Surf Forecast for Calle 70
type: Dataset
description: 10-day surf forecast with Strike Scores for Calle 70, Havana, Cuba
about: Calle 70
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 23.12
    longitude: -82.43
  description: Calle 70 is Havana's main urban surf spot—a quirky reef break that comes alive when N swells hit Cuba's north coast. The local crew has limited equipment but unlimited stoke, making this one of the world's most unique surf scenes.
summary:
  best day:
    date: 2026-08-04
    score: 18
    category: Poor
    explanation: Best day in the forecast: 2026-08-04 with a score of 18/100 (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: 18
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 7
        out of: 25
        explanation: Poor alignment: Swell from 310° is 40° off optimal 350°, barely within workable range 320°-20°.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 0.3m is below minimum 0.6m. Waves will be weak/mushy.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 7s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 17
        out of: 25
        explanation: Onshore/cross-shore: 7 km/h from 69° (ENE). Destroying wave quality. Offshore range: 150°-210°.
    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 Calle 70. Either swell direction (310°), size (0.3m), or wind (7 km/h from 69°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.3
      height ft: 1.0
      direction degrees: 310
      direction cardinal: NW
      period s: 7
      explanation: 0.3m (1.0ft) swell from 310° (NW) at 7s period
    wind:
      speed kmh: 7
      speed mph: 4.3
      direction degrees: 69
      direction cardinal: ENE
      explanation: 7 km/h (4 mph) from 69° (ENE)
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 68° is outside workable range 320°-20°. Wrong swell direction for this spot.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 0.3m is below minimum 0.6m. Waves will be weak/mushy.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 6s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 9
        out of: 25
        explanation: Onshore/cross-shore: 11 km/h from 69° (ENE). Destroying wave quality. Offshore range: 150°-210°.
    adjustments:
      wind history:
        adjustment: 0
        groomed: false
        morning sickness: false
        explanation: No significant wind history adjustment.
      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 Calle 70. Either swell direction (68°), size (0.3m), or wind (11 km/h from 69°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.3
      height ft: 1.0
      direction degrees: 68
      direction cardinal: ENE
      period s: 6
      explanation: 0.3m (1.0ft) swell from 68° (ENE) at 6s period
    wind:
      speed kmh: 11
      speed mph: 6.8
      direction degrees: 69
      direction cardinal: ENE
      explanation: 11 km/h (7 mph) from 69° (ENE)
forecasts:
  date: 2026-08-06
  day index: 2
  strike score:
    final score: 0
    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 57° is outside workable range 320°-20°. Wrong swell direction for this spot.
      swell size:
        score: 8
        out of: 25
        explanation: Marginal size: 0.6m is 0.7m from ideal 1.3m.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 4s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 9
        out of: 25
        explanation: Onshore/cross-shore: 11 km/h from 66° (ENE). Destroying wave quality. Offshore range: 150°-210°.
    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 Calle 70. Either swell direction (57°), size (0.6m), or wind (11 km/h from 66°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.6
      height ft: 2.0
      direction degrees: 57
      direction cardinal: ENE
      period s: 4
      explanation: 0.6m (2.0ft) swell from 57° (ENE) at 4s period
    wind:
      speed kmh: 11
      speed mph: 6.8
      direction degrees: 66
      direction cardinal: ENE
      explanation: 11 km/h (7 mph) from 66° (ENE)
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 3
    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 59° is outside workable range 320°-20°. Wrong swell direction for this spot.
      swell size:
        score: 8
        out of: 25
        explanation: Marginal size: 0.6m is 0.7m from ideal 1.3m.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 5s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 14
        out of: 25
        explanation: Onshore/cross-shore: 8 km/h from 71° (ENE). Destroying wave quality. Offshore range: 150°-210°.
    summary: Poor conditions at Calle 70. Either swell direction (59°), size (0.6m), or wind (8 km/h from 71°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T03:13:58.017Z
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: 0.6
  height ft: 2.0
  direction degrees: 59
  direction cardinal: ENE
  period s: 5
  explanation: 0.6m (2.0ft) swell from 59° (ENE) at 5s period
wind:
  speed kmh: 8
  speed mph: 5.0
  direction degrees: 71
  direction cardinal: ENE
  explanation: 8 km/h (5 mph) from 71° (ENE)

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 62° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.4m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 5s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 13
      out of: 25
      explanation: Onshore/cross-shore: 8 km/h from 57° (ENE). Destroying wave quality. Offshore range: 150°-210°.
  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 Calle 70. Either swell direction (62°), size (0.4m), or wind (8 km/h from 57°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.4
    height ft: 1.3
    direction degrees: 62
    direction cardinal: ENE
    period s: 5
    explanation: 0.4m (1.3ft) swell from 62° (ENE) at 5s period
  wind:
    speed kmh: 8
    speed mph: 5.0
    direction degrees: 57
    direction cardinal: ENE
    explanation: 8 km/h (5 mph) from 57° (ENE)

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 67° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.3m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 0
      out of: 25
      explanation: Short period: 4s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 7
      out of: 25
      explanation: Onshore/cross-shore: 12 km/h from 69° (ENE). Destroying wave quality. Offshore range: 150°-210°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 Calle 70. Either swell direction (67°), size (0.3m), or wind (12 km/h from 69°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.3
    height ft: 1.0
    direction degrees: 67
    direction cardinal: ENE
    period s: 4
    explanation: 0.3m (1.0ft) swell from 67° (ENE) at 4s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 69
    direction cardinal: ENE
    explanation: 12 km/h (7 mph) from 69° (ENE)
  windswell:
    height m: 0.4
    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 75° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.3m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 6s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 10 km/h from 74° (ENE). Destroying wave quality. Offshore range: 150°-210°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    windswell penalty:
      adjustment: -10
      windswell degraded: true
      explanation: -10 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Calle 70. Either swell direction (75°), size (0.3m), or wind (10 km/h from 74°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.3
    height ft: 1.0
    direction degrees: 75
    direction cardinal: ENE
    period s: 6
    explanation: 0.3m (1.0ft) swell from 75° (ENE) at 6s period
  wind:
    speed kmh: 10
    speed mph: 6.2
    direction degrees: 74
    direction cardinal: ENE
    explanation: 10 km/h (6 mph) from 74° (ENE)
  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: 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 63° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.5m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 5s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 85° (E). Destroying wave quality. Offshore range: 150°-210°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 Calle 70. Either swell direction (63°), size (0.5m), or wind (13 km/h from 85°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 63
    direction cardinal: ENE
    period s: 5
    explanation: 0.5m (1.6ft) swell from 63° (ENE) at 5s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 85
    direction cardinal: E
    explanation: 13 km/h (8 mph) from 85° (E)
  windswell:
    height m: 0.5
    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 74° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.5m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 5s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 15 km/h from 59° (ENE). Destroying wave quality. Offshore range: 150°-210°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 Calle 70. Either swell direction (74°), size (0.5m), or wind (15 km/h from 59°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 74
    direction cardinal: ENE
    period s: 5
    explanation: 0.5m (1.6ft) swell from 74° (ENE) at 5s period
  wind:
    speed kmh: 15
    speed mph: 9.3
    direction degrees: 59
    direction cardinal: ENE
    explanation: 15 km/h (9 mph) from 59° (ENE)
  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 59° is outside workable range 320°-20°. Wrong swell direction for this spot.
    swell size:
      score: 3
      out of: 25
      explanation: Too small: 0.5m is below minimum 0.6m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 5s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 17
      out of: 25
      explanation: Onshore/cross-shore: 7 km/h from 75° (ENE). Destroying wave quality. Offshore range: 150°-210°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    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 Calle 70. Either swell direction (59°), size (0.5m), or wind (7 km/h from 75°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 59
    direction cardinal: ENE
    period s: 5
    explanation: 0.5m (1.6ft) swell from 59° (ENE) at 5s period
  wind:
    speed kmh: 7
    speed mph: 4.3
    direction degrees: 75
    direction cardinal: ENE
    explanation: 7 km/h (4 mph) from 75° (ENE)
  windswell:
    height m: 0.6
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization