Surf Forecast for São Pedro
type: Dataset
description: 10-day surf forecast with Strike Scores for São Pedro, São Vicente, Cape Verde
about: São Pedro
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 16.82415
    longitude: -25.05966
  description: São Pedro is a beach break on São Vicente Island, home to Cape Verde's cultural capital Mindelo. The wave offers fun peaks for all levels, with the dramatic mountainous backdrop of the island adding visual interest. The beach is popular with locals and visitors alike.
summary:
  best day:
    date: 2026-08-06
    score: 15
    category: Poor
    explanation: Best day in the forecast: 2026-08-06 with a score of 15/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 2/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 0
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 0
        out of: 25
        explanation: No alignment: Swell from 192° is outside workable range 280°-350°. Wrong swell direction for this spot.
      swell size:
        score: 3
        out of: 25
        explanation: Too small: 0.8m is below minimum 1.0m. Waves will be weak/mushy.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 7s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 15
        out of: 25
        explanation: Onshore/cross-shore: 7 km/h from 301° (WNW). Destroying wave quality. Offshore range: 60°-130°.
    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 São Pedro. Either swell direction (192°), size (0.8m), or wind (7 km/h from 301°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.8
      height ft: 2.6
      direction degrees: 192
      direction cardinal: SSW
      period s: 7
      explanation: 0.8m (2.6ft) swell from 192° (SSW) at 7s period
    wind:
      speed kmh: 7
      speed mph: 4.3
      direction degrees: 301
      direction cardinal: WNW
      explanation: 7 km/h (4 mph) from 301° (WNW)
    secondary swell:
      height m: 0.4
      direction degrees: 179
      direction cardinal: S
      period s: 10
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 0
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 0
        out of: 25
        explanation: No alignment: Swell from 190° is outside workable range 280°-350°. Wrong swell direction for this spot.
      swell size:
        score: 3
        out of: 25
        explanation: Too small: 0.7m is below minimum 1.0m. Waves will be weak/mushy.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 8s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 11
        out of: 25
        explanation: Onshore/cross-shore: 9 km/h from 250° (WSW). Destroying wave quality. Offshore range: 60°-130°.
    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 São Pedro. Either swell direction (190°), size (0.7m), or wind (9 km/h from 250°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.7
      height ft: 2.3
      direction degrees: 190
      direction cardinal: S
      period s: 8
      explanation: 0.7m (2.3ft) swell from 190° (S) at 8s period
    wind:
      speed kmh: 9
      speed mph: 5.6
      direction degrees: 250
      direction cardinal: WSW
      explanation: 9 km/h (6 mph) from 250° (WSW)
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: 0
        out of: 25
        explanation: No alignment: Swell from 178° is outside workable range 280°-350°. Wrong swell direction for this spot.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 0.6m is below minimum 1.0m. Waves will be weak/mushy.
      swell period:
        score: 23
        out of: 25
        explanation: Good period: 13s is 93% of ideal 14s. Clean, powerful groundswell.
      wind:
        score: 4
        out of: 25
        explanation: Onshore/cross-shore: 13 km/h from 257° (WSW). Destroying wave quality. Offshore range: 60°-130°.
    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 São Pedro. Either swell direction (178°), size (0.6m), or wind (13 km/h from 257°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.6
      height ft: 2.0
      direction degrees: 178
      direction cardinal: S
      period s: 13
      explanation: 0.6m (2.0ft) swell from 178° (S) at 13s period
    wind:
      speed kmh: 13
      speed mph: 8.1
      direction degrees: 257
      direction cardinal: WSW
      explanation: 13 km/h (8 mph) from 257° (WSW)
    secondary swell:
      height m: 0.4
      direction degrees: 40
      direction cardinal: NE
      period s: 6
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 2
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 0
        out of: 25
        explanation: No alignment: Swell from 179° is outside workable range 280°-350°. Wrong swell direction for this spot.
      swell size:
        score: 5
        out of: 25
        explanation: Too small: 0.9m is below minimum 1.0m. Waves will be weak/mushy.
    summary: Poor conditions at São Pedro. Either swell direction (179°), size (0.9m), or wind (17 km/h from 41°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T03:11:52.786Z
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)

score: 14
out of: 25
explanation: Moderate period: 12s meets minimum 10s but below ideal 14s. Some groundswell energy present.

score: 1
out of: 25
explanation: Onshore/cross-shore: 17 km/h from 41° (NE). Destroying wave quality. Offshore range: 60°-130°.

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: 0.9
  height ft: 3.0
  direction degrees: 179
  direction cardinal: S
  period s: 12
  explanation: 0.9m (3.0ft) swell from 179° (S) at 12s period
wind:
  speed kmh: 17
  speed mph: 10.6
  direction degrees: 41
  direction cardinal: NE
  explanation: 17 km/h (11 mph) from 41° (NE)
secondary swell:
  height m: 0.4
  direction degrees: 45
  direction cardinal: NE
  period s: 6

date: 2026-08-08
day index: 4
strike score:
  final score: 0
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 179° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 1.1m is 0.6m from ideal 1.8m.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 25 km/h from 41° (NE). Destroying wave quality. Offshore range: 60°-130°.
  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 São Pedro. Either swell direction (179°), size (1.1m), or wind (25 km/h from 41°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.1
    height ft: 3.6
    direction degrees: 179
    direction cardinal: S
    period s: 10
    explanation: 1.1m (3.6ft) swell from 179° (S) at 10s period
  wind:
    speed kmh: 25
    speed mph: 15.5
    direction degrees: 41
    direction cardinal: NE
    explanation: 25 km/h (16 mph) from 41° (NE)

date: 2026-08-09
day index: 5
strike score:
  final score: 0
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 176° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 5
      out of: 25
      explanation: Too small: 0.9m is below minimum 1.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 9s is below minimum 10s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 28 km/h from 30° (NNE). Destroying wave quality. Offshore range: 60°-130°.
  adjustments:
    wind history:
      adjustment: -10
      groomed: false
      morning sickness: true
      explanation: -10 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    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 São Pedro. Either swell direction (176°), size (0.9m), or wind (28 km/h from 30°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 176
    direction cardinal: S
    period s: 9
    explanation: 0.9m (3.0ft) swell from 176° (S) at 9s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 30
    direction cardinal: NNE
    explanation: 28 km/h (17 mph) from 30° (NNE)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 6
strike score:
  final score: 0
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 181° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.6m is below minimum 1.0m. Waves will be weak/mushy.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 32 km/h from 34° (NE). Destroying wave quality. Offshore range: 60°-130°.
  adjustments:
    wind history:
      adjustment: -17
      groomed: false
      morning sickness: true
      explanation: -17 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    windswell penalty:
      adjustment: -7
      windswell degraded: true
      explanation: -7 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at São Pedro. Either swell direction (181°), size (0.6m), or wind (32 km/h from 34°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.6
    height ft: 2.0
    direction degrees: 181
    direction cardinal: S
    period s: 10
    explanation: 0.6m (2.0ft) swell from 181° (S) at 10s period
  wind:
    speed kmh: 32
    speed mph: 19.9
    direction degrees: 34
    direction cardinal: NE
    explanation: 32 km/h (20 mph) from 34° (NE)
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 0
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 170° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.7m is below minimum 1.0m. Waves will be weak/mushy.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 10s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 29 km/h from 38° (NE). Destroying wave quality. Offshore range: 60°-130°.
  adjustments:
    wind history:
      adjustment: -21
      groomed: false
      morning sickness: true
      explanation: -21 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    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 São Pedro. Either swell direction (170°), size (0.7m), or wind (29 km/h from 38°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 170
    direction cardinal: S
    period s: 10
    explanation: 0.7m (2.3ft) swell from 170° (S) at 10s period
  wind:
    speed kmh: 29
    speed mph: 18.0
    direction degrees: 38
    direction cardinal: NE
    explanation: 29 km/h (18 mph) from 38° (NE)
  secondary swell:
    height m: 0.4
    direction degrees: 184
    direction cardinal: S
    period s: 11
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

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: 0
      out of: 25
      explanation: No alignment: Swell from 171° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.8m is below minimum 1.0m. Waves will be weak/mushy.
    swell period:
      score: 4
      out of: 25
      explanation: Short period: 9s is below minimum 10s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 28 km/h from 34° (NE). Destroying wave quality. Offshore range: 60°-130°.
  adjustments:
    wind history:
      adjustment: -21
      groomed: false
      morning sickness: true
      explanation: -21 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    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 São Pedro. Either swell direction (171°), size (0.8m), or wind (28 km/h from 34°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.8
    height ft: 2.6
    direction degrees: 171
    direction cardinal: S
    period s: 9
    explanation: 0.8m (2.6ft) swell from 171° (S) at 9s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 34
    direction cardinal: NE
    explanation: 28 km/h (17 mph) from 34° (NE)
  secondary swell:
    height m: 0.5
    direction degrees: 67
    direction cardinal: ENE
    period s: 7
  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: 0
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 170° is outside workable range 280°-350°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.7m is below minimum 1.0m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 8s is below minimum 10s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 23 km/h from 41° (NE). Destroying wave quality. Offshore range: 60°-130°.
  adjustments:
    wind history:
      adjustment: -21
      groomed: false
      morning sickness: true
      explanation: -21 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    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 São Pedro. Either swell direction (170°), size (0.7m), or wind (23 km/h from 41°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 170
    direction cardinal: S
    period s: 8
    explanation: 0.7m (2.3ft) swell from 170° (S) at 8s period
  wind:
    speed kmh: 23
    speed mph: 14.3
    direction degrees: 41
    direction cardinal: NE
    explanation: 23 km/h (14 mph) from 41° (NE)
  secondary swell:
    height m: 0.5
    direction degrees: 39
    direction cardinal: NE
    period s: 7
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization