Surf Forecast for Papenoo
type: Dataset
description: 10-day surf forecast with Strike Scores for Papenoo, Tahiti, French Polynesia
about: Papenoo
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -17.4667
    longitude: -149.4167
  description: Papenoo sits on Tahiti's north coast where a mountain river meets the sea—a rare spot that catches North Pacific energy during the summer hemisphere winter. This rivermouth setup creates shifting sandbars and reef sections that offer variety depending on conditions and swell direction. When north swells pulse through, Papenoo provides an alternative to the island's south-facing waves, extending the surf season for those based in Tahiti. The black sand beach, mountain backdrop, and less-crowded lineup make it feel more remote than its proximity to Papeete suggests.
summary:
  best day:
    date: 2026-08-09
    score: 15
    category: Poor
    explanation: Best day in the forecast: 2026-08-09 with a score of 15/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 7/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-04
  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: 0
        out of: 25
        explanation: No alignment: Swell from 93° is outside workable range 300°-20°. Wrong swell direction for this spot.
      swell size:
        score: 11
        out of: 25
        explanation: Marginal size: 1.2m is 0.7m from ideal 1.9m.
      swell period:
        score: 4
        out of: 25
        explanation: Short period: 9s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 13
        out of: 25
        explanation: Onshore/cross-shore: 8 km/h from 35° (NE). Destroying wave quality. Offshore range: 140°-220°.
    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 Papenoo. Either swell direction (93°), size (1.2m), or wind (8 km/h from 35°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1.2
      height ft: 3.9
      direction degrees: 93
      direction cardinal: E
      period s: 9
      explanation: 1.2m (3.9ft) swell from 93° (E) at 9s period
    wind:
      speed kmh: 8
      speed mph: 5.0
      direction degrees: 35
      direction cardinal: NE
      explanation: 8 km/h (5 mph) from 35° (NE)
forecasts:
  date: 2026-08-05
  day index: 1
  strike score:
    final score: 7
    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 80° is outside workable range 300°-20°. Wrong swell direction for this spot.
      swell size:
        score: 10
        out of: 25
        explanation: Marginal size: 1.1m is 0.8m from ideal 1.9m.
      swell period:
        score: 2
        out of: 25
        explanation: Short period: 8s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 17
        out of: 25
        explanation: Onshore/cross-shore: 6 km/h from 53° (NE). Destroying wave quality. Offshore range: 140°-220°.
    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 Papenoo. Either swell direction (80°), size (1.1m), or wind (6 km/h from 53°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1.1
      height ft: 3.6
      direction degrees: 80
      direction cardinal: E
      period s: 8
      explanation: 1.1m (3.6ft) swell from 80° (E) at 8s period
    wind:
      speed kmh: 6
      speed mph: 3.7
      direction degrees: 53
      direction cardinal: NE
      explanation: 6 km/h (4 mph) from 53° (NE)
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: 0
        out of: 25
        explanation: No alignment: Swell from 80° is outside workable range 300°-20°. 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: 2
        out of: 25
        explanation: Short period: 8s is below minimum 10s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 16
        out of: 25
        explanation: Onshore/cross-shore: 6 km/h from 33° (NNE). Destroying wave quality. Offshore range: 140°-220°.
    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 Papenoo. Either swell direction (80°), size (0.7m), or wind (6 km/h from 33°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.7
      height ft: 2.3
      direction degrees: 80
      direction cardinal: E
      period s: 8
      explanation: 0.7m (2.3ft) swell from 80° (E) at 8s period
    wind:
      speed kmh: 6
      speed mph: 3.7
      direction degrees: 33
      direction cardinal: NNE
      explanation: 6 km/h (4 mph) from 33° (NNE)
    secondary swell:
      height m: 0.5
      direction degrees: 55
      direction cardinal: NE
      period s: 5
forecasts:
  date: 2026-08-07
  day index: 3
  strike score:
    final score: 5
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 0
        out of: 25
        explanation: No alignment: Swell from 150° is outside workable range 300°-20°. 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: 14
        out of: 25
        explanation: Moderate period: 12s meets minimum 10s but below ideal 14s. Some groundswell energy present.
    summary: Poor conditions at Papenoo. Either swell direction (150°), size (0.7m), or wind (15 km/h from 137°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T03:09:24.145Z
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)

score: 5
out of: 25
explanation: Onshore/cross-shore: 15 km/h from 137° (SE). Destroying wave quality. Offshore range: 140°-220°.

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.

swell:
  height m: 0.7
  height ft: 2.3
  direction degrees: 150
  direction cardinal: SSE
  period s: 12
  explanation: 0.7m (2.3ft) swell from 150° (SSE) at 12s period
wind:
  speed kmh: 15
  speed mph: 9.3
  direction degrees: 137
  direction cardinal: SE
  explanation: 15 km/h (9 mph) from 137° (SE)
windswell:
  height m: 0.4
  period s: 3
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-08
day index: 4
strike score:
  final score: 11
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 98° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 1.0m is 0.9m from ideal 1.9m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 20 km/h from 133° (SE). Destroying wave quality. Offshore range: 140°-220°.
  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 Papenoo. Either swell direction (98°), size (1.0m), or wind (20 km/h from 133°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 98
    direction cardinal: E
    period s: 15
    explanation: 1.0m (3.3ft) swell from 98° (E) at 15s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 133
    direction cardinal: SE
    explanation: 20 km/h (12 mph) from 133° (SE)
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 5
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 160° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 8
      out of: 25
      explanation: Marginal size: 0.8m is 1.1m from ideal 1.9m.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 7
      out of: 25
      explanation: Strong offshore: 22 km/h from 140° (SE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    windswell penalty:
      adjustment: -7
      windswell degraded: true
      explanation: -7 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Papenoo. Either swell direction (160°), size (0.8m), or wind (22 km/h from 140°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.8
    height ft: 2.6
    direction degrees: 160
    direction cardinal: SSE
    period s: 17
    explanation: 0.8m (2.6ft) swell from 160° (SSE) at 17s period
  wind:
    speed kmh: 22
    speed mph: 13.7
    direction degrees: 140
    direction cardinal: SE
    explanation: 22 km/h (14 mph) from 140° (SE)
  secondary swell:
    height m: 0.4
    direction degrees: 100
    direction cardinal: E
    period s: 9
  windswell:
    height m: 0.9
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 6
strike score:
  final score: 9
  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 93° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 9
      out of: 25
      explanation: Marginal size: 1.0m is 0.9m from ideal 1.9m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 15s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 26 km/h from 134° (SE). Destroying wave quality. Offshore range: 140°-220°.
  adjustments:
    wind history:
      adjustment: 0
      groomed: false
      morning sickness: false
      explanation: No significant wind history adjustment.
    windswell penalty:
      adjustment: -7
      windswell degraded: true
      explanation: -7 points: Short-period windswell is present, creating choppy, disorganized conditions.
    secondary swell bonus:
      adjustment: 0
      explanation: No secondary swell bonus.
  summary: Poor conditions at Papenoo. Either swell direction (93°), size (1.0m), or wind (26 km/h from 134°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 93
    direction cardinal: E
    period s: 15
    explanation: 1.0m (3.3ft) swell from 93° (E) at 15s period
  wind:
    speed kmh: 26
    speed mph: 16.2
    direction degrees: 134
    direction cardinal: SE
    explanation: 26 km/h (16 mph) from 134° (SE)
  secondary swell:
    height m: 0.4
    direction degrees: 108
    direction cardinal: ESE
    period s: 10
  windswell:
    height m: 1.5
    period s: 5
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 7
strike score:
  final score: 9
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 0
      out of: 25
      explanation: No alignment: Swell from 96° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 17
      out of: 25
      explanation: Marginal size: 1.9m is 0.0m from ideal 1.9m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 24 km/h from 124° (SE). Destroying wave quality. Offshore range: 140°-220°.
  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 Papenoo. Either swell direction (96°), size (1.9m), or wind (24 km/h from 124°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.9
    height ft: 6.2
    direction degrees: 96
    direction cardinal: E
    period s: 14
    explanation: 1.9m (6.2ft) swell from 96° (E) at 14s period
  wind:
    speed kmh: 24
    speed mph: 14.9
    direction degrees: 124
    direction cardinal: SE
    explanation: 24 km/h (15 mph) from 124° (SE)
  windswell:
    height m: 1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
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: 0
      out of: 25
      explanation: No alignment: Swell from 96° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 14
      out of: 25
      explanation: Marginal size: 1.6m is 0.3m from ideal 1.9m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 14s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 24 km/h from 133° (SE). Destroying wave quality. Offshore range: 140°-220°.
  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 Papenoo. Either swell direction (96°), size (1.6m), or wind (24 km/h from 133°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.6
    height ft: 5.2
    direction degrees: 96
    direction cardinal: E
    period s: 14
    explanation: 1.6m (5.2ft) swell from 96° (E) at 14s period
  wind:
    speed kmh: 24
    speed mph: 14.9
    direction degrees: 133
    direction cardinal: SE
    explanation: 24 km/h (15 mph) from 133° (SE)
  windswell:
    height m: 1.2
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

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: 0
      out of: 25
      explanation: No alignment: Swell from 134° is outside workable range 300°-20°. Wrong swell direction for this spot.
    swell size:
      score: 11
      out of: 25
      explanation: Marginal size: 1.3m is 0.6m from ideal 1.9m.
    swell period:
      score: 25
      out of: 25
      explanation: Perfect period: 16s is at or above ideal 14s. Long-period groundswell with maximum power.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 20 km/h from 125° (SE). Destroying wave quality. Offshore range: 140°-220°.
  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 Papenoo. Either swell direction (134°), size (1.3m), or wind (20 km/h from 125°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.3
    height ft: 4.3
    direction degrees: 134
    direction cardinal: SE
    period s: 16
    explanation: 1.3m (4.3ft) swell from 134° (SE) at 16s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 125
    direction cardinal: SE
    explanation: 20 km/h (12 mph) from 125° (SE)
  windswell:
    height m: 0.8
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization