Surf Forecast for Masachapa
type: Dataset
description: 10-day surf forecast with Strike Scores for Masachapa, Managua, Nicaragua
about: Masachapa
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 11.7869
    longitude: -86.5142
  description: Masachapa is Nicaragua's authentic local surf scene—a fishing village south of the resort zone where Nicaraguan surfers gather on weekends to escape Managua and ride consistent beachbreak peaks. The wave quality matches nearby Montelimar, but the atmosphere couldn't be more different: this is working-class Nicaragua, with fresh-caught seafood, cold beer, and a community that's been surfing here for decades. For travelers wanting to experience Nicaraguan surf culture rather than the international backpacker scene, Masachapa delivers genuine local flavor.
summary:
  best day:
    date: 2026-08-09
    score: 85
    category: Firing
    explanation: Best day in the forecast: 2026-08-09 with a score of 85/100 (Firing)
  firing days count: 1
  firing days:
    date: 2026-08-09
    score: 85
  overall recommendation: Moderate recommendation: Masachapa has 1 Firing day(s) and 6 Good day(s). Worth considering.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 64
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 18
        out of: 25
        explanation: Moderate alignment: Swell from 190° is 10° off optimal 200°, workable but not ideal.
      swell size:
        score: 12
        out of: 25
        explanation: Marginal size: 1.0m is 0.3m from ideal 1.3m.
      swell period:
        score: 8
        out of: 25
        explanation: Moderate period: 11s meets minimum 10s but below ideal 14s. Some groundswell energy present.
      wind:
        score: 24
        out of: 25
        explanation: Moderate offshore: 15 km/h from 78° (ENE). Still grooming but noticeable wind.
    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: Surfable but not special at Masachapa. The 1.0m swell from 190° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 1
      height ft: 3.3
      direction degrees: 190
      direction cardinal: S
      period s: 11
      explanation: 1.0m (3.3ft) swell from 190° (S) at 11s period
    wind:
      speed kmh: 15
      speed mph: 9.3
      direction degrees: 78
      direction cardinal: ENE
      explanation: 15 km/h (9 mph) from 78° (ENE)
    secondary swell:
      height m: 0.5
      direction degrees: 236
      direction cardinal: SW
      period s: 11
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 52
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 17
        out of: 25
        explanation: Moderate alignment: Swell from 189° is 11° off optimal 200°, workable but not ideal.
      swell size:
        score: 11
        out of: 25
        explanation: Marginal size: 0.9m is 0.4m from ideal 1.3m.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 9s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 18
        out of: 25
        explanation: Moderate offshore: 17 km/h from 89° (E). Still grooming but noticeable wind.
    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: Surfable but not special at Masachapa. The 0.9m swell from 189° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 189
      direction cardinal: S
      period s: 9
      explanation: 0.9m (3.0ft) swell from 189° (S) at 9s period
    wind:
      speed kmh: 17
      speed mph: 10.6
      direction degrees: 89
      direction cardinal: E
      explanation: 17 km/h (11 mph) from 89° (E)
    windswell:
      height m: 0.3
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-06
  day index: 2
  strike score:
    final score: 54
    category: Fair
    category emoji: 😐
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 16
        out of: 25
        explanation: Moderate alignment: Swell from 187° is 13° off optimal 200°, workable but not ideal.
      swell size:
        score: 11
        out of: 25
        explanation: Marginal size: 0.9m is 0.4m from ideal 1.3m.
      swell period:
        score: 6
        out of: 25
        explanation: Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
      wind:
        score: 19
        out of: 25
        explanation: Moderate offshore: 16 km/h from 88° (E). Still grooming but noticeable wind.
    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: Surfable but not special at Masachapa. The 0.9m swell from 187° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 187
      direction cardinal: S
      period s: 10
      explanation: 0.9m (3.0ft) swell from 187° (S) at 10s period
    wind:
      speed kmh: 16
      speed mph: 9.9
      direction degrees: 88
      direction cardinal: E
      explanation: 16 km/h (10 mph) from 88° (E)
    secondary swell:
      height m: 0.4
      direction degrees: 234
      direction cardinal: SW
      period s: 14
    windswell:
      height m: 0.3
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 3
provider: Strike Mission
date published: 2026-08-05T00:29:53.856Z
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)

final score: 72
category: Good
category emoji: ✅
confidence: 0.92
confidence explanation: High confidence (2-3 day forecast)
breakdown:
  swell direction:
    score: 14
    out of: 25
    explanation: Moderate alignment: Swell from 217° is 17° off optimal 200°, workable but not ideal.
  swell size:
    score: 11
    out of: 25
    explanation: Marginal size: 0.9m is 0.4m from ideal 1.3m.
  swell period:
    score: 25
    out of: 25
    explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
  wind:
    score: 23
    out of: 25
    explanation: Moderate offshore: 16 km/h from 82° (E). Still grooming but noticeable wind.
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: Good surfable conditions at Masachapa. 0.9m swell from 217° with moderate wind. Solid session guaranteed.

swell:
  height m: 0.9
  height ft: 3.0
  direction degrees: 217
  direction cardinal: SW
  period s: 15
  explanation: 0.9m (3.0ft) swell from 217° (SW) at 15s period
wind:
  speed kmh: 16
  speed mph: 9.9
  direction degrees: 82
  direction cardinal: E
  explanation: 16 km/h (10 mph) from 82° (E)
secondary swell:
  height m: 0.4
  direction degrees: 186
  direction cardinal: S
  period s: 11
windswell:
  height m: 0.4
  period s: 2
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-08
day index: 4
strike score:
  final score: 76
  category: Good
  category emoji: ✅
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 16
      out of: 25
      explanation: Moderate alignment: Swell from 213° is 13° off optimal 200°, workable but not ideal.
    swell size:
      score: 14
      out of: 25
      explanation: Marginal size: 1.1m is 0.2m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 19
      out of: 25
      explanation: Moderate offshore: 13 km/h from 93° (E). Still grooming but noticeable wind.
  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: Good surfable conditions at Masachapa. 1.1m swell from 213° with manageable wind. Solid session guaranteed.
conditions:
  swell:
    height m: 1.1
    height ft: 3.6
    direction degrees: 213
    direction cardinal: SSW
    period s: 15
    explanation: 1.1m (3.6ft) swell from 213° (SSW) at 15s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 93
    direction cardinal: E
    explanation: 13 km/h (8 mph) from 93° (E)
  secondary swell:
    height m: 0.4
    direction degrees: 184
    direction cardinal: S
    period s: 8
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 5
strike score:
  final score: 85
  category: Firing
  category emoji: 🔥
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 19
      out of: 25
      explanation: Moderate alignment: Swell from 209° is 9° off optimal 200°, workable but not ideal.
    swell size:
      score: 14
      out of: 25
      explanation: Marginal size: 1.1m is 0.2m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 23
      out of: 25
      explanation: Moderate offshore: 18 km/h from 78° (ENE). Still grooming but noticeable wind.
  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: Excellent conditions at Masachapa. The 1.1m swell from 209° aligns well with the spot, and offshore winds are grooming the face. Worth planning a trip around this.
conditions:
  swell:
    height m: 1.1
    height ft: 3.6
    direction degrees: 209
    direction cardinal: SSW
    period s: 15
    explanation: 1.1m (3.6ft) swell from 209° (SSW) at 15s period
  wind:
    speed kmh: 18
    speed mph: 11.2
    direction degrees: 78
    direction cardinal: ENE
    explanation: 18 km/h (11 mph) from 78° (ENE)
  secondary swell:
    height m: 0.4
    direction degrees: 268
    direction cardinal: W
    period s: 10
  windswell:
    height m: 0.4
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 6
strike score:
  final score: 73
  category: Good
  category emoji: ✅
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 14
      out of: 25
      explanation: Moderate alignment: Swell from 217° is 17° off optimal 200°, workable but not ideal.
    swell size:
      score: 11
      out of: 25
      explanation: Marginal size: 0.9m is 0.4m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 22
      out of: 25
      explanation: Strong offshore: 20 km/h from 80° (E). 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: Good surfable conditions at Masachapa. 0.9m swell from 217° with moderate wind. Solid session guaranteed.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 217
    direction cardinal: SW
    period s: 14
    explanation: 0.9m (3.0ft) swell from 217° (SW) at 14s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 80
    direction cardinal: E
    explanation: 20 km/h (12 mph) from 80° (E)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 70
  category: Good
  category emoji: ✅
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 20
      out of: 25
      explanation: Good alignment: Swell from 207° is 7° off optimal 200°, still within prime range.
    swell size:
      score: 11
      out of: 25
      explanation: Marginal size: 0.9m is 0.4m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 10
      out of: 25
      explanation: Moderate offshore: 15 km/h from 97° (E). Still grooming but noticeable wind.
  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: Good surfable conditions at Masachapa. 0.9m swell from 207° with moderate wind. Solid session guaranteed.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 207
    direction cardinal: SSW
    period s: 14
    explanation: 0.9m (3.0ft) swell from 207° (SSW) at 14s period
  wind:
    speed kmh: 15
    speed mph: 9.3
    direction degrees: 97
    direction cardinal: E
    explanation: 15 km/h (9 mph) from 97° (E)
  secondary swell:
    height m: 0.5
    direction degrees: 221
    direction cardinal: SW
    period s: 16
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 8
strike score:
  final score: 72
  category: Good
  category emoji: ✅
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 14
      out of: 25
      explanation: Moderate alignment: Swell from 218° is 18° off optimal 200°, workable but not ideal.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 0.7m is 0.6m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 23
      out of: 25
      explanation: Moderate offshore: 18 km/h from 78° (ENE). Still grooming but noticeable wind.
  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: Good surfable conditions at Masachapa. 0.7m swell from 218° with moderate wind. Solid session guaranteed.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 218
    direction cardinal: SW
    period s: 15
    explanation: 0.7m (2.3ft) swell from 218° (SW) at 15s period
  wind:
    speed kmh: 18
    speed mph: 11.2
    direction degrees: 78
    direction cardinal: ENE
    explanation: 18 km/h (11 mph) from 78° (ENE)
  secondary swell:
    height m: 0.5
    direction degrees: 195
    direction cardinal: SSW
    period s: 13
  windswell:
    height m: 0.4
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 9
strike score:
  final score: 74
  category: Good
  category emoji: ✅
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 16
      out of: 25
      explanation: Moderate alignment: Swell from 186° is 14° off optimal 200°, workable but not ideal.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 0.7m is 0.6m from ideal 1.3m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 23
      out of: 25
      explanation: Moderate offshore: 17 km/h from 76° (ENE). Still grooming but noticeable wind.
  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: Good surfable conditions at Masachapa. 0.7m swell from 186° with moderate wind. Solid session guaranteed.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 186
    direction cardinal: S
    period s: 15
    explanation: 0.7m (2.3ft) swell from 186° (S) at 15s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 76
    direction cardinal: ENE
    explanation: 17 km/h (11 mph) from 76° (ENE)
  secondary swell:
    height m: 0.4
    direction degrees: 222
    direction cardinal: SW
    period s: 17
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization