Surf Forecast for Yoff Beach
type: Dataset
description: 10-day surf forecast with Strike Scores for Yoff Beach, Dakar, Senegal
about: Yoff Beach
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 14.7583
    longitude: -17.4583
  description: Yoff Beach is a friendly beach break in northern Dakar, popular with beginners and longboarders. The wave is a typical sand-bottom peak that works on a variety of conditions and tides. It's one of the most accessible spots in the area, with easy parking and multiple peaks to spread out the crowd.
summary:
  best day:
    date: 2026-08-11
    score: 41
    category: Poor
    explanation: Best day in the forecast: 2026-08-11 with a score of 41/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 26/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 12
    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 293° is 22° off optimal 315°, workable but not ideal.
      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: 6
        out of: 25
        explanation: Moderate period: 8s meets minimum 8s but below ideal 12s. Some groundswell energy present.
      wind:
        score: 2
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 231° (SW). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (293°), size (0.7m), or wind (14 km/h from 231°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.7
      height ft: 2.3
      direction degrees: 293
      direction cardinal: WNW
      period s: 8
      explanation: 0.7m (2.3ft) swell from 293° (WNW) at 8s period
    wind:
      speed kmh: 14
      speed mph: 8.7
      direction degrees: 231
      direction cardinal: SW
      explanation: 14 km/h (9 mph) from 231° (SW)
    secondary swell:
      height m: 0.4
      direction degrees: 241
      direction cardinal: WSW
      period s: 8
forecasts:
  date: 2026-08-06
  day index: 1
  strike score:
    final score: 22
    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 198° is outside workable range 300°-350°. Wrong swell direction for this spot.
      swell size:
        score: 10
        out of: 25
        explanation: Marginal size: 1.0m is 0.4m from ideal 1.4m.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 7s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 25
        out of: 25
        explanation: Light offshore: 6 km/h from 96° (E). Grooming the wave face beautifully.
    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 Yoff Beach. Either swell direction (198°), size (1.0m), or wind (6 km/h from 96°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1
      height ft: 3.3
      direction degrees: 198
      direction cardinal: SSW
      period s: 7
      explanation: 1.0m (3.3ft) swell from 198° (SSW) at 7s period
    wind:
      speed kmh: 6
      speed mph: 3.7
      direction degrees: 96
      direction cardinal: E
      explanation: 6 km/h (4 mph) from 96° (E)
    secondary swell:
      height m: 0.4
      direction degrees: 195
      direction cardinal: SSW
      period s: 13
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 18
    category: Poor
    category emoji: 💤
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 19
        out of: 25
        explanation: Moderate alignment: Swell from 324° is 9° off optimal 315°, workable but not ideal.
      swell size:
        score: 9
        out of: 25
        explanation: Marginal size: 0.9m is 0.5m from ideal 1.4m.
      swell period:
        score: 8
        out of: 25
        explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
      wind:
        score: 7
        out of: 25
        explanation: Onshore/cross-shore: 13 km/h from 7° (N). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (324°), size (0.9m), or wind (13 km/h from 7°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 324
      direction cardinal: NW
      period s: 9
      explanation: 0.9m (3.0ft) swell from 324° (NW) at 9s period
    wind:
      speed kmh: 13
      speed mph: 8.1
      direction degrees: 7
      direction cardinal: N
      explanation: 13 km/h (8 mph) from 7° (N)
    secondary swell:
      height m: 0.5
      direction degrees: 195
      direction cardinal: SSW
      period s: 8
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 39
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Yoff Beach. Either swell direction (323°), size (0.9m), or wind (10 km/h from 291°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T01:20:01.233Z
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: 19
  out of: 25
  explanation: Moderate alignment: Swell from 323° is 8° off optimal 315°, workable but not ideal.
swell size:
  score: 9
  out of: 25
  explanation: Marginal size: 0.9m is 0.5m from ideal 1.4m.
swell period:
  score: 8
  out of: 25
  explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
wind:
  score: 9
  out of: 25
  explanation: Onshore/cross-shore: 10 km/h from 291° (WNW). Destroying wave quality. Offshore range: 60°-130°.

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: 0.9
  height ft: 3.0
  direction degrees: 323
  direction cardinal: NW
  period s: 9
  explanation: 0.9m (3.0ft) swell from 323° (NW) at 9s period
wind:
  speed kmh: 10
  speed mph: 6.2
  direction degrees: 291
  direction cardinal: WNW
  explanation: 10 km/h (6 mph) from 291° (WNW)
secondary swell:
  height m: 0.5
  direction degrees: 214
  direction cardinal: SW
  period s: 8

date: 2026-08-09
day index: 4
strike score:
  final score: 10
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 10
      out of: 25
      explanation: Moderate alignment: Swell from 343° is 28° off optimal 315°, workable but not ideal.
    swell size:
      score: 10
      out of: 25
      explanation: Marginal size: 1.0m is 0.4m from ideal 1.4m.
    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: 15 km/h from 264° (W). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (343°), size (1.0m), or wind (15 km/h from 264°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 343
    direction cardinal: NNW
    period s: 8
    explanation: 1.0m (3.3ft) swell from 343° (NNW) at 8s period
  wind:
    speed kmh: 15
    speed mph: 9.3
    direction degrees: 264
    direction cardinal: W
    explanation: 15 km/h (9 mph) from 264° (W)
  secondary swell:
    height m: 0.5
    direction degrees: 198
    direction cardinal: SSW
    period s: 8
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 5
strike score:
  final score: 29
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 10
      out of: 25
      explanation: Moderate alignment: Swell from 342° is 27° off optimal 315°, workable but not ideal.
    swell size:
      score: 13
      out of: 25
      explanation: Marginal size: 1.2m is 0.2m from ideal 1.4m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 2
      out of: 25
      explanation: Onshore/cross-shore: 14 km/h from 263° (W). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (342°), size (1.2m), or wind (14 km/h from 263°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.2
    height ft: 3.9
    direction degrees: 342
    direction cardinal: NNW
    period s: 9
    explanation: 1.2m (3.9ft) swell from 342° (NNW) at 9s period
  wind:
    speed kmh: 14
    speed mph: 8.7
    direction degrees: 263
    direction cardinal: W
    explanation: 14 km/h (9 mph) from 263° (W)
  secondary swell:
    height m: 0.4
    direction degrees: 194
    direction cardinal: SSW
    period s: 12

date: 2026-08-11
day index: 6
strike score:
  final score: 41
  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 350° is 35° off optimal 315°, barely within workable range 300°-350°.
    swell size:
      score: 23
      out of: 25
      explanation: Good size: 1.6m is within 15% of ideal 1.4m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 4
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 289° (WNW). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (350°), size (1.6m), or wind (13 km/h from 289°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.6
    height ft: 5.2
    direction degrees: 350
    direction cardinal: N
    period s: 9
    explanation: 1.6m (5.2ft) swell from 350° (N) at 9s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 289
    direction cardinal: WNW
    explanation: 13 km/h (8 mph) from 289° (WNW)
  secondary swell:
    height m: 0.4
    direction degrees: 191
    direction cardinal: S
    period s: 10

date: 2026-08-12
day index: 7
strike score:
  final score: 40
  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 350° is 35° off optimal 315°, barely within workable range 300°-350°.
    swell size:
      score: 20
      out of: 25
      explanation: Good size: 1.5m is within 15% of ideal 1.4m.
    swell period:
      score: 8
      out of: 25
      explanation: Moderate period: 9s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 4
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 262° (W). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (350°), size (1.5m), or wind (13 km/h from 262°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.5
    height ft: 4.9
    direction degrees: 350
    direction cardinal: N
    period s: 9
    explanation: 1.5m (4.9ft) swell from 350° (N) at 9s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 262
    direction cardinal: W
    explanation: 13 km/h (8 mph) from 262° (W)
  secondary swell:
    height m: 0.4
    direction degrees: 190
    direction cardinal: S
    period s: 8

date: 2026-08-13
day index: 8
strike score:
  final score: 34
  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 350° is 35° off optimal 315°, barely within workable range 300°-350°.
    swell size:
      score: 13
      out of: 25
      explanation: Marginal size: 1.2m is 0.2m from ideal 1.4m.
    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 265° (W). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (350°), size (1.2m), or wind (12 km/h from 265°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.2
    height ft: 3.9
    direction degrees: 350
    direction cardinal: N
    period s: 9
    explanation: 1.2m (3.9ft) swell from 350° (N) at 9s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 265
    direction cardinal: W
    explanation: 12 km/h (7 mph) from 265° (W)

date: 2026-08-14
day index: 9
strike score:
  final score: 17
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 218° is outside workable range 300°-350°. Wrong swell direction for this spot.
    swell size:
      score: 10
      out of: 25
      explanation: Marginal size: 1.0m is 0.4m from ideal 1.4m.
    swell period:
      score: 6
      out of: 25
      explanation: Moderate period: 8s meets minimum 8s but below ideal 12s. Some groundswell energy present.
    wind:
      score: 20
      out of: 25
      explanation: Onshore/cross-shore: 4 km/h from 305° (NW). Destroying wave quality. Offshore range: 60°-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 Yoff Beach. Either swell direction (218°), size (1.0m), or wind (4 km/h from 305°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 218
    direction cardinal: SW
    period s: 8
    explanation: 1.0m (3.3ft) swell from 218° (SW) at 8s period
  wind:
    speed kmh: 4
    speed mph: 2.5
    direction degrees: 305
    direction cardinal: NW
    explanation: 4 km/h (2 mph) from 305° (NW)

Strike Mission
type: Organization