Surf Forecast for Mullaghmore Head
type: Dataset
description: 10-day surf forecast with Strike Scores for Mullaghmore Head, County Sligo, Ireland
about: Mullaghmore Head
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: 54.47
    longitude: -8.45
  description: Mullaghmore Head is Ireland's premier big wave slab—a terrifying left that combines Teahupo'o's thick lip with Shipstern's mutant steps to create one of Europe's most challenging waves. When massive North Atlantic swells wrap around the Irish headland, Mullaghmore produces ledging barrels in the 30-50 foot range that defy physics. The wave breaks close to shore, allowing dramatic spectating from the cliffs. Cold water, hostile weather, and serious consequences make this a proving ground for Europe's bravest.
summary:
  best day:
    date: 2026-08-11
    score: 15
    category: Poor
    explanation: Best day in the forecast: 2026-08-11 with a score of 15/100 (Poor)
  firing days count: 0
  overall recommendation: Poor conditions overall: Average score 2/100. Look for spots with better forecasts.
forecasts:
  date: 2026-08-05
  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: 8
        out of: 25
        explanation: Poor alignment: Swell from 326° is 34° off optimal 292°, barely within workable range 270°-315°.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.8m is below minimum 3.0m. Waves will be weak/mushy.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 8s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 0
        out of: 25
        explanation: Onshore/cross-shore: 35 km/h from 299° (WNW). Destroying wave quality. Offshore range: 123°-213°.
    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 Mullaghmore Head. Either swell direction (326°), size (0.8m), or wind (35 km/h from 299°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.8
      height ft: 2.6
      direction degrees: 326
      direction cardinal: NW
      period s: 8
      peak period s: 8.3
      explanation: 0.8m (2.6ft) swell from 326° (NW) at 8.3s period
    wind:
      speed kmh: 35
      speed mph: 21.7
      direction degrees: 299
      direction cardinal: WNW
      explanation: 35 km/h (22 mph) from 299° (WNW)
    windswell:
      height m: 1.8
      period s: 5
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-06
  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: 23
        out of: 25
        explanation: Good alignment: Swell from 289° is 3° off optimal 292°, still within prime range.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.9m is below minimum 3.0m. Waves will be weak/mushy.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 6s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 1
        out of: 25
        explanation: Onshore/cross-shore: 15 km/h from 270° (W). Destroying wave quality. Offshore range: 123°-213°.
    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 Mullaghmore Head. Either swell direction (289°), size (0.9m), or wind (15 km/h from 270°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.9
      height ft: 3.0
      direction degrees: 289
      direction cardinal: WNW
      period s: 6
      peak period s: 5.8
      explanation: 0.9m (3.0ft) swell from 289° (WNW) at 5.8s period
    wind:
      speed kmh: 15
      speed mph: 9.3
      direction degrees: 270
      direction cardinal: W
      explanation: 15 km/h (9 mph) from 270° (W)
    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: 0
    category: Poor
    category emoji: 💤
    confidence: 0.95
    confidence explanation: High confidence (2-3 day forecast)
    breakdown:
      swell direction:
        score: 21
        out of: 25
        explanation: Good alignment: Swell from 287° is 5° off optimal 292°, still within prime range.
      swell size:
        score: 2
        out of: 25
        explanation: Too small: 1.6m is below minimum 3.0m. Waves will be weak/mushy.
      swell period:
        score: 1
        out of: 25
        explanation: Short period: 8s is below minimum 12s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 1
        out of: 25
        explanation: Onshore/cross-shore: 24 km/h from 237° (WSW). Destroying wave quality. Offshore range: 123°-213°.
    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: Poor conditions at Mullaghmore Head. Either swell direction (287°), size (1.6m), or wind (24 km/h from 237°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 1.6
      height ft: 5.2
      direction degrees: 287
      direction cardinal: WNW
      period s: 8
      peak period s: 8.2
      explanation: 1.6m (5.2ft) swell from 287° (WNW) at 8.2s period
    wind:
      speed kmh: 24
      speed mph: 14.9
      direction degrees: 237
      direction cardinal: WSW
      explanation: 24 km/h (15 mph) from 237° (WSW)
    windswell:
      height m: 0.6
      period s: 3
      explanation: Local wind-generated waves (choppy, short-period)
forecasts:
  date: 2026-08-08
  day index: 3
  strike score:
    final score: 0
    category: Poor
    category emoji: 💤
    confidence: 0.92
    confidence explanation: High confidence (2-3 day forecast)
    summary: Poor conditions at Mullaghmore Head. Either swell direction (281°), size (1.7m), or wind (22 km/h from 233°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-05T00:29:51.242Z
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 281° is 11° off optimal 292°, workable but not ideal.
swell size:
  score: 2
  out of: 25
  explanation: Too small: 1.7m is below minimum 3.0m. Waves will be weak/mushy.
swell period:
  score: 2
  out of: 25
  explanation: Short period: 9s is below minimum 12s. Windswell-dominated (choppy, weak waves).
wind:
  score: 1
  out of: 25
  explanation: Onshore/cross-shore: 22 km/h from 233° (SW). Destroying wave quality. Offshore range: 123°-213°.

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.

swell:
  height m: 1.7
  height ft: 5.6
  direction degrees: 281
  direction cardinal: W
  period s: 9
  explanation: 1.7m (5.6ft) swell from 281° (W) at 9s period
wind:
  speed kmh: 22
  speed mph: 13.7
  direction degrees: 233
  direction cardinal: SW
  explanation: 22 km/h (14 mph) from 233° (SW)
windswell:
  height m: 0.5
  period s: 3
  explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-09
day index: 4
strike score:
  final score: 0
  category: Poor
  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 283° is 9° off optimal 292°, workable but not ideal.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 1.4m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 20 km/h from 267° (W). Destroying wave quality. Offshore range: 123°-213°.
  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 Mullaghmore Head. Either swell direction (283°), size (1.4m), or wind (20 km/h from 267°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.4
    height ft: 4.6
    direction degrees: 283
    direction cardinal: WNW
    period s: 10
    explanation: 1.4m (4.6ft) swell from 283° (WNW) at 10s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 267
    direction cardinal: W
    explanation: 20 km/h (12 mph) from 267° (W)
  windswell:
    height m: 1.3
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-10
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: 24
      out of: 25
      explanation: Perfect alignment: Swell from 291° is within 5° of optimal 292°.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 1.8m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 9s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 16 km/h from 274° (W). Destroying wave quality. Offshore range: 123°-213°.
  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: -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 Mullaghmore Head. Either swell direction (291°), size (1.8m), or wind (16 km/h from 274°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1.8
    height ft: 5.9
    direction degrees: 291
    direction cardinal: WNW
    period s: 9
    explanation: 1.8m (5.9ft) swell from 291° (WNW) at 9s period
  wind:
    speed kmh: 16
    speed mph: 9.9
    direction degrees: 274
    direction cardinal: W
    explanation: 16 km/h (10 mph) from 274° (W)
  secondary swell:
    height m: 0.4
    direction degrees: 274
    direction cardinal: W
    period s: 5
  windswell:
    height m: 0.9
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-11
day index: 6
strike score:
  final score: 15
  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 302° is 10° off optimal 292°, workable but not ideal.
    swell size:
      score: 1
      out of: 25
      explanation: Too small: 1.0m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 8s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 18
      out of: 25
      explanation: Strong offshore: 20 km/h from 144° (SE). Grooming but may make paddling difficult.
  adjustments:
    wind history:
      adjustment: -4
      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 Mullaghmore Head. Either swell direction (302°), size (1.0m), or wind (20 km/h from 144°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 1
    height ft: 3.3
    direction degrees: 302
    direction cardinal: WNW
    period s: 8
    explanation: 1.0m (3.3ft) swell from 302° (WNW) at 8s period
  wind:
    speed kmh: 20
    speed mph: 12.4
    direction degrees: 144
    direction cardinal: SE
    explanation: 20 km/h (12 mph) from 144° (SE)
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-12
day index: 7
strike score:
  final score: 0
  category: Poor
  category emoji: 💤
  confidence: 0.8
  confidence explanation: Low confidence (6-7 day forecast)
  breakdown:
    swell direction:
      score: 9
      out of: 25
      explanation: Poor alignment: Swell from 262° is 30° off optimal 292°, barely within workable range 270°-315°.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.5m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 10s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 1
      out of: 25
      explanation: Onshore/cross-shore: 31 km/h from 217° (SW). Destroying wave quality. Offshore range: 123°-213°.
  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 Mullaghmore Head. Either swell direction (262°), size (0.5m), or wind (31 km/h from 217°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.5
    height ft: 1.6
    direction degrees: 262
    direction cardinal: W
    period s: 10
    explanation: 0.5m (1.6ft) swell from 262° (W) at 10s period
  wind:
    speed kmh: 31
    speed mph: 19.3
    direction degrees: 217
    direction cardinal: SW
    explanation: 31 km/h (19 mph) from 217° (SW)
  windswell:
    height m: 1.4
    period s: 4
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-13
day index: 8
strike score:
  final score: 5
  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 289° is 3° off optimal 292°, still within prime range.
    swell size:
      score: 2
      out of: 25
      explanation: Too small: 2.0m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 8s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 5
      out of: 25
      explanation: Onshore/cross-shore: 14 km/h from 236° (SW). Destroying wave quality. Offshore range: 123°-213°.
  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 Mullaghmore Head. Either swell direction (289°), size (2.0m), or wind (14 km/h from 236°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 2
    height ft: 6.6
    direction degrees: 289
    direction cardinal: WNW
    period s: 8
    explanation: 2.0m (6.6ft) swell from 289° (WNW) at 8s period
  wind:
    speed kmh: 14
    speed mph: 8.7
    direction degrees: 236
    direction cardinal: SW
    explanation: 14 km/h (9 mph) from 236° (SW)
  secondary swell:
    height m: 0.4
    direction degrees: 258
    direction cardinal: WSW
    period s: 6
  windswell:
    height m: 0.5
    period s: 3
    explanation: Local wind-generated waves (choppy, short-period)

date: 2026-08-14
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: 15
      out of: 25
      explanation: Moderate alignment: Swell from 277° is 15° off optimal 292°, workable but not ideal.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.4m is below minimum 3.0m. Waves will be weak/mushy.
    swell period:
      score: 1
      out of: 25
      explanation: Short period: 8s is below minimum 12s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 6
      out of: 25
      explanation: Onshore/cross-shore: 12 km/h from 289° (WNW). Destroying wave quality. Offshore range: 123°-213°.
  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: Poor conditions at Mullaghmore Head. Either swell direction (277°), size (0.4m), or wind (12 km/h from 289°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.4
    height ft: 1.3
    direction degrees: 277
    direction cardinal: W
    period s: 8
    explanation: 0.4m (1.3ft) swell from 277° (W) at 8s period
  wind:
    speed kmh: 12
    speed mph: 7.5
    direction degrees: 289
    direction cardinal: WNW
    explanation: 12 km/h (7 mph) from 289° (WNW)

Strike Mission
type: Organization