Surf Forecast for Rest Bay
type: Dataset
description: 10-day surf forecast with Strike Scores for Rest Bay, Porthcawl, South Wales, UK
about: Rest Bay
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 51.4833
    longitude: -3.7167
  description: Rest Bay is the most consistent break in Porthcawl's varied lineup--a broad sandy beach that picks up SW swells.
summary:
  best day:
    date: 2026-08-13
    score: 7
    category: Poor
    explanation: Best day in the forecast: 2026-08-13 with a score of 7/100 (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: 2
    category: Poor
    category emoji: 💤
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 12
        out of: 25
        explanation: Moderate alignment: Swell from 248° is 23° off optimal 225°, workable but not ideal.
      swell size:
        score: 8
        out of: 25
        explanation: Marginal size: 0.8m is 0.8m from ideal 1.6m.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 7s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 2
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 229° (SW). Destroying wave quality. Offshore range: 20°-80°.
    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 Rest Bay. Either swell direction (248°), size (0.8m), or wind (14 km/h from 229°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.8
      height ft: 2.6
      direction degrees: 248
      direction cardinal: WSW
      period s: 7
      peak period s: 6.7
      explanation: 0.8m (2.6ft) swell from 248° (WSW) at 6.7s period
    wind:
      speed kmh: 14
      speed mph: 8.7
      direction degrees: 229
      direction cardinal: SW
      explanation: 14 km/h (9 mph) from 229° (SW)
    windswell:
      height m: 0.5
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
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: 15
        out of: 25
        explanation: Moderate alignment: Swell from 241° is 16° off optimal 225°, workable but not ideal.
      swell size:
        score: 3
        out of: 25
        explanation: Too small: 0.6m is below minimum 0.8m. 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: 0
        out of: 25
        explanation: Onshore/cross-shore: 32 km/h from 278° (W). Destroying wave quality. Offshore range: 20°-80°.
    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 Rest Bay. Either swell direction (241°), size (0.6m), or wind (32 km/h from 278°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.6
      height ft: 2.0
      direction degrees: 241
      direction cardinal: WSW
      period s: 7
      peak period s: 7.3
      explanation: 0.6m (2.0ft) swell from 241° (WSW) at 7.3s period
    wind:
      speed kmh: 32
      speed mph: 19.9
      direction degrees: 278
      direction cardinal: W
      explanation: 32 km/h (20 mph) from 278° (W)
    windswell:
      height m: 1.3
      period s: 4
      explanation: Local wind-generated waves (choppy, short-period)
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: 8
        out of: 25
        explanation: Poor alignment: Swell from 259° is 34° off optimal 225°, barely within workable range 200°-270°.
      swell size:
        score: 8
        out of: 25
        explanation: Marginal size: 0.8m is 0.8m from ideal 1.6m.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 7s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 24 km/h from 285° (WNW). Destroying wave quality. Offshore range: 20°-80°.
    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: -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 Rest Bay. Either swell direction (259°), size (0.8m), or wind (24 km/h from 285°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.8
      height ft: 2.6
      direction degrees: 259
      direction cardinal: W
      period s: 7
      peak period s: 7.1
      explanation: 0.8m (2.6ft) swell from 259° (W) at 7.1s period
    wind:
      speed kmh: 24
      speed mph: 14.9
      direction degrees: 285
      direction cardinal: WNW
      explanation: 24 km/h (15 mph) from 285° (WNW)
    windswell:
      height m: 0.6
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 0
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Rest Bay. Either swell direction (260°), size (0.3m), or wind (9 km/h from 221°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T03:12:26.605Z
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)

swell direction:
  score: 8
  out of: 25
  explanation: Poor alignment: Swell from 260° is 35° off optimal 225°, barely within workable range 200°-270°.
swell size:
  score: 1
  out of: 25
  explanation: Too small: 0.3m is below minimum 0.8m. Waves will be weak/mushy.
swell period:
  score: 9
  out of: 25
  explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
wind:
  score: 11
  out of: 25
  explanation: Onshore/cross-shore: 9 km/h from 221° (SW). Destroying wave quality. Offshore range: 20°-80°.

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: 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: 0.3
  height ft: 1.0
  direction degrees: 260
  direction cardinal: W
  period s: 9
  peak period s: 9.3
  explanation: 0.3m (1.0ft) swell from 260° (W) at 9.3s period
wind:
  speed kmh: 9
  speed mph: 5.6
  direction degrees: 221
  direction cardinal: SW
  explanation: 9 km/h (6 mph) from 221° (SW)

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: 9
      out of: 25
      explanation: Poor alignment: Swell from 255° is 30° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.2m is below minimum 0.8m. 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: 9 km/h from 207° (SSW). Destroying wave quality. Offshore range: 20°-80°.
  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: Poor conditions at Rest Bay. Either swell direction (255°), size (0.2m), or wind (9 km/h from 207°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.2
    height ft: 0.7
    direction degrees: 255
    direction cardinal: WSW
    period s: 6
    explanation: 0.2m (0.7ft) swell from 255° (WSW) at 6s period
  wind:
    speed kmh: 9
    speed mph: 5.6
    direction degrees: 207
    direction cardinal: SSW
    explanation: 9 km/h (6 mph) from 207° (SSW)

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: 8
      out of: 25
      explanation: Poor alignment: Swell from 258° is 33° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 0.3m is below minimum 0.8m. 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: 0
      out of: 25
      explanation: Onshore/cross-shore: 22 km/h from 268° (W). Destroying wave quality. Offshore range: 20°-80°.
  adjustments:
    wind history:
      adjustment: -4
      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 Rest Bay. Either swell direction (258°), size (0.3m), or wind (22 km/h from 268°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.3
    height ft: 1.0
    direction degrees: 258
    direction cardinal: WSW
    period s: 7
    explanation: 0.3m (1.0ft) swell from 258° (WSW) at 7s period
  wind:
    speed kmh: 22
    speed mph: 13.7
    direction degrees: 268
    direction cardinal: W
    explanation: 22 km/h (14 mph) from 268° (W)
  windswell:
    height m: 0.8
    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: 8
      out of: 25
      explanation: Poor alignment: Swell from 258° is 33° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 0.9m is 0.7m from ideal 1.6m.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 6s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 17 km/h from 288° (WNW). Destroying wave quality. Offshore range: 20°-80°.
  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 Rest Bay. Either swell direction (258°), size (0.9m), or wind (17 km/h from 288°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 258
    direction cardinal: WSW
    period s: 6
    explanation: 0.9m (3.0ft) swell from 258° (WSW) at 6s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 288
    direction cardinal: WNW
    explanation: 17 km/h (11 mph) from 288° (WNW)
  windswell:
    height m: 0.4
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 6
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 8
      out of: 25
      explanation: Poor alignment: Swell from 260° is 35° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.5m is below minimum 0.8m. 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: 16
      out of: 25
      explanation: Onshore/cross-shore: 9 km/h from 125° (SE). Destroying wave quality. Offshore range: 20°-80°.
  adjustments:
    wind history:
      adjustment: -7
      groomed: false
      morning sickness: true
      explanation: -7 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: Poor conditions at Rest Bay. Either swell direction (260°), size (0.5m), or wind (9 km/h from 125°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 260
    direction cardinal: W
    period s: 6
    explanation: 0.5m (1.6ft) swell from 260° (W) at 6s period
  wind:
    speed kmh: 9
    speed mph: 5.6
    direction degrees: 125
    direction cardinal: SE
    explanation: 9 km/h (6 mph) from 125° (SE)

date: 2026-08-12
day index: 8
strike score:
  final score: 3
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 8
      out of: 25
      explanation: Poor alignment: Swell from 258° is 33° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 5
      out of: 25
      explanation: Too small: 0.7m is below minimum 0.8m. 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: 4
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 206° (SSW). Destroying wave quality. Offshore range: 20°-80°.
  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 Rest Bay. Either swell direction (258°), size (0.7m), or wind (13 km/h from 206°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 258
    direction cardinal: WSW
    period s: 7
    explanation: 0.7m (2.3ft) swell from 258° (WSW) at 7s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 206
    direction cardinal: SSW
    explanation: 13 km/h (8 mph) from 206° (SSW)

date: 2026-08-13
day index: 9
strike score:
  final score: 7
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 8
      out of: 25
      explanation: Poor alignment: Swell from 260° is 35° off optimal 225°, barely within workable range 200°-270°.
    swell size:
      score: 13
      out of: 25
      explanation: Marginal size: 1.3m is 0.3m from ideal 1.6m.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 8s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 22 km/h from 253° (WSW). Destroying wave quality. Offshore range: 20°-80°.
  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 Rest Bay. Either swell direction (260°), size (1.3m), or wind (22 km/h from 253°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.3
    height ft: 4.3
    direction degrees: 260
    direction cardinal: W
    period s: 8
    explanation: 1.3m (4.3ft) swell from 260° (W) at 8s period
  wind:
    speed kmh: 22
    speed mph: 13.7
    direction degrees: 253
    direction cardinal: WSW
    explanation: 22 km/h (14 mph) from 253° (WSW)
  windswell:
    height m: 1.1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization