Surf Forecast for Mandurah Wedge
type: Dataset
description: 10-day surf forecast with Strike Scores for Mandurah Wedge, Mandurah, Australia
about: Mandurah Wedge
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -32.52169
    longitude: 115.71891
  description: Mandurah Wedge is a punchy breakwater setup south of Perth where refracted Indian Ocean swell folds into a steep right-hand wedge. It is best known as a bodyboarding wave: short, fast, and capable of throwing vertical ramps when the bank and backwash line up. The rock wall makes conditions unpredictable, so it suits experienced riders who can read moving water and avoid the structure.
summary:
  best day:
    date: 2026-08-14
    score: 81
    category: Firing
    explanation: Best day in the forecast: 2026-08-14 with a score of 81/100 (Firing)
  firing days count: 1
  firing days:
    date: 2026-08-14
    score: 81
  overall recommendation: Moderate recommendation: Mandurah Wedge has 1 Firing day(s) and 0 Good day(s). Worth considering.
forecasts:
  date: 2026-08-05
  day index: 0
  strike score:
    final score: 61
    category: Fair
    category emoji: 😐
    confidence: 1
    confidence explanation: Very high confidence (0-1 day forecast)
    breakdown:
      swell direction:
        score: 14
        out of: 25
        explanation: Moderate alignment: Swell from 252° is 17° off optimal 235°, workable but not ideal.
      swell size:
        score: 9
        out of: 25
        explanation: Too big: 2.8m exceeds maximum 2.4m. Risk of closeouts.
      swell period:
        score: 22
        out of: 25
        explanation: Good period: 16s is 133% of ideal 12s. Clean, powerful groundswell.
      wind:
        score: 16
        out of: 25
        explanation: Onshore/cross-shore: 9 km/h from 346° (NNW). Destroying wave quality. Offshore range: 45°-90°.
    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 Mandurah Wedge. The 2.8m swell from 252° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 2.8
      height ft: 9.2
      direction degrees: 252
      direction cardinal: WSW
      period s: 16
      explanation: 2.8m (9.2ft) swell from 252° (WSW) at 16s period
    wind:
      speed kmh: 9
      speed mph: 5.6
      direction degrees: 346
      direction cardinal: NNW
      explanation: 9 km/h (6 mph) from 346° (NNW)
forecasts:
  date: 2026-08-06
  day index: 1
  strike score:
    final score: 36
    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 256° is 21° off optimal 235°, workable but not ideal.
      swell size:
        score: 9
        out of: 25
        explanation: Too big: 2.8m exceeds maximum 2.4m. Risk of closeouts.
      swell period:
        score: 22
        out of: 25
        explanation: Good period: 16s is 133% of ideal 12s. Clean, powerful groundswell.
      wind:
        score: 1
        out of: 25
        explanation: Onshore/cross-shore: 15 km/h from 332° (NNW). Destroying wave quality. Offshore range: 45°-90°.
    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 Mandurah Wedge. Either swell direction (256°), size (2.8m), or wind (15 km/h from 332°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 2.8
      height ft: 9.2
      direction degrees: 256
      direction cardinal: WSW
      period s: 16
      explanation: 2.8m (9.2ft) swell from 256° (WSW) at 16s period
    wind:
      speed kmh: 15
      speed mph: 9.3
      direction degrees: 332
      direction cardinal: NNW
      explanation: 15 km/h (9 mph) from 332° (NNW)
    windswell:
      height m: 0.3
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-07
  day index: 2
  strike score:
    final score: 50
    category: Fair
    category emoji: 😐
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 16
        out of: 25
        explanation: Moderate alignment: Swell from 248° is 13° off optimal 235°, workable but not ideal.
      swell size:
        score: 17
        out of: 25
        explanation: Marginal size: 2.4m is 0.8m from ideal 1.6m.
      swell period:
        score: 23
        out of: 25
        explanation: Good period: 15s is 125% of ideal 12s. Clean, powerful groundswell.
      wind:
        score: 2
        out of: 25
        explanation: Onshore/cross-shore: 14 km/h from 222° (SW). Destroying wave quality. Offshore range: 45°-90°.
    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 Mandurah Wedge. The 2.4m swell from 248° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
  conditions:
    swell:
      height m: 2.4
      height ft: 7.9
      direction degrees: 248
      direction cardinal: WSW
      period s: 15
      explanation: 2.4m (7.9ft) swell from 248° (WSW) at 15s period
    wind:
      speed kmh: 14
      speed mph: 8.7
      direction degrees: 222
      direction cardinal: SW
      explanation: 14 km/h (9 mph) from 222° (SW)
    secondary swell:
      height m: 0.4
      direction degrees: 258
      direction cardinal: WSW
      period s: 5
    windswell:
      height m: 0.4
      period s: 2
      explanation: Local wind-generated waves (choppy, short-period)
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 Mandurah Wedge. Either swell direction (246°), size (2.5m), or wind (32 km/h from 215°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T00:34:34.000Z
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: 17
  out of: 25
  explanation: Moderate alignment: Swell from 246° is 11° off optimal 235°, workable but not ideal.
swell size:
  score: 15
  out of: 25
  explanation: Too big: 2.5m exceeds maximum 2.4m. Risk of closeouts.
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: 0
  out of: 25
  explanation: Onshore/cross-shore: 32 km/h from 215° (SW). Destroying wave quality. Offshore range: 45°-90°.

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: 2.5
  height ft: 8.2
  direction degrees: 246
  direction cardinal: WSW
  period s: 13
  explanation: 2.5m (8.2ft) swell from 246° (WSW) at 13s period
wind:
  speed kmh: 32
  speed mph: 19.9
  direction degrees: 215
  direction cardinal: SW
  explanation: 32 km/h (20 mph) from 215° (SW)
windswell:
  height m: 1.3
  period s: 7
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 4
strike score:
  final score: 30
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 15
      out of: 25
      explanation: Moderate alignment: Swell from 250° is 15° off optimal 235°, workable but not ideal.
    swell size:
      score: 3
      out of: 25
      explanation: Too big: 3.5m exceeds maximum 2.4m. Risk of closeouts.
    swell period:
      score: 20
      out of: 25
      explanation: Good period: 17s is 142% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 7
      out of: 25
      explanation: Onshore/cross-shore: 13 km/h from 350° (N). Destroying wave quality. Offshore range: 45°-90°.
  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: 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 Mandurah Wedge. Either swell direction (250°), size (3.5m), or wind (13 km/h from 350°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 3.5
    height ft: 11.5
    direction degrees: 250
    direction cardinal: WSW
    period s: 17
    explanation: 3.5m (11.5ft) swell from 250° (WSW) at 17s period
  wind:
    speed kmh: 13
    speed mph: 8.1
    direction degrees: 350
    direction cardinal: N
    explanation: 13 km/h (8 mph) from 350° (N)
  secondary swell:
    height m: 0.6
    direction degrees: 277
    direction cardinal: W
    period s: 8

date: 2026-08-10
day index: 5
strike score:
  final score: 32
  category: Poor
  category emoji: 💤
  confidence: 0.86
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 21
      out of: 25
      explanation: Good alignment: Swell from 240° is 5° off optimal 235°, still within prime range.
    swell size:
      score: 16
      out of: 25
      explanation: Marginal size: 1.6m is 0.0m from ideal 1.6m.
    swell period:
      score: 22
      out of: 25
      explanation: Good period: 16s is 133% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 28 km/h from 217° (SW). Destroying wave quality. Offshore range: 45°-90°.
  adjustments:
    wind history:
      adjustment: -7
      groomed: false
      morning sickness: true
      explanation: -7 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 Mandurah Wedge. Either swell direction (240°), size (1.6m), or wind (28 km/h from 217°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.6
    height ft: 5.2
    direction degrees: 240
    direction cardinal: WSW
    period s: 16
    explanation: 1.6m (5.2ft) swell from 240° (WSW) at 16s period
  wind:
    speed kmh: 28
    speed mph: 17.4
    direction degrees: 217
    direction cardinal: SW
    explanation: 28 km/h (17 mph) from 217° (SW)
  secondary swell:
    height m: 0.5
    direction degrees: 237
    direction cardinal: WSW
    period s: 9
  windswell:
    height m: 1
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 6
strike score:
  final score: 24
  category: Poor
  category emoji: 💤
  confidence: 0.83
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 18
      out of: 25
      explanation: Moderate alignment: Swell from 245° is 10° off optimal 235°, workable but not ideal.
    swell size:
      score: 12
      out of: 25
      explanation: Too big: 2.6m exceeds maximum 2.4m. Risk of closeouts.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 15s is 125% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 0
      out of: 25
      explanation: Onshore/cross-shore: 17 km/h from 211° (SSW). Destroying wave quality. Offshore range: 45°-90°.
  adjustments:
    wind history:
      adjustment: -14
      groomed: false
      morning sickness: true
      explanation: -14 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 Mandurah Wedge. Either swell direction (245°), size (2.6m), or wind (17 km/h from 211°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2.6
    height ft: 8.5
    direction degrees: 245
    direction cardinal: WSW
    period s: 15
    explanation: 2.6m (8.5ft) swell from 245° (WSW) at 15s period
  wind:
    speed kmh: 17
    speed mph: 10.6
    direction degrees: 211
    direction cardinal: SSW
    explanation: 17 km/h (11 mph) from 211° (SSW)
  secondary swell:
    height m: 0.4
    direction degrees: 228
    direction cardinal: SW
    period s: 6
  windswell:
    height m: 0.4
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 7
strike score:
  final score: 48
  category: Fair
  category emoji: 😐
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 17
      out of: 25
      explanation: Moderate alignment: Swell from 247° is 12° off optimal 235°, workable but not ideal.
    swell size:
      score: 10
      out of: 25
      explanation: Too big: 2.7m exceeds maximum 2.4m. Risk of closeouts.
    swell period:
      score: 20
      out of: 25
      explanation: Good period: 17s is 142% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 11 km/h from 342° (NNW). Destroying wave quality. Offshore range: 45°-90°.
  adjustments:
    wind history:
      adjustment: -7
      groomed: false
      morning sickness: true
      explanation: -7 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: Surfable but not special at Mandurah Wedge. The 2.7m swell from 247° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 2.7
    height ft: 8.9
    direction degrees: 247
    direction cardinal: WSW
    period s: 17
    explanation: 2.7m (8.9ft) swell from 247° (WSW) at 17s period
  wind:
    speed kmh: 11
    speed mph: 6.8
    direction degrees: 342
    direction cardinal: NNW
    explanation: 11 km/h (7 mph) from 342° (NNW)

date: 2026-08-13
day index: 8
strike score:
  final score: 46
  category: Fair
  category emoji: 😐
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 17
      out of: 25
      explanation: Moderate alignment: Swell from 247° is 12° off optimal 235°, workable but not ideal.
    swell size:
      score: 18
      out of: 25
      explanation: Marginal size: 2.3m is 0.6m from ideal 1.6m.
    swell period:
      score: 20
      out of: 25
      explanation: Good period: 17s is 142% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 15 km/h from 332° (NNW). Destroying wave quality. Offshore range: 45°-90°.
  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: Surfable but not special at Mandurah Wedge. The 2.3m swell from 247° is workable, but conditions aren't ideal. Fine if you're local, but not worth a dedicated trip.
conditions:
  swell:
    height m: 2.3
    height ft: 7.5
    direction degrees: 247
    direction cardinal: WSW
    period s: 17
    explanation: 2.3m (7.5ft) swell from 247° (WSW) at 17s period
  wind:
    speed kmh: 15
    speed mph: 9.3
    direction degrees: 332
    direction cardinal: NNW
    explanation: 15 km/h (9 mph) from 332° (NNW)
  windswell:
    height m: 0.3
    period s: 2
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-14
day index: 9
strike score:
  final score: 81
  category: Firing
  category emoji: 🔥
  confidence: 0.8
  confidence explanation: Very low confidence (8-10 day forecast, conditions may change)
  breakdown:
    swell direction:
      score: 16
      out of: 25
      explanation: Moderate alignment: Swell from 249° is 14° off optimal 235°, workable but not ideal.
    swell size:
      score: 18
      out of: 25
      explanation: Marginal size: 2.3m is 0.6m from ideal 1.6m.
    swell period:
      score: 22
      out of: 25
      explanation: Good period: 16s is 133% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 25
      out of: 25
      explanation: Light offshore: 6 km/h from 68° (ENE). 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: Excellent conditions at Mandurah Wedge. The 2.3m swell from 249° aligns well with the spot, and light offshore winds are grooming the face. Worth planning a trip around this.
conditions:
  swell:
    height m: 2.3
    height ft: 7.5
    direction degrees: 249
    direction cardinal: WSW
    period s: 16
    explanation: 2.3m (7.5ft) swell from 249° (WSW) at 16s period
  wind:
    speed kmh: 6
    speed mph: 3.7
    direction degrees: 68
    direction cardinal: ENE
    explanation: 6 km/h (4 mph) from 68° (ENE)

Strike Mission
type: Organization