Surf Forecast for Yacht Club
type: Dataset
description: 10-day surf forecast with Strike Scores for Yacht Club, Mar del Plata, Argentina
about: Yacht Club
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -38.025
    longitude: -57.5417
  description: Yacht Club is Mar del Plata's quality right-hand point, offering protection from the cold S winds that plague the region in winter. The wave breaks along a rocky headland near the famous yacht club, producing longer rides than the nearby beach breaks. Cold water and offshore winds make it challenging but rewarding.
summary:
  best day:
    date: 2026-08-12
    score: 60
    category: Fair
    explanation: Best day in the forecast: 2026-08-12 with a score of 60/100 (Fair)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 25/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 49
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 11
        out of: 25
        explanation: Moderate alignment: Swell from 132° is 25° off optimal 157°, workable but not ideal.
      swell size:
        score: 12
        out of: 25
        explanation: Marginal size: 1.3m is 0.4m from ideal 1.7m.
      swell period:
        score: 8
        out of: 25
        explanation: Moderate period: 11s meets minimum 10s but below ideal 14s. Some groundswell energy present.
      wind:
        score: 18
        out of: 25
        explanation: Onshore/cross-shore: 5 km/h from 38° (NE). Destroying wave quality. Offshore range: 135°-225°.
    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 Yacht Club. The 1.3m swell from 132° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 1.3
      height ft: 4.3
      direction degrees: 132
      direction cardinal: SE
      period s: 11
      explanation: 1.3m (4.3ft) swell from 132° (SE) at 11s period
    wind:
      speed kmh: 5
      speed mph: 3.1
      direction degrees: 38
      direction cardinal: NE
      explanation: 5 km/h (3 mph) from 38° (NE)
    secondary swell:
      height m: 0.4
      direction degrees: 71
      direction cardinal: ENE
      period s: 5
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 19
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 10
        out of: 25
        explanation: Moderate alignment: Swell from 129° is 28° off optimal 157°, workable but not ideal.
      swell size:
        score: 3
        out of: 25
        explanation: Too small: 0.7m is below minimum 0.9m. 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: 13
        out of: 25
        explanation: Onshore/cross-shore: 8 km/h from 33° (NNE). Destroying wave quality. Offshore range: 135°-225°.
    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 Yacht Club. Either swell direction (129°), size (0.7m), or wind (8 km/h from 33°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.7
      height ft: 2.3
      direction degrees: 129
      direction cardinal: SE
      period s: 10
      explanation: 0.7m (2.3ft) swell from 129° (SE) at 10s period
    wind:
      speed kmh: 8
      speed mph: 5.0
      direction degrees: 33
      direction cardinal: NNE
      explanation: 8 km/h (5 mph) from 33° (NNE)
    secondary swell:
      height m: 0.4
      direction degrees: 73
      direction cardinal: ENE
      period s: 6
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 95° is outside workable range 135°-200°. Wrong swell direction for this spot.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 0.5m is below minimum 0.9m. 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: 21
        out of: 25
        explanation: Moderate offshore: 18 km/h from 159° (SSE). Still grooming but noticeable wind.
    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 Yacht Club. Either swell direction (95°), size (0.5m), or wind (18 km/h from 159°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.5
      height ft: 1.6
      direction degrees: 95
      direction cardinal: E
      period s: 8
      explanation: 0.5m (1.6ft) swell from 95° (E) at 8s period
    wind:
      speed kmh: 18
      speed mph: 11.2
      direction degrees: 159
      direction cardinal: SSE
      explanation: 18 km/h (11 mph) from 159° (SSE)
    windswell:
      height m: 0.5
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 19
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 15
        out of: 25
        explanation: Moderate alignment: Swell from 173° is 16° off optimal 157°, workable but not ideal.
    summary: Poor conditions at Yacht Club. Either swell direction (173°), size (1.1m), or wind (13 km/h from 282°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T01:50:15.928Z
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: 10
out of: 25
explanation: Marginal size: 1.1m is 0.6m from ideal 1.7m.

score: 2
out of: 25
explanation: Short period: 7s is below minimum 10s. Windswell-dominated (choppy, weak waves).

score: 5
out of: 25
explanation: Onshore/cross-shore: 13 km/h from 282° (WNW). Destroying wave quality. Offshore range: 135°-225°.

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: 1.1
  height ft: 3.6
  direction degrees: 173
  direction cardinal: S
  period s: 7
  explanation: 1.1m (3.6ft) swell from 173° (S) at 7s period
wind:
  speed kmh: 13
  speed mph: 8.1
  direction degrees: 282
  direction cardinal: WNW
  explanation: 13 km/h (8 mph) from 282° (WNW)

date: 2026-08-08
day index: 4
strike score:
  final score: 3
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 12
      out of: 25
      explanation: Moderate alignment: Swell from 179° is 22° off optimal 157°, workable but not ideal.
    swell size:
      score: 8
      out of: 25
      explanation: Marginal size: 0.9m is 0.8m from ideal 1.7m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 11s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 28 km/h from 273° (W). Destroying wave quality. Offshore range: 135°-225°.
  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 Yacht Club. Either swell direction (179°), size (0.9m), or wind (28 km/h from 273°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 179
    direction cardinal: S
    period s: 11
    explanation: 0.9m (3.0ft) swell from 179° (S) at 11s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 273
    direction cardinal: W
    explanation: 28 km/h (17 mph) from 273° (W)
  windswell:
    height m: 1.2
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

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: 7
      out of: 25
      explanation: Poor alignment: Swell from 196° is 39° off optimal 157°, barely within workable range 135°-200°.
    swell size:
      score: 8
      out of: 25
      explanation: Marginal size: 0.9m is 0.8m from ideal 1.7m.
    swell period:
      score: 14
      out of: 25
      explanation: Moderate period: 12s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 31 km/h from 244° (WSW). Destroying wave quality. Offshore range: 135°-225°.
  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: -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 Yacht Club. Either swell direction (196°), size (0.9m), or wind (31 km/h from 244°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 196
    direction cardinal: SSW
    period s: 12
    explanation: 0.9m (3.0ft) swell from 196° (SSW) at 12s period
  wind:
    speed kmh: 31
    speed mph: 19.3
    direction degrees: 244
    direction cardinal: WSW
    explanation: 31 km/h (19 mph) from 244° (WSW)
  secondary swell:
    height m: 0.4
    direction degrees: 163
    direction cardinal: SSE
    period s: 8
  windswell:
    height m: 1.7
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 6
strike score:
  final score: 10
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 12
      out of: 25
      explanation: Moderate alignment: Swell from 179° is 22° off optimal 157°, workable but not ideal.
    swell size:
      score: 21
      out of: 25
      explanation: Good size: 1.9m is within 15% of ideal 1.7m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 11s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 23 km/h from 232° (SW). Destroying wave quality. Offshore range: 135°-225°.
  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: -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 Yacht Club. Either swell direction (179°), size (1.9m), or wind (23 km/h from 232°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.9
    height ft: 6.2
    direction degrees: 179
    direction cardinal: S
    period s: 11
    explanation: 1.9m (6.2ft) swell from 179° (S) at 11s period
  wind:
    speed kmh: 23
    speed mph: 14.3
    direction degrees: 232
    direction cardinal: SW
    explanation: 23 km/h (14 mph) from 232° (SW)
  secondary swell:
    height m: 0.4
    direction degrees: 157
    direction cardinal: SSE
    period s: 9
  windswell:
    height m: 1.7
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 54
  category: Fair
  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 171° is 14° off optimal 157°, workable but not ideal.
    swell size:
      score: 23
      out of: 25
      explanation: Good size: 2.1m is within 15% of ideal 1.7m.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 13s is 93% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 17
      out of: 25
      explanation: Moderate offshore: 10 km/h from 221° (SW). Still grooming but noticeable wind.
  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: 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 Yacht Club. The 2.1m swell from 171° 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: 171
    direction cardinal: S
    period s: 13
    explanation: 2.1m (6.9ft) swell from 171° (S) at 13s period
  wind:
    speed kmh: 10
    speed mph: 6.2
    direction degrees: 221
    direction cardinal: SW
    explanation: 10 km/h (6 mph) from 221° (SW)

date: 2026-08-12
day index: 8
strike score:
  final score: 60
  category: Fair
  category emoji: 😐
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 19
      out of: 25
      explanation: Moderate alignment: Swell from 165° is 8° off optimal 157°, workable but not ideal.
    swell size:
      score: 19
      out of: 25
      explanation: Marginal size: 1.8m is 0.1m from ideal 1.7m.
    swell period:
      score: 14
      out of: 25
      explanation: Moderate period: 12s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 22
      out of: 25
      explanation: Light offshore: 6 km/h from 141° (SE). Grooming the wave face beautifully.
  adjustments:
    wind history:
      adjustment: -11
      groomed: false
      morning sickness: true
      explanation: -11 points: Previous days of onshore wind left residual chop ("morning sickness"), reducing wave quality.
    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 Yacht Club. The 1.8m swell from 165° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 1.8
    height ft: 5.9
    direction degrees: 165
    direction cardinal: SSE
    period s: 12
    explanation: 1.8m (5.9ft) swell from 165° (SSE) at 12s period
  wind:
    speed kmh: 6
    speed mph: 3.7
    direction degrees: 141
    direction cardinal: SE
    explanation: 6 km/h (4 mph) from 141° (SE)

date: 2026-08-13
day index: 9
strike score:
  final score: 39
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 22
      out of: 25
      explanation: Good alignment: Swell from 161° is 4° off optimal 157°, still within prime range.
    swell size:
      score: 12
      out of: 25
      explanation: Marginal size: 1.3m is 0.4m from ideal 1.7m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 11s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    wind:
      score: 6
      out of: 25
      explanation: Onshore/cross-shore: 12 km/h from 51° (NE). Destroying wave quality. Offshore range: 135°-225°.
  adjustments:
    wind history:
      adjustment: -4
      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 Yacht Club. Either swell direction (161°), size (1.3m), or wind (12 km/h from 51°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.3
    height ft: 4.3
    direction degrees: 161
    direction cardinal: SSE
    period s: 11
    explanation: 1.3m (4.3ft) swell from 161° (SSE) at 11s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 51
    direction cardinal: NE
    explanation: 12 km/h (7 mph) from 51° (NE)
  secondary swell:
    height m: 0.4
    direction degrees: 133
    direction cardinal: SE
    period s: 8

Strike Mission
type: Organization