Surf Forecast for Scheveningen
type: Dataset
description: 10-day surf forecast with Strike Scores for Scheveningen, The Hague, Netherlands
about: Scheveningen
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 52.1056
    longitude: 4.2756
  description: Scheveningen is the Netherlands' surf headquarters—a consistent North Sea beachbreak that has nurtured Dutch surf culture despite brutally cold water and a coastline that barely faces the right direction. When autumn and winter storms sweep through, this beach produces legitimate waves that draw the entire Dutch surf community. The groynes create defined peaks but also hazards. The determination required to surf in 8°C water builds serious character. Dutch surfing at its most hardcore.
summary:
  best day:
    date: 2026-08-07
    score: 16
    category: Poor
    explanation: Best day in the forecast: 2026-08-07 with a score of 16/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 6/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  day index: 0
  strike score:
    final score: 0
    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 349° is 39° off optimal 310°, barely within workable range 270°-350°.
      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: 7s is below minimum 9s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 3
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 216° (SW). Destroying wave quality. Offshore range: 50°-130°.
    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 Scheveningen. Either swell direction (349°), size (0.5m), or wind (14 km/h from 216°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.5
      height ft: 1.6
      direction degrees: 349
      direction cardinal: N
      period s: 7
      peak period s: 6.7
      explanation: 0.5m (1.6ft) swell from 349° (N) at 6.7s period
    wind:
      speed kmh: 14
      speed mph: 8.7
      direction degrees: 216
      direction cardinal: SW
      explanation: 14 km/h (9 mph) from 216° (SW)
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: 11
        out of: 25
        explanation: Moderate alignment: Swell from 286° is 24° off optimal 310°, workable but not ideal.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 0.4m is below minimum 0.8m. Waves will be weak/mushy.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 7s is below minimum 9s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 29 km/h from 235° (SW). Destroying wave quality. Offshore range: 50°-130°.
    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 Scheveningen. Either swell direction (286°), size (0.4m), or wind (29 km/h from 235°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.4
      height ft: 1.3
      direction degrees: 286
      direction cardinal: WNW
      period s: 7
      peak period s: 6.7
      explanation: 0.4m (1.3ft) swell from 286° (WNW) at 6.7s period
    wind:
      speed kmh: 29
      speed mph: 18.0
      direction degrees: 235
      direction cardinal: SW
      explanation: 29 km/h (18 mph) from 235° (SW)
    windswell:
      height m: 1.2
      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: 14
        out of: 25
        explanation: Moderate alignment: Swell from 292° is 18° off optimal 310°, workable but not ideal.
      swell size:
        score: 9
        out of: 25
        explanation: Marginal size: 0.9m is 1.0m from ideal 1.9m.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 6s is below minimum 9s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 23 km/h from 286° (WNW). Destroying wave quality. Offshore range: 50°-130°.
    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 Scheveningen. Either swell direction (292°), size (0.9m), or wind (23 km/h from 286°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 292
      direction cardinal: WNW
      period s: 6
      peak period s: 5.8
      explanation: 0.9m (3.0ft) swell from 292° (WNW) at 5.8s period
    wind:
      speed kmh: 23
      speed mph: 14.3
      direction degrees: 286
      direction cardinal: WNW
      explanation: 23 km/h (14 mph) from 286° (WNW)
    secondary swell:
      height m: 0.4
      direction degrees: 282
      direction cardinal: WNW
      period s: 5
    windswell:
      height m: 0.8
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 16
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Scheveningen. Either swell direction (337°), size (1.0m), or wind (8 km/h from 238°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T04:16:09.478Z
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: 10
  out of: 25
  explanation: Moderate alignment: Swell from 337° is 27° off optimal 310°, workable but not ideal.
swell size:
  score: 9
  out of: 25
  explanation: Marginal size: 1.0m is 0.9m from ideal 1.9m.
swell period:
  score: 4
  out of: 25
  explanation: Short period: 8s is below minimum 9s. Windswell-dominated (choppy, weak waves).
wind:
  score: 13
  out of: 25
  explanation: Onshore/cross-shore: 8 km/h from 238° (WSW). Destroying wave quality. Offshore range: 50°-130°.

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: 1
  height ft: 3.3
  direction degrees: 337
  direction cardinal: NNW
  period s: 8
  peak period s: 8.3
  explanation: 1.0m (3.3ft) swell from 337° (NNW) at 8.3s period
wind:
  speed kmh: 8
  speed mph: 5.0
  direction degrees: 238
  direction cardinal: WSW
  explanation: 8 km/h (5 mph) from 238° (WSW)

date: 2026-08-08
day index: 4
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 8
      out of: 25
      explanation: Poor alignment: Swell from 346° is 36° off optimal 310°, barely within workable range 270°-350°.
    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: 8s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 18
      out of: 25
      explanation: Moderate offshore: 12 km/h from 120° (ESE). Still grooming but noticeable wind.
  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 Scheveningen. Either swell direction (346°), size (0.6m), or wind (12 km/h from 120°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.6
    height ft: 2.0
    direction degrees: 346
    direction cardinal: NNW
    period s: 8
    explanation: 0.6m (2.0ft) swell from 346° (NNW) at 8s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 120
    direction cardinal: ESE
    explanation: 12 km/h (7 mph) from 120° (ESE)

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: 6
      out of: 25
      explanation: Poor alignment: Swell from 352° is 42° off optimal 310°, barely within workable range 270°-350°.
    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: 1
      out of: 25
      explanation: Short period: 6s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 16 km/h from 204° (SSW). Destroying wave quality. Offshore range: 50°-130°.
  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 Scheveningen. Either swell direction (352°), size (0.2m), or wind (16 km/h from 204°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.2
    height ft: 0.7
    direction degrees: 352
    direction cardinal: N
    period s: 6
    explanation: 0.2m (0.7ft) swell from 352° (N) at 6s period
  wind:
    speed kmh: 16
    speed mph: 9.9
    direction degrees: 204
    direction cardinal: SSW
    explanation: 16 km/h (10 mph) from 204° (SSW)

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 244° is outside workable range 270°-350°. Wrong swell direction for this spot.
    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: 0
      out of: 25
      explanation: Short period: 4s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 16 km/h from 288° (WNW). Destroying wave quality. Offshore range: 50°-130°.
  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 Scheveningen. Either swell direction (244°), size (0.7m), or wind (16 km/h from 288°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.7
    height ft: 2.3
    direction degrees: 244
    direction cardinal: WSW
    period s: 4
    explanation: 0.7m (2.3ft) swell from 244° (WSW) at 4s period
  wind:
    speed kmh: 16
    speed mph: 9.9
    direction degrees: 288
    direction cardinal: WNW
    explanation: 16 km/h (10 mph) from 288° (WNW)
  windswell:
    height m: 0.4
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 16
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 12
      out of: 25
      explanation: Moderate alignment: Swell from 331° is 21° off optimal 310°, workable but not ideal.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 0.4m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 5s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 13
      out of: 25
      explanation: Onshore/cross-shore: 8 km/h from 242° (WSW). Destroying wave quality. Offshore range: 50°-130°.
  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 Scheveningen. Either swell direction (331°), size (0.4m), or wind (8 km/h from 242°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.4
    height ft: 1.3
    direction degrees: 331
    direction cardinal: NNW
    period s: 5
    explanation: 0.4m (1.3ft) swell from 331° (NNW) at 5s period
  wind:
    speed kmh: 8
    speed mph: 5.0
    direction degrees: 242
    direction cardinal: WSW
    explanation: 8 km/h (5 mph) from 242° (WSW)

date: 2026-08-12
day index: 8
strike score:
  final score: 14
  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 345° is 35° off optimal 310°, barely within workable range 270°-350°.
    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: 2
      out of: 25
      explanation: Short period: 7s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 9 km/h from 228° (SW). Destroying wave quality. Offshore range: 50°-130°.
  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 Scheveningen. Either swell direction (345°), size (0.6m), or wind (9 km/h from 228°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.6
    height ft: 2.0
    direction degrees: 345
    direction cardinal: NNW
    period s: 7
    explanation: 0.6m (2.0ft) swell from 345° (NNW) at 7s period
  wind:
    speed kmh: 9
    speed mph: 5.6
    direction degrees: 228
    direction cardinal: SW
    explanation: 9 km/h (6 mph) from 228° (SW)

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: 23
      out of: 25
      explanation: Good alignment: Swell from 308° is 2° off optimal 310°, still within prime range.
    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: 1
      out of: 25
      explanation: Short period: 6s is below minimum 9s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 17 km/h from 257° (WSW). Destroying wave quality. Offshore range: 50°-130°.
  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 Scheveningen. Either swell direction (308°), size (0.5m), or wind (17 km/h from 257°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 308
    direction cardinal: NW
    period s: 6
    explanation: 0.5m (1.6ft) swell from 308° (NW) at 6s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 257
    direction cardinal: WSW
    explanation: 17 km/h (11 mph) from 257° (WSW)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization