Surf Forecast for La Portada
type: Dataset
description: 10-day surf forecast with Strike Scores for La Portada, Antofagasta, Chile
about: La Portada
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -23.49875
    longitude: -70.42442
  description: La Portada is a quality reef break near the famous natural arch rock formation.
summary:
  best day:
    date: 2026-08-04
    score: 61
    category: Fair
    explanation: Best day in the forecast: 2026-08-04 with a score of 61/100 (Fair)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 40/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 61
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 21
        out of: 25
        explanation: Good alignment: Swell from 230° is 5° off optimal 235°, still within prime range.
      swell size:
        score: 23
        out of: 25
        explanation: Good size: 2.4m is within 15% of ideal 2.1m.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 15
        out of: 25
        explanation: Onshore/cross-shore: 7 km/h from 282° (WNW). Destroying wave quality. Offshore range: 60°-140°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      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 La Portada. The 2.4m swell from 230° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 2.4
      height ft: 7.9
      direction degrees: 230
      direction cardinal: SW
      period s: 10
      explanation: 2.4m (7.9ft) swell from 230° (SW) at 10s period
    wind:
      speed kmh: 7
      speed mph: 4.3
      direction degrees: 282
      direction cardinal: WNW
      explanation: 7 km/h (4 mph) from 282° (WNW)
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 51
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 20
        out of: 25
        explanation: Good alignment: Swell from 229° is 6° off optimal 235°, still within prime range.
      swell size:
        score: 17
        out of: 25
        explanation: Marginal size: 2.1m is 0.0m from ideal 2.1m.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 13
        out of: 25
        explanation: Onshore/cross-shore: 8 km/h from 239° (WSW). Destroying wave quality. Offshore range: 60°-140°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      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 La Portada. The 2.1m swell from 229° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 2.1
      height ft: 6.9
      direction degrees: 229
      direction cardinal: SW
      period s: 10
      explanation: 2.1m (6.9ft) swell from 229° (SW) at 10s period
    wind:
      speed kmh: 8
      speed mph: 5.0
      direction degrees: 239
      direction cardinal: WSW
      explanation: 8 km/h (5 mph) from 239° (WSW)
forecasts:
  date: 2026-08-06
  day index: 2
  strike score:
    final score: 49
    category: Fair
    category emoji: 😐
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 21
        out of: 25
        explanation: Good alignment: Swell from 230° is 5° off optimal 235°, still within prime range.
      swell size:
        score: 16
        out of: 25
        explanation: Marginal size: 2.0m is 0.1m from ideal 2.1m.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 11
        out of: 25
        explanation: Onshore/cross-shore: 10 km/h from 191° (S). Destroying wave quality. Offshore range: 60°-140°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      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 La Portada. The 2.0m swell from 230° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 2
      height ft: 6.6
      direction degrees: 230
      direction cardinal: SW
      period s: 10
      explanation: 2.0m (6.6ft) swell from 230° (SW) at 10s period
    wind:
      speed kmh: 10
      speed mph: 6.2
      direction degrees: 191
      direction cardinal: S
      explanation: 10 km/h (6 mph) from 191° (S)
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 34
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 17
        out of: 25
        explanation: Moderate alignment: Swell from 224° is 11° off optimal 235°, workable but not ideal.
      swell size:
        score: 15
        out of: 25
        explanation: Marginal size: 1.9m is 0.2m from ideal 2.1m.
      swell period:
        score: 6
        out of: 25
        explanation: Moderate period: 12s meets minimum 12s but below ideal 16s. Some groundswell energy present.
      wind:
        score: 3
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 197° (SSW). Destroying wave quality. Offshore range: 60°-140°.
    summary: Poor conditions at La Portada. Either swell direction (224°), size (1.9m), or wind (14 km/h from 197°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T00:29:53.084Z
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)

wind history:
  adjustment: 0
  groomed: false
  morning sickness: false
  explanation: No significant wind history adjustment.
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.

swell:
  height m: 1.9
  height ft: 6.2
  direction degrees: 224
  direction cardinal: SW
  period s: 12
  explanation: 1.9m (6.2ft) swell from 224° (SW) at 12s period
wind:
  speed kmh: 14
  speed mph: 8.7
  direction degrees: 197
  direction cardinal: SSW
  explanation: 14 km/h (9 mph) from 197° (SSW)
secondary swell:
  height m: 1.1
  direction degrees: 231
  direction cardinal: SW
  period s: 11

