Surf Forecast for Jialeshuei
type: Dataset
description: 10-day surf forecast with Strike Scores for Jialeshuei, Kenting, Taiwan
about: Jialeshuei
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 21.983
    longitude: 120.867
  description: Jialeshuei is Taiwan's most consistent surf spot—a south-facing beach break in the Kenting National Park area that catches virtually every swell direction. The setup produces fun, punchy peaks year-round, with typhoon season (autumn) bringing the best conditions. Taiwan's surf scene is small but passionate, and Jialeshuei is its spiritual home. The backdrop is stunning—tropical forests meeting volcanic rock formations. Asian surfing's best-kept secret.
summary:
  best day:
    date: 2026-08-05
    score: 60
    category: Fair
    explanation: Best day in the forecast: 2026-08-05 with a score of 60/100 (Fair)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 16/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 60
    category: Fair
    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 90° is outside workable range 135°-195°. Wrong swell direction for this spot.
      swell size:
        score: 22
        out of: 25
        explanation: Good size: 2.1m is within 15% of ideal 1.6m.
      swell period:
        score: 25
        out of: 25
        explanation: Perfect period: 12s is at or above ideal 12s. Long-period groundswell with maximum power.
      wind:
        score: 18
        out of: 25
        explanation: Onshore/cross-shore: 5 km/h from 136° (SE). Destroying wave quality. Offshore range: 315°-45°.
    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 Jialeshuei. The 2.1m swell from 90° 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: 90
      direction cardinal: E
      period s: 12
      explanation: 2.1m (6.9ft) swell from 90° (E) at 12s period
    wind:
      speed kmh: 5
      speed mph: 3.1
      direction degrees: 136
      direction cardinal: SE
      explanation: 5 km/h (3 mph) from 136° (SE)
    secondary swell:
      height m: 0.4
      direction degrees: 166
      direction cardinal: SSE
      period s: 5
forecasts:
  date: 2026-08-06
  day index: 1
  strike score:
    final score: 38
    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 77° is outside workable range 135°-195°. Wrong swell direction for this spot.
      swell size:
        score: 18
        out of: 25
        explanation: Marginal size: 2.4m is 0.8m from ideal 1.6m.
      swell period:
        score: 25
        out of: 25
        explanation: Perfect period: 13s is at or above ideal 12s. Long-period groundswell with maximum power.
      wind:
        score: 5
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 295° (WNW). Destroying wave quality. Offshore range: 315°-45°.
    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 Jialeshuei. Either swell direction (77°), size (2.4m), or wind (14 km/h from 295°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 2.4
      height ft: 7.9
      direction degrees: 77
      direction cardinal: ENE
      period s: 13
      explanation: 2.4m (7.9ft) swell from 77° (ENE) at 13s period
    wind:
      speed kmh: 14
      speed mph: 8.7
      direction degrees: 295
      direction cardinal: WNW
      explanation: 14 km/h (9 mph) from 295° (WNW)
    secondary swell:
      height m: 0.7
      direction degrees: 159
      direction cardinal: SSE
      period s: 8
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 19
    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 61° is outside workable range 135°-195°. Wrong swell direction for this spot.
      swell size:
        score: 9
        out of: 25
        explanation: Too big: 2.9m exceeds maximum 2.5m. Risk of closeouts.
      swell period:
        score: 25
        out of: 25
        explanation: Perfect period: 14s is at or above ideal 12s. Long-period groundswell with maximum power.
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 33 km/h from 286° (WNW). Destroying wave quality. Offshore range: 315°-45°.
    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 Jialeshuei. Either swell direction (61°), size (2.9m), or wind (33 km/h from 286°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 2.9
      height ft: 9.5
      direction degrees: 61
      direction cardinal: ENE
      period s: 14
      explanation: 2.9m (9.5ft) swell from 61° (ENE) at 14s period
    wind:
      speed kmh: 33
      speed mph: 20.5
      direction degrees: 286
      direction cardinal: WNW
      explanation: 33 km/h (21 mph) from 286° (WNW)
    secondary swell:
      height m: 1.2
      direction degrees: 101
      direction cardinal: E
      period s: 12
    windswell:
      height m: 1
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 38
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Jialeshuei. Either swell direction (186°), size (2.2m), or wind (44 km/h from 279°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T05:51:23.140Z
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: 20
  out of: 25
  explanation: Good alignment: Swell from 186° is 6° off optimal 180°, still within prime range.
swell size:
  score: 20
  out of: 25
  explanation: Good size: 2.2m is within 15% of ideal 1.6m.
swell period:
  score: 25
  out of: 25
  explanation: Perfect period: 12s is at or above ideal 12s. Long-period groundswell with maximum power.
wind:
  score: 0
  out of: 25
  explanation: Onshore/cross-shore: 44 km/h from 279° (W). Destroying wave quality. Offshore range: 315°-45°.

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.

swell:
  height m: 2.2
  height ft: 7.2
  direction degrees: 186
  direction cardinal: S
  period s: 12
  explanation: 2.2m (7.2ft) swell from 186° (S) at 12s period
wind:
  speed kmh: 44
  speed mph: 27.3
  direction degrees: 279
  direction cardinal: W
  explanation: 44 km/h (27 mph) from 279° (W)
secondary swell:
  height m: 1.3
  direction degrees: 49
  direction cardinal: NE
  period s: 11
windswell:
  height m: 1.8
  period s: 5
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 4
strike score:
  final score: 8
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 13
      out of: 25
      explanation: Moderate alignment: Swell from 200° is 20° off optimal 180°, workable but not ideal.
    swell size:
      score: 15
      out of: 25
      explanation: Too big: 2.6m 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: 42 km/h from 266° (W). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (200°), size (2.6m), or wind (42 km/h from 266°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.6
    height ft: 8.5
    direction degrees: 200
    direction cardinal: SSW
    period s: 10
    explanation: 2.6m (8.5ft) swell from 200° (SSW) at 10s period
  wind:
    speed kmh: 42
    speed mph: 26.1
    direction degrees: 266
    direction cardinal: W
    explanation: 42 km/h (26 mph) from 266° (W)
  secondary swell:
    height m: 0.8
    direction degrees: 38
    direction cardinal: NE
    period s: 11
  windswell:
    height m: 2.2
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
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: 14
      out of: 25
      explanation: Moderate alignment: Swell from 198° is 18° off optimal 180°, workable but not ideal.
    swell size:
      score: 13
      out of: 25
      explanation: Too big: 2.7m exceeds maximum 2.5m. Risk of closeouts.
    swell period:
      score: 8
      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: 32 km/h from 246° (WSW). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (198°), size (2.7m), or wind (32 km/h from 246°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.7
    height ft: 8.9
    direction degrees: 198
    direction cardinal: SSW
    period s: 9
    explanation: 2.7m (8.9ft) swell from 198° (SSW) at 9s period
  wind:
    speed kmh: 32
    speed mph: 19.9
    direction degrees: 246
    direction cardinal: WSW
    explanation: 32 km/h (20 mph) from 246° (WSW)
  windswell:
    height m: 2.6
    period s: 6
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
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: 10
      out of: 25
      explanation: Moderate alignment: Swell from 207° is 27° off optimal 180°, workable but not ideal.
    swell size:
      score: 19
      out of: 25
      explanation: Marginal size: 2.3m is 0.6m from ideal 1.6m.
    swell period:
      score: 8
      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: 30 km/h from 246° (WSW). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (207°), size (2.3m), or wind (30 km/h from 246°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.3
    height ft: 7.5
    direction degrees: 207
    direction cardinal: SSW
    period s: 9
    explanation: 2.3m (7.5ft) swell from 207° (SSW) at 9s period
  wind:
    speed kmh: 30
    speed mph: 18.6
    direction degrees: 246
    direction cardinal: WSW
    explanation: 30 km/h (19 mph) from 246° (WSW)
  secondary swell:
    height m: 0.8
    direction degrees: 166
    direction cardinal: SSE
    period s: 7
  windswell:
    height m: 1.7
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
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: 10
      out of: 25
      explanation: Moderate alignment: Swell from 207° is 27° off optimal 180°, workable but not ideal.
    swell size:
      score: 17
      out of: 25
      explanation: Marginal size: 2.5m is 0.9m 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: 25 km/h from 257° (WSW). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (207°), size (2.5m), or wind (25 km/h from 257°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.5
    height ft: 8.2
    direction degrees: 207
    direction cardinal: SSW
    period s: 8
    explanation: 2.5m (8.2ft) swell from 207° (SSW) at 8s period
  wind:
    speed kmh: 25
    speed mph: 15.5
    direction degrees: 257
    direction cardinal: WSW
    explanation: 25 km/h (16 mph) from 257° (WSW)
  secondary swell:
    height m: 0.4
    direction degrees: 44
    direction cardinal: NE
    period s: 9
  windswell:
    height m: 1.3
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
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: 10
      out of: 25
      explanation: Moderate alignment: Swell from 207° is 27° off optimal 180°, workable but not ideal.
    swell size:
      score: 18
      out of: 25
      explanation: Marginal size: 2.4m is 0.8m 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: 24 km/h from 257° (WSW). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (207°), size (2.4m), or wind (24 km/h from 257°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.4
    height ft: 7.9
    direction degrees: 207
    direction cardinal: SSW
    period s: 8
    explanation: 2.4m (7.9ft) swell from 207° (SSW) at 8s period
  wind:
    speed kmh: 24
    speed mph: 14.9
    direction degrees: 257
    direction cardinal: WSW
    explanation: 24 km/h (15 mph) from 257° (WSW)
  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: 0
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 9
      out of: 25
      explanation: Poor alignment: Swell from 211° is 31° off optimal 180°, barely within workable range 135°-195°.
    swell size:
      score: 17
      out of: 25
      explanation: Marginal size: 2.5m is 0.9m 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 262° (W). Destroying wave quality. Offshore range: 315°-45°.
  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 Jialeshuei. Either swell direction (211°), size (2.5m), or wind (24 km/h from 262°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.5
    height ft: 8.2
    direction degrees: 211
    direction cardinal: SSW
    period s: 7
    explanation: 2.5m (8.2ft) swell from 211° (SSW) at 7s period
  wind:
    speed kmh: 24
    speed mph: 14.9
    direction degrees: 262
    direction cardinal: W
    explanation: 24 km/h (15 mph) from 262° (W)
  windswell:
    height m: 0.9
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization