Surf Forecast for Port Bharrapol
type: Dataset
description: 10-day surf forecast with Strike Scores for Port Bharrapol, Tiree, Inner Hebrides, UK
about: Port Bharrapol
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 56.47172
    longitude: -6.98018
  description: Port Bharrapol sits on Tiree--the windiest island in Britain and one of its most unlikely surf destinations.
summary:
  best day:
    date: 2026-08-10
    score: 34
    category: Poor
    explanation: Best day in the forecast: 2026-08-10 with a score of 34/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 14/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 5
    category: Poor
    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 287° is 7° off optimal 280°, still within prime range.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.4m is below minimum 0.9m. Waves will be weak/mushy.
      swell period:
        score: 7
        out of: 25
        explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 35 km/h from 325° (NW). Destroying wave quality. Offshore range: 60°-135°.
    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 Port Bharrapol. Either swell direction (287°), size (0.4m), or wind (35 km/h from 325°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.4
      height ft: 1.3
      direction degrees: 287
      direction cardinal: WNW
      period s: 9
      peak period s: 8.7
      explanation: 0.4m (1.3ft) swell from 287° (WNW) at 8.7s period
    wind:
      speed kmh: 35
      speed mph: 21.7
      direction degrees: 325
      direction cardinal: NW
      explanation: 35 km/h (22 mph) from 325° (NW)
    windswell:
      height m: 1.7
      period s: 5
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-06
  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: 21
        out of: 25
        explanation: Good alignment: Swell from 287° is 7° off optimal 280°, still within prime range.
      swell size:
        score: 8
        out of: 25
        explanation: Marginal size: 0.9m is 0.8m from ideal 1.7m.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 8s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 16 km/h from 283° (WNW). Destroying wave quality. Offshore range: 60°-135°.
    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 Port Bharrapol. Either swell direction (287°), size (0.9m), or wind (16 km/h from 283°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 287
      direction cardinal: WNW
      period s: 8
      peak period s: 7.6
      explanation: 0.9m (3.0ft) swell from 287° (WNW) at 7.6s period
    wind:
      speed kmh: 16
      speed mph: 9.9
      direction degrees: 283
      direction cardinal: WNW
      explanation: 16 km/h (10 mph) from 283° (WNW)
    windswell:
      height m: 0.4
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 25
    category: Poor
    category emoji: 💤
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 24
        out of: 25
        explanation: Perfect alignment: Swell from 279° is within 5° of optimal 280°.
      swell size:
        score: 17
        out of: 25
        explanation: Marginal size: 1.7m is 0.0m from ideal 1.7m.
      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: 45 km/h from 228° (SW). Destroying wave quality. Offshore range: 60°-135°.
    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: -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 Port Bharrapol. Either swell direction (279°), size (1.7m), or wind (45 km/h from 228°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1.7
      height ft: 5.6
      direction degrees: 279
      direction cardinal: W
      period s: 8
      peak period s: 8.3
      explanation: 1.7m (5.6ft) swell from 279° (W) at 8.3s period
    wind:
      speed kmh: 45
      speed mph: 28.0
      direction degrees: 228
      direction cardinal: SW
      explanation: 45 km/h (28 mph) from 228° (SW)
    windswell:
      height m: 1.5
      period s: 5
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 15
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Port Bharrapol. Either swell direction (261°), size (2.2m), or wind (30 km/h from 229°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T03:13:54.541Z
temporal coverage: 2026-08-05/2026-08-14
data sources: Open-Meteo Marine API (swell/wave data)
data sources: Open-Meteo Weather API (wind/weather data)

swell direction:
  score: 16
  out of: 25
  explanation: Moderate alignment: Swell from 261° is 19° off optimal 280°, workable but not ideal.
swell size:
  score: 20
  out of: 25
  explanation: Good size: 2.2m is within 15% of ideal 1.7m.
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: 30 km/h from 229° (SW). Destroying wave quality. Offshore range: 60°-135°.

wind history:
  adjustment: -14
  groomed: false
  morning sickness: true
  explanation: -14 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.

swell:
  height m: 2.2
  height ft: 7.2
  direction degrees: 261
  direction cardinal: W
  period s: 8
  explanation: 2.2m (7.2ft) swell from 261° (W) at 8s period
wind:
  speed kmh: 30
  speed mph: 18.6
  direction degrees: 229
  direction cardinal: SW
  explanation: 30 km/h (19 mph) from 229° (SW)
windswell:
  height m: 1.2
  period s: 4
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 4
strike score:
  final score: 13
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 18
      out of: 25
      explanation: Moderate alignment: Swell from 266° is 14° off optimal 280°, 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: 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: 32 km/h from 270° (W). Destroying wave quality. Offshore range: 60°-135°.
  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: -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 Port Bharrapol. Either swell direction (266°), size (1.8m), or wind (32 km/h from 270°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.8
    height ft: 5.9
    direction degrees: 266
    direction cardinal: W
    period s: 8
    explanation: 1.8m (5.9ft) swell from 266° (W) at 8s period
  wind:
    speed kmh: 32
    speed mph: 19.9
    direction degrees: 270
    direction cardinal: W
    explanation: 32 km/h (20 mph) from 270° (W)
  windswell:
    height m: 1.1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 5
strike score:
  final score: 34
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 25
      out of: 25
      explanation: Perfect alignment: Swell from 280° is within 5° of optimal 280°.
    swell size:
      score: 23
      out of: 25
      explanation: Good size: 2.1m is within 15% of ideal 1.7m.
    swell period:
      score: 14
      out of: 25
      explanation: Moderate period: 10s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 20 km/h from 4° (N). Destroying wave quality. Offshore range: 60°-135°.
  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 Port Bharrapol. Either swell direction (280°), size (2.1m), or wind (20 km/h from 4°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.1
    height ft: 6.9
    direction degrees: 280
    direction cardinal: W
    period s: 10
    explanation: 2.1m (6.9ft) swell from 280° (W) at 10s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 4
    direction cardinal: N
    explanation: 20 km/h (12 mph) from 4° (N)
  windswell:
    height m: 1.4
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 6
strike score:
  final score: 14
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 24
      out of: 25
      explanation: Perfect alignment: Swell from 282° is within 5° of optimal 280°.
    swell size:
      score: 12
      out of: 25
      explanation: Marginal size: 1.3m is 0.4m from ideal 1.7m.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 8s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 31 km/h from 158° (SSE). Destroying wave quality. Offshore range: 60°-135°.
  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: -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 Port Bharrapol. Either swell direction (282°), size (1.3m), or wind (31 km/h from 158°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.3
    height ft: 4.3
    direction degrees: 282
    direction cardinal: WNW
    period s: 8
    explanation: 1.3m (4.3ft) swell from 282° (WNW) at 8s period
  wind:
    speed kmh: 31
    speed mph: 19.3
    direction degrees: 158
    direction cardinal: SSE
    explanation: 31 km/h (19 mph) from 158° (SSE)
  secondary swell:
    height m: 0.4
    direction degrees: 250
    direction cardinal: WSW
    period s: 7
  windswell:
    height m: 1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 7
strike score:
  final score: 19
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 10
      out of: 25
      explanation: Moderate alignment: Swell from 242° is 38° off optimal 280°, 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: 23
      out of: 25
      explanation: Good period: 11s is 92% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 35 km/h from 195° (SSW). Destroying wave quality. Offshore range: 60°-135°.
  adjustments:
    wind history:
      adjustment: -14
      groomed: false
      morning sickness: true
      explanation: -14 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 Port Bharrapol. Either swell direction (242°), size (1.8m), or wind (35 km/h from 195°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.8
    height ft: 5.9
    direction degrees: 242
    direction cardinal: WSW
    period s: 11
    explanation: 1.8m (5.9ft) swell from 242° (WSW) at 11s period
  wind:
    speed kmh: 35
    speed mph: 21.7
    direction degrees: 195
    direction cardinal: SSW
    explanation: 35 km/h (22 mph) from 195° (SSW)
  windswell:
    height m: 1.7
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 8
strike score:
  final score: 9
  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 262° is 18° off optimal 280°, workable but not ideal.
    swell size:
      score: 11
      out of: 25
      explanation: Too big: 2.8m exceeds maximum 2.5m. Risk of closeouts.
    swell period:
      score: 14
      out of: 25
      explanation: Moderate period: 10s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 27 km/h from 261° (W). Destroying wave quality. Offshore range: 60°-135°.
  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: 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 Port Bharrapol. Either swell direction (262°), size (2.8m), or wind (27 km/h from 261°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.8
    height ft: 9.2
    direction degrees: 262
    direction cardinal: W
    period s: 10
    explanation: 2.8m (9.2ft) swell from 262° (W) at 10s period
  wind:
    speed kmh: 27
    speed mph: 16.8
    direction degrees: 261
    direction cardinal: W
    explanation: 27 km/h (17 mph) from 261° (W)
  secondary swell:
    height m: 0.4
    direction degrees: 251
    direction cardinal: WSW
    period s: 13
  windswell:
    height m: 1.1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-14
day index: 9
strike score:
  final score: 2
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 13
      out of: 25
      explanation: Moderate alignment: Swell from 255° is 25° off optimal 280°, 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: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 12 km/h from 248° (WSW). Destroying wave quality. Offshore range: 60°-135°.
  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: Poor conditions at Port Bharrapol. Either swell direction (255°), size (0.9m), or wind (12 km/h from 248°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.9
    height ft: 3.0
    direction degrees: 255
    direction cardinal: WSW
    period s: 9
    explanation: 0.9m (3.0ft) swell from 255° (WSW) at 9s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 248
    direction cardinal: WSW
    explanation: 12 km/h (7 mph) from 248° (WSW)

Strike Mission
type: Organization