date: 2026-08-08
day index: 4
strike score:
  final score: 35
  category: Poor
  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 221° is 14° off optimal 235°, workable but not ideal.
    swell size:
      score: 23
      out of: 25
      explanation: Good size: 2.4m is within 15% of ideal 2.1m.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 9s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 20 km/h from 191° (S). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. Either swell direction (221°), size (2.4m), or wind (20 km/h from 191°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.4
    height ft: 7.9
    direction degrees: 221
    direction cardinal: SW
    period s: 9
    explanation: 2.4m (7.9ft) swell from 221° (SW) at 9s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 191
    direction cardinal: S
    explanation: 20 km/h (12 mph) from 191° (S)
  secondary swell:
    height m: 0.6
    direction degrees: 225
    direction cardinal: SW
    period s: 15
  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: 50
  category: Fair
  category emoji: 😐
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 14
      out of: 25
      explanation: Moderate alignment: Swell from 218° is 17° off optimal 235°, workable but not ideal.
    swell size:
      score: 19
      out of: 25
      explanation: Marginal size: 2.8m is 0.7m from ideal 2.1m.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 12s meets minimum 12s but below ideal 16s. Some groundswell energy present.
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 10 km/h from 218° (SW). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. The 2.8m swell from 218° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 2.8
    height ft: 9.2
    direction degrees: 218
    direction cardinal: SW
    period s: 12
    explanation: 2.8m (9.2ft) swell from 218° (SW) at 12s period
  wind:
    speed kmh: 10
    speed mph: 6.2
    direction degrees: 218
    direction cardinal: SW
    explanation: 10 km/h (6 mph) from 218° (SW)
  secondary swell:
    height m: 0.9
    direction degrees: 173
    direction cardinal: S
    period s: 6

date: 2026-08-10
day index: 6
strike score:
  final score: 41
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 13
      out of: 25
      explanation: Moderate alignment: Swell from 215° is 20° off optimal 235°, workable but not ideal.
    swell size:
      score: 18
      out of: 25
      explanation: Marginal size: 2.9m is 0.8m from ideal 2.1m.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 11s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 195° (SSW). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. Either swell direction (215°), size (2.9m), or wind (13 km/h from 195°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.9
    height ft: 9.5
    direction degrees: 215
    direction cardinal: SW
    period s: 11
    explanation: 2.9m (9.5ft) swell from 215° (SW) at 11s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 195
    direction cardinal: SSW
    explanation: 13 km/h (8 mph) from 195° (SSW)

date: 2026-08-11
day index: 7
strike score:
  final score: 36
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 12
      out of: 25
      explanation: Moderate alignment: Swell from 214° is 21° off optimal 235°, workable but not ideal.
    swell size:
      score: 17
      out of: 25
      explanation: Marginal size: 2.1m is 0.0m from ideal 2.1m.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 195° (SSW). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. Either swell direction (214°), size (2.1m), or wind (13 km/h from 195°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.1
    height ft: 6.9
    direction degrees: 214
    direction cardinal: SW
    period s: 10
    explanation: 2.1m (6.9ft) swell from 214° (SW) at 10s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 195
    direction cardinal: SSW
    explanation: 13 km/h (8 mph) from 195° (SSW)

date: 2026-08-12
day index: 8
strike score:
  final score: 0
  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 211° is 24° off optimal 235°, workable but not ideal.
    swell size:
      score: 10
      out of: 25
      explanation: Marginal size: 1.4m is 0.7m from ideal 2.1m.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 17 km/h from 195° (SSW). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. Either swell direction (211°), size (1.4m), or wind (17 km/h from 195°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.4
    height ft: 4.6
    direction degrees: 211
    direction cardinal: SSW
    period s: 10
    explanation: 1.4m (4.6ft) swell from 211° (SSW) at 10s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 195
    direction cardinal: SSW
    explanation: 17 km/h (11 mph) from 195° (SSW)
  secondary swell:
    height m: 0.8
    direction degrees: 224
    direction cardinal: SW
    period s: 7

date: 2026-08-13
day index: 9
strike score:
  final score: 41
  category: Poor
  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 221° is 14° off optimal 235°, workable but not ideal.
    swell size:
      score: 8
      out of: 25
      explanation: Marginal size: 1.2m is 0.9m from ideal 2.1m.
    swell period:
      score: 14
      out of: 25
      explanation: Moderate period: 14s meets minimum 12s but below ideal 16s. Some groundswell energy present.
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 193° (SSW). Destroying wave quality. Offshore range: 60°-140°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 La Portada. Either swell direction (221°), size (1.2m), or wind (13 km/h from 193°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.2
    height ft: 3.9
    direction degrees: 221
    direction cardinal: SW
    period s: 14
    explanation: 1.2m (3.9ft) swell from 221° (SW) at 14s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 193
    direction cardinal: SSW
    explanation: 13 km/h (8 mph) from 193° (SSW)
  secondary swell:
    height m: 0.8
    direction degrees: 225
    direction cardinal: SW
    period s: 12

Strike Mission
type: Organization