Surf Forecast for Popoyo Outer Reef
type: Dataset
description: 10-day surf forecast with Strike Scores for Popoyo Outer Reef, Rivas, Nicaragua
about: Popoyo Outer Reef
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 11.445
    longitude: -86.12
  description: Popoyo Outer Reef is Central America's legitimate big wave spot—a heavy left reef break that only shows its true form on solid southwest swells and transforms into Nicaragua's most challenging wave. While the inner reefs entertain intermediate surfers, the outer reef lurks offshore waiting for the big pulse. When it arrives, the wave jacks up over shallow reef and delivers long, powerful left barrels with serious consequences. This is not for the casual traveler—it's for experienced big wave surfers seeking Central America's heaviest wave.
summary:
  best day:
    date: 2026-08-04
    score: 30
    category: Poor
    explanation: Best day in the forecast: 2026-08-04 with a score of 30/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 20/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 30
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 14
        out of: 25
        explanation: Moderate alignment: Swell from 192° is 18° off optimal 210°, workable but not ideal.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 1.1m is below minimum 2.0m. Waves will be weak/mushy.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 11s is below minimum 14s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 21
        out of: 25
        explanation: Strong offshore: 24 km/h from 66° (ENE). Grooming but may make paddling difficult.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      windswell penalty:
        adjustment: 0
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Poor conditions at Popoyo Outer Reef. Either swell direction (192°), size (1.1m), or wind (24 km/h from 66°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1.1
      height ft: 3.6
      direction degrees: 192
      direction cardinal: SSW
      period s: 11
      explanation: 1.1m (3.6ft) swell from 192° (SSW) at 11s period
    wind:
      speed kmh: 24
      speed mph: 14.9
      direction degrees: 66
      direction cardinal: ENE
      explanation: 24 km/h (15 mph) from 66° (ENE)
    secondary swell:
      height m: 0.5
      direction degrees: 227
      direction cardinal: SW
      period s: 12
    windswell:
      height m: 0.4
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 23
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 13
        out of: 25
        explanation: Moderate alignment: Swell from 191° is 19° off optimal 210°, workable but not ideal.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 1.0m is below minimum 2.0m. Waves will be weak/mushy.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 8s is below minimum 14s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 14
        out of: 25
        explanation: Strong offshore: 25 km/h from 69° (ENE). Grooming but may make paddling difficult.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      windswell penalty:
        adjustment: 0
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Poor conditions at Popoyo Outer Reef. Either swell direction (191°), size (1.0m), or wind (25 km/h from 69°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1
      height ft: 3.3
      direction degrees: 191
      direction cardinal: S
      period s: 8
      explanation: 1.0m (3.3ft) swell from 191° (S) at 8s period
    wind:
      speed kmh: 25
      speed mph: 15.5
      direction degrees: 69
      direction cardinal: ENE
      explanation: 25 km/h (16 mph) from 69° (ENE)
    windswell:
      height m: 0.4
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-06
  day index: 2
  strike score:
    final score: 15
    category: Poor
    category emoji: 💤
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 13
        out of: 25
        explanation: Moderate alignment: Swell from 190° is 20° off optimal 210°, workable but not ideal.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.9m is below minimum 2.0m. Waves will be weak/mushy.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 8s is below minimum 14s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 11
        out of: 25
        explanation: Strong offshore: 24 km/h from 76° (ENE). Grooming but may make paddling difficult.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      windswell penalty:
        adjustment: -3
        windswell degraded: false
        explanation: Groundswell-dominant conditions (clean, long-period waves).
      secondary swell bonus:
        adjustment: 0
        explanation: No secondary swell bonus.
    summary: Poor conditions at Popoyo Outer Reef. Either swell direction (190°), size (0.9m), or wind (24 km/h from 76°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 190
      direction cardinal: S
      period s: 8
      explanation: 0.9m (3.0ft) swell from 190° (S) at 8s period
    wind:
      speed kmh: 24
      speed mph: 14.9
      direction degrees: 76
      direction cardinal: ENE
      explanation: 24 km/h (15 mph) from 76° (ENE)
    secondary swell:
      height m: 0.4
      direction degrees: 222
      direction cardinal: SW
      period s: 15
    windswell:
      height m: 0.5
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
provider: Strike Mission
date published: 2026-08-05T00:30:52.495Z
temporal coverage: 2026-08-04/2026-08-13
data sources: Open-Meteo Marine API (swell/wave data)
data sources: Open-Meteo Weather API (wind/weather data)

date: 2026-08-07
day index: 3
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.92
  confidence explanation: High confidence (2-3 day forecast)
  breakdown:
    swell direction:
      score: 24
      out of: 25
      explanation: Perfect alignment: Swell from 209° is within 5° of optimal 210°.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.8m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 14s meets minimum 14s but below ideal 18s. Some groundswell energy present.
    wind:
      score: 14
      out of: 25
      explanation: Strong offshore: 28 km/h from 69° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -5
      windswell degraded: true
      explanation: -5 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (209°), size (0.8m), or wind (28 km/h from 69°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.8
    height ft: 2.6
    direction degrees: 209
    direction cardinal: SSW
    period s: 14
    explanation: 0.8m (2.6ft) swell from 209° (SSW) at 14s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 69
    direction cardinal: ENE
    explanation: 28 km/h (17 mph) from 69° (ENE)
  secondary swell:
    height m: 0.5
    direction degrees: 199
    direction cardinal: SSW
    period s: 10
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-08
day index: 4
strike score:
  final score: 30
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 21
      out of: 25
      explanation: Good alignment: Swell from 215° is 5° off optimal 210°, still within prime range.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 1.2m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 13s is below minimum 14s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 15
      out of: 25
      explanation: Strong offshore: 26 km/h from 68° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -3
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (215°), size (1.2m), or wind (26 km/h from 68°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.2
    height ft: 3.9
    direction degrees: 215
    direction cardinal: SW
    period s: 13
    explanation: 1.2m (3.9ft) swell from 215° (SW) at 13s period
  wind:
    speed kmh: 26
    speed mph: 16.2
    direction degrees: 68
    direction cardinal: ENE
    explanation: 26 km/h (16 mph) from 68° (ENE)
  secondary swell:
    height m: 0.4
    direction degrees: 223
    direction cardinal: SW
    period s: 9
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 5
strike score:
  final score: 26
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 17
      out of: 25
      explanation: Moderate alignment: Swell from 221° is 11° off optimal 210°, workable but not ideal.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 1.0m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 13s is below minimum 14s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 12
      out of: 25
      explanation: Strong offshore: 28 km/h from 71° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -3
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (221°), size (1.0m), or wind (28 km/h from 71°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 221
    direction cardinal: SW
    period s: 13
    explanation: 1.0m (3.3ft) swell from 221° (SW) at 13s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 71
    direction cardinal: ENE
    explanation: 28 km/h (17 mph) from 71° (ENE)
  secondary swell:
    height m: 0.5
    direction degrees: 195
    direction cardinal: SSW
    period s: 10
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 6
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 15
      out of: 25
      explanation: Moderate alignment: Swell from 225° is 15° off optimal 210°, workable but not ideal.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.9m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 12s is below minimum 14s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 15
      out of: 25
      explanation: Strong offshore: 28 km/h from 68° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -3
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (225°), size (0.9m), or wind (28 km/h from 68°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 225
    direction cardinal: SW
    period s: 12
    explanation: 0.9m (3.0ft) swell from 225° (SW) at 12s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 68
    direction cardinal: ENE
    explanation: 28 km/h (17 mph) from 68° (ENE)
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 16
      out of: 25
      explanation: Moderate alignment: Swell from 223° is 13° off optimal 210°, workable but not ideal.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.9m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 12s is below minimum 14s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 15
      out of: 25
      explanation: Strong offshore: 29 km/h from 68° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -5
      windswell degraded: true
      explanation: -5 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (223°), size (0.9m), or wind (29 km/h from 68°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 223
    direction cardinal: SW
    period s: 12
    explanation: 0.9m (3.0ft) swell from 223° (SW) at 12s period
  wind:
    speed kmh: 29
    speed mph: 18.0
    direction degrees: 68
    direction cardinal: ENE
    explanation: 29 km/h (18 mph) from 68° (ENE)
  secondary swell:
    height m: 0.4
    direction degrees: 223
    direction cardinal: SW
    period s: 16
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 8
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 21
      out of: 25
      explanation: Good alignment: Swell from 215° is 5° off optimal 210°, still within prime range.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.7m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 15s meets minimum 14s but below ideal 18s. Some groundswell energy present.
    wind:
      score: 15
      out of: 25
      explanation: Strong offshore: 27 km/h from 68° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -5
      windswell degraded: true
      explanation: -5 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (215°), size (0.7m), or wind (27 km/h from 68°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 215
    direction cardinal: SW
    period s: 15
    explanation: 0.7m (2.3ft) swell from 215° (SW) at 15s period
  wind:
    speed kmh: 27
    speed mph: 16.8
    direction degrees: 68
    direction cardinal: ENE
    explanation: 27 km/h (17 mph) from 68° (ENE)
  secondary swell:
    height m: 0.5
    direction degrees: 196
    direction cardinal: SSW
    period s: 13
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 9
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 11
      out of: 25
      explanation: Moderate alignment: Swell from 184° is 26° off optimal 210°, workable but not ideal.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.8m is below minimum 2.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 13s is below minimum 14s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 16
      out of: 25
      explanation: Strong offshore: 26 km/h from 67° (ENE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 6
      groomed: true
      morning sickness: false
      explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
    windswell penalty:
      adjustment: -3
      windswell degraded: false
      explanation: Groundswell-dominant conditions (clean, long-period waves).
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Popoyo Outer Reef. Either swell direction (184°), size (0.8m), or wind (26 km/h from 67°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.8
    height ft: 2.6
    direction degrees: 184
    direction cardinal: S
    period s: 13
    explanation: 0.8m (2.6ft) swell from 184° (S) at 13s period
  wind:
    speed kmh: 26
    speed mph: 16.2
    direction degrees: 67
    direction cardinal: ENE
    explanation: 26 km/h (16 mph) from 67° (ENE)
  secondary swell:
    height m: 0.4
    direction degrees: 223
    direction cardinal: SW
    period s: 17
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization