Surf Forecast for Scarecrows
type: Dataset
description: 10-day surf forecast with Strike Scores for Scarecrows, North Sipora, Mentawai, Indonesia
about: Scarecrows
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -2.363
    longitude: 99.58
  description: Scarecrows is an often-overlooked left reef break in North Sipora, Mentawai Islands, that picks up significant swell and delivers bowling waves with solid barrel sections. The wave offers big carving opportunities on the outside before transitioning into hollow inside sections. Its relatively low profile among the Mentawai lineup means fewer boats anchor here, providing a more peaceful session. Best surfed at mid to high tide with light easterly winds.
summary:
  best day:
    date: 2026-08-07
    score: 88
    category: Firing
    explanation: Best day in the forecast: 2026-08-07 with a score of 88/100 (Firing)
  firing days count: 1
  firing days:
    date: 2026-08-07
    score: 88
  overall recommendation: Moderate recommendation: Scarecrows has 1 Firing day(s) and 7 Good day(s). Worth considering.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 69
    category: Good
    category emoji: ✅
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 20
        out of: 25
        explanation: Good alignment: Swell from 194° is 6° off optimal 200°, still within prime range.
      swell size:
        score: 13
        out of: 25
        explanation: Marginal size: 1.8m is 0.3m from ideal 2.1m.
      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: 17
        out of: 25
        explanation: Onshore/cross-shore: 7 km/h from 333° (NNW). Destroying wave quality. Offshore range: 60°-120°.
    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: Good surfable conditions at Scarecrows. 1.8m swell from 194° with manageable wind. Solid session guaranteed.
  conditions:
    swell:
      height m: 1.8
      height ft: 5.9
      direction degrees: 194
      direction cardinal: SSW
      period s: 15
      explanation: 1.8m (5.9ft) swell from 194° (SSW) at 15s period
    wind:
      speed kmh: 7
      speed mph: 4.3
      direction degrees: 333
      direction cardinal: NNW
      explanation: 7 km/h (4 mph) from 333° (NNW)
    secondary swell:
      height m: 1.2
      direction degrees: 240
      direction cardinal: WSW
      period s: 13
forecasts:
  date: 2026-08-06
  day index: 1
  strike score:
    final score: 77
    category: Good
    category emoji: ✅
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 25
        out of: 25
        explanation: Perfect alignment: Swell from 200° is within 5° of optimal 200°.
      swell size:
        score: 24
        out of: 25
        explanation: Perfect size: 2.5m is at the sweet spot (ideal: 2.1m).
      swell period:
        score: 23
        out of: 25
        explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
      wind:
        score: 12
        out of: 25
        explanation: Onshore/cross-shore: 9 km/h from 345° (NNW). Destroying wave quality. Offshore range: 60°-120°.
    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: Good surfable conditions at Scarecrows. 2.5m swell from 200° with manageable wind. Solid session guaranteed.
  conditions:
    swell:
      height m: 2.5
      height ft: 8.2
      direction degrees: 200
      direction cardinal: SSW
      period s: 17
      explanation: 2.5m (8.2ft) swell from 200° (SSW) at 17s period
    wind:
      speed kmh: 9
      speed mph: 5.6
      direction degrees: 345
      direction cardinal: NNW
      explanation: 9 km/h (6 mph) from 345° (NNW)
    secondary swell:
      height m: 1
      direction degrees: 288
      direction cardinal: WNW
      period s: 6
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 88
    category: Firing
    category emoji: 🔥
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 23
        out of: 25
        explanation: Good alignment: Swell from 197° is 3° off optimal 200°, still within prime range.
      swell size:
        score: 21
        out of: 25
        explanation: Good size: 2.6m is within 15% of ideal 2.1m.
      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: 25
        out of: 25
        explanation: Onshore/cross-shore: 4 km/h from 143° (SE). Destroying wave quality. Offshore range: 60°-120°.
    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: Excellent conditions at Scarecrows. The 2.6m swell from 197° aligns well with the spot, and light offshore winds are grooming the face. Worth planning a trip around this.
  conditions:
    swell:
      height m: 2.6
      height ft: 8.5
      direction degrees: 197
      direction cardinal: SSW
      period s: 16
      explanation: 2.6m (8.5ft) swell from 197° (SSW) at 16s period
    wind:
      speed kmh: 4
      speed mph: 2.5
      direction degrees: 143
      direction cardinal: SE
      explanation: 4 km/h (2 mph) from 143° (SE)
    secondary swell:
      height m: 0.7
      direction degrees: 293
      direction cardinal: WNW
      period s: 7
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 70
    category: Good
    category emoji: ✅
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Good surfable conditions at Scarecrows. 2.7m swell from 193° with manageable wind. Solid session guaranteed.
provider: Strike Mission
date published: 2026-08-05T03:16:03.195Z
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 193° is 7° off optimal 200°, still within prime range.
swell size:
  score: 20
  out of: 25
  explanation: Good size: 2.7m is within 15% of ideal 2.1m.
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: 11
  out of: 25
  explanation: Onshore/cross-shore: 11 km/h from 140° (SE). Destroying wave quality. Offshore range: 60°-120°.

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: 2.7
  height ft: 8.9
  direction degrees: 193
  direction cardinal: SSW
  period s: 16
  explanation: 2.7m (8.9ft) swell from 193° (SSW) at 16s period
wind:
  speed kmh: 11
  speed mph: 6.8
  direction degrees: 140
  direction cardinal: SE
  explanation: 11 km/h (7 mph) from 140° (SE)
secondary swell:
  height m: 0.5
  direction degrees: 294
  direction cardinal: WNW
  period s: 7

date: 2026-08-09
day index: 4
strike score:
  final score: 65
  category: Good
  category emoji: ✅
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 19
      out of: 25
      explanation: Moderate alignment: Swell from 192° is 8° off optimal 200°, workable but not ideal.
    swell size:
      score: 23
      out of: 25
      explanation: Good size: 2.4m is within 15% of ideal 2.1m.
    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: 5
      out of: 25
      explanation: Onshore/cross-shore: 14 km/h from 164° (SSE). Destroying wave quality. Offshore range: 60°-120°.
  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: Good surfable conditions at Scarecrows. 2.4m swell from 192° with manageable wind. Solid session guaranteed.
conditions:
  swell:
    height m: 2.4
    height ft: 7.9
    direction degrees: 192
    direction cardinal: SSW
    period s: 16
    explanation: 2.4m (7.9ft) swell from 192° (SSW) at 16s period
  wind:
    speed kmh: 14
    speed mph: 8.7
    direction degrees: 164
    direction cardinal: SSE
    explanation: 14 km/h (9 mph) from 164° (SSE)
  secondary swell:
    height m: 0.9
    direction degrees: 175
    direction cardinal: S
    period s: 6
  windswell:
    height m: 0.7
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
day index: 5
strike score:
  final score: 67
  category: Good
  category emoji: ✅
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 17
      out of: 25
      explanation: Moderate alignment: Swell from 188° is 12° off optimal 200°, workable but not ideal.
    swell size:
      score: 21
      out of: 25
      explanation: Good size: 2.3m is within 15% of ideal 2.1m.
    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: 11
      out of: 25
      explanation: Onshore/cross-shore: 11 km/h from 161° (SSE). Destroying wave quality. Offshore range: 60°-120°.
  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: Good surfable conditions at Scarecrows. 2.3m swell from 188° with manageable wind. Solid session guaranteed.
conditions:
  swell:
    height m: 2.3
    height ft: 7.5
    direction degrees: 188
    direction cardinal: S
    period s: 15
    explanation: 2.3m (7.5ft) swell from 188° (S) at 15s period
  wind:
    speed kmh: 11
    speed mph: 6.8
    direction degrees: 161
    direction cardinal: SSE
    explanation: 11 km/h (7 mph) from 161° (SSE)
  secondary swell:
    height m: 1.2
    direction degrees: 186
    direction cardinal: S
    period s: 17

date: 2026-08-11
day index: 6
strike score:
  final score: 58
  category: Fair
  category emoji: 😐
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 14
      out of: 25
      explanation: Moderate alignment: Swell from 182° is 18° off optimal 200°, workable but not ideal.
    swell size:
      score: 13
      out of: 25
      explanation: Too big: 3.2m exceeds maximum 3.0m. Risk of closeouts.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 17s is 121% of ideal 14s. Clean, powerful groundswell.
    wind:
      score: 13
      out of: 25
      explanation: Onshore/cross-shore: 10 km/h from 136° (SE). Destroying wave quality. Offshore range: 60°-120°.
  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 Scarecrows. The 3.2m swell from 182° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 3.2
    height ft: 10.5
    direction degrees: 182
    direction cardinal: S
    period s: 17
    explanation: 3.2m (10.5ft) swell from 182° (S) at 17s period
  wind:
    speed kmh: 10
    speed mph: 6.2
    direction degrees: 136
    direction cardinal: SE
    explanation: 10 km/h (6 mph) from 136° (SE)
  secondary swell:
    height m: 0.4
    direction degrees: 264
    direction cardinal: W
    period s: 11
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 7
strike score:
  final score: 49
  category: Fair
  category emoji: 😐
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 13
      out of: 25
      explanation: Moderate alignment: Swell from 181° is 19° off optimal 200°, workable but not ideal.
    swell size:
      score: 18
      out of: 25
      explanation: Marginal size: 2.9m is 0.8m from ideal 2.1m.
    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: 15 km/h from 145° (SE). Destroying wave quality. Offshore range: 60°-120°.
  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 Scarecrows. The 2.9m swell from 181° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 2.9
    height ft: 9.5
    direction degrees: 181
    direction cardinal: S
    period s: 16
    explanation: 2.9m (9.5ft) swell from 181° (S) at 16s period
  wind:
    speed kmh: 15
    speed mph: 9.3
    direction degrees: 145
    direction cardinal: SE
    explanation: 15 km/h (9 mph) from 145° (SE)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 8
strike score:
  final score: 70
  category: Good
  category emoji: ✅
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 12
      out of: 25
      explanation: Moderate alignment: Swell from 178° is 22° off optimal 200°, workable but not ideal.
    swell size:
      score: 21
      out of: 25
      explanation: Good size: 2.3m is within 15% of ideal 2.1m.
    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: 12
      out of: 25
      explanation: Onshore/cross-shore: 11 km/h from 133° (SE). Destroying wave quality. Offshore range: 60°-120°.
  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: Good surfable conditions at Scarecrows. 2.3m swell from 178° with manageable wind. Solid session guaranteed.
conditions:
  swell:
    height m: 2.3
    height ft: 7.5
    direction degrees: 178
    direction cardinal: S
    period s: 15
    explanation: 2.3m (7.5ft) swell from 178° (S) at 15s period
  wind:
    speed kmh: 11
    speed mph: 6.8
    direction degrees: 133
    direction cardinal: SE
    explanation: 11 km/h (7 mph) from 133° (SE)
  secondary swell:
    height m: 1.2
    direction degrees: 181
    direction cardinal: S
    period s: 15
  windswell:
    height m: 0.4
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-14
day index: 9
strike score:
  final score: 65
  category: Good
  category emoji: ✅
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 14
      out of: 25
      explanation: Moderate alignment: Swell from 183° is 17° off optimal 200°, workable but not ideal.
    swell size:
      score: 16
      out of: 25
      explanation: Marginal size: 2.0m is 0.1m from ideal 2.1m.
    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: 9
      out of: 25
      explanation: Onshore/cross-shore: 12 km/h from 157° (SSE). Destroying wave quality. Offshore range: 60°-120°.
  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: Good surfable conditions at Scarecrows. 2.0m swell from 183° with manageable wind. Solid session guaranteed.
conditions:
  swell:
    height m: 2
    height ft: 6.6
    direction degrees: 183
    direction cardinal: S
    period s: 15
    explanation: 2.0m (6.6ft) swell from 183° (S) at 15s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 157
    direction cardinal: SSE
    explanation: 12 km/h (7 mph) from 157° (SSE)
  secondary swell:
    height m: 1.1
    direction degrees: 171
    direction cardinal: S
    period s: 16
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

Strike Mission
type: Organization