Surf Forecast for Nightcliff
type: Dataset
description: 10-day surf forecast with Strike Scores for Nightcliff, Darwin, Australia
about: Nightcliff
  type: TouristAttraction
  geo: GeoCoordinates
    latitude: -12.3833
    longitude: 130.85
  description: Nightcliff is Darwin's most consistent surf spot—a reef break in Australia's tropical north where crocodiles share the lineup. When cyclone swells from the Timor Sea push toward the coast during the wet season, Nightcliff can produce quality right-hand waves. The catch? Saltwater crocodiles are a genuine risk, as are box jellyfish and sharks. Local surfers check government croc warnings, wear stinger suits, and surf in groups. This is frontier surfing in one of the world's most dangerous marine environments, but for the dedicated few, it's worth the risk.
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 5/100. 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: 0
        out of: 25
        explanation: No alignment: Swell from 47° is outside workable range 280°-340°. Wrong swell direction for this spot.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.2m is below minimum 0.8m. Waves will be weak/mushy.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 23
        out of: 25
        explanation: Moderate offshore: 12 km/h from 67° (ENE). Still grooming but noticeable wind.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      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 Nightcliff. Either swell direction (47°), size (0.2m), or wind (12 km/h from 67°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.2
      height ft: 0.7
      direction degrees: 47
      direction cardinal: NE
      period s: 3
      explanation: 0.2m (0.7ft) swell from 47° (NE) at 3s period
    wind:
      speed kmh: 12
      speed mph: 7.5
      direction degrees: 67
      direction cardinal: ENE
      explanation: 12 km/h (7 mph) from 67° (ENE)
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: 0
        out of: 25
        explanation: No alignment: Swell from 46° is outside workable range 280°-340°. Wrong swell direction for this spot.
      swell size:
        score: 1
        out of: 25
        explanation: Too small: 0.2m is below minimum 0.8m. Waves will be weak/mushy.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 19
        out of: 25
        explanation: Moderate offshore: 11 km/h from 60° (ENE). Still grooming but noticeable wind.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      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 Nightcliff. Either swell direction (46°), size (0.2m), or wind (11 km/h from 60°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.2
      height ft: 0.7
      direction degrees: 46
      direction cardinal: NE
      period s: 3
      explanation: 0.2m (0.7ft) swell from 46° (NE) at 3s period
    wind:
      speed kmh: 11
      speed mph: 6.8
      direction degrees: 60
      direction cardinal: ENE
      explanation: 11 km/h (7 mph) from 60° (ENE)
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: 0
        out of: 25
        explanation: No alignment: Swell from 32° is outside workable range 280°-340°. Wrong swell direction for this spot.
      swell size:
        score: 0
        out of: 25
        explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 4s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 16
        out of: 25
        explanation: Moderate offshore: 11 km/h from 52° (NE). Still grooming but noticeable wind.
    adjustments:
      wind history:
        adjustment: 6
        groomed: true
        morning sickness: false
        explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
      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 Nightcliff. Either swell direction (32°), size (0.1m), or wind (11 km/h from 52°) is unfavorable. Consider other spots or wait for better conditions.
  conditions:
    swell:
      height m: 0.1
      height ft: 0.3
      direction degrees: 32
      direction cardinal: NNE
      period s: 4
      explanation: 0.1m (0.3ft) swell from 32° (NNE) at 4s period
    wind:
      speed kmh: 11
      speed mph: 6.8
      direction degrees: 52
      direction cardinal: NE
      explanation: 11 km/h (7 mph) from 52° (NE)
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)
    breakdown:
      swell direction:
        score: 0
        out of: 25
        explanation: No alignment: Swell from 33° is outside workable range 280°-340°. Wrong swell direction for this spot.
      swell size:
        score: 0
        out of: 25
        explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
      swell period:
        score: 0
        out of: 25
        explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
      wind:
        score: 16
        out of: 25
        explanation: Moderate offshore: 11 km/h from 45° (NE). Still grooming but noticeable wind.
    summary: Poor conditions at Nightcliff. Either swell direction (33°), size (0.1m), or wind (11 km/h from 45°) is unfavorable. Consider other spots or wait for better conditions.
provider: Strike Mission
date published: 2026-08-04T23:08:33.593Z
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)

wind history:
  adjustment: 6
  groomed: true
  morning sickness: false
  explanation: +6 points: Multiple days of offshore wind have groomed the ocean surface, creating ultra-clean conditions.
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: 0.1
  height ft: 0.3
  direction degrees: 33
  direction cardinal: NNE
  period s: 3
  explanation: 0.1m (0.3ft) swell from 33° (NNE) at 3s period
wind:
  speed kmh: 11
  speed mph: 6.8
  direction degrees: 45
  direction cardinal: NE
  explanation: 11 km/h (7 mph) from 45° (NE)

date: 2026-08-09
day index: 4
strike score:
  final score: 15
  category: Poor
  category emoji: 💤
  confidence: 0.89
  confidence explanation: Moderate confidence (4-5 day forecast)
  breakdown:
    swell direction:
      score: 11
      out of: 25
      explanation: Moderate alignment: Swell from 285° is 25° off optimal 310°, workable but not ideal.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.0m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 23
      out of: 25
      explanation: Good period: 11s is 92% of ideal 12s. Clean, powerful groundswell.
    wind:
      score: 13
      out of: 25
      explanation: Onshore/cross-shore: 10 km/h from 20° (NNE). Destroying wave quality. Offshore range: 45°-135°.
  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 Nightcliff. Either swell direction (285°), size (0.0m), or wind (10 km/h from 20°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0
    height ft: 0.0
    direction degrees: 285
    direction cardinal: WNW
    period s: 11
    explanation: 0.0m (0.0ft) swell from 285° (WNW) at 11s period
  wind:
    speed kmh: 10
    speed mph: 6.2
    direction degrees: 20
    direction cardinal: NNE
    explanation: 10 km/h (6 mph) from 20° (NNE)

date: 2026-08-10
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: 8
      out of: 25
      explanation: Poor alignment: Swell from 277° is 33° off optimal 310°, barely within workable range 280°-340°.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.1m 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: 20
      out of: 25
      explanation: Onshore/cross-shore: 7 km/h from 12° (NNE). Destroying wave quality. Offshore range: 45°-135°.
  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 Nightcliff. Either swell direction (277°), size (0.1m), or wind (7 km/h from 12°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.1
    height ft: 0.3
    direction degrees: 277
    direction cardinal: W
    period s: 8
    explanation: 0.1m (0.3ft) swell from 277° (W) at 8s period
  wind:
    speed kmh: 7
    speed mph: 4.3
    direction degrees: 12
    direction cardinal: NNE
    explanation: 7 km/h (4 mph) from 12° (NNE)

date: 2026-08-11
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: 11
      out of: 25
      explanation: Moderate alignment: Swell from 284° is 26° off optimal 310°, workable but not ideal.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 2
      out of: 25
      explanation: Short period: 6s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 18
      out of: 25
      explanation: Onshore/cross-shore: 8 km/h from 21° (NNE). Destroying wave quality. Offshore range: 45°-135°.
  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 Nightcliff. Either swell direction (284°), size (0.1m), or wind (8 km/h from 21°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.1
    height ft: 0.3
    direction degrees: 284
    direction cardinal: WNW
    period s: 6
    explanation: 0.1m (0.3ft) swell from 284° (WNW) at 6s period
  wind:
    speed kmh: 8
    speed mph: 5.0
    direction degrees: 21
    direction cardinal: NNE
    explanation: 8 km/h (5 mph) from 21° (NNE)

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: 0
      out of: 25
      explanation: No alignment: Swell from 29° is outside workable range 280°-340°. Wrong swell direction for this spot.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 0
      out of: 25
      explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 11 km/h from 31° (NNE). Destroying wave quality. Offshore range: 45°-135°.
  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 Nightcliff. Either swell direction (29°), size (0.1m), or wind (11 km/h from 31°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.1
    height ft: 0.3
    direction degrees: 29
    direction cardinal: NNE
    period s: 3
    explanation: 0.1m (0.3ft) swell from 29° (NNE) at 3s period
  wind:
    speed kmh: 11
    speed mph: 6.8
    direction degrees: 31
    direction cardinal: NNE
    explanation: 11 km/h (7 mph) from 31° (NNE)

date: 2026-08-13
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 43° is outside workable range 280°-340°. Wrong swell direction for this spot.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 0
      out of: 25
      explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 11
      out of: 25
      explanation: Onshore/cross-shore: 11 km/h from 35° (NE). Destroying wave quality. Offshore range: 45°-135°.
  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 Nightcliff. Either swell direction (43°), size (0.1m), or wind (11 km/h from 35°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.1
    height ft: 0.3
    direction degrees: 43
    direction cardinal: NE
    period s: 3
    explanation: 0.1m (0.3ft) swell from 43° (NE) at 3s period
  wind:
    speed kmh: 11
    speed mph: 6.8
    direction degrees: 35
    direction cardinal: NE
    explanation: 11 km/h (7 mph) from 35° (NE)

date: 2026-08-14
day index: 9
strike score:
  final score: 8
  category: Poor
  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 333° is 23° off optimal 310°, workable but not ideal.
    swell size:
      score: 0
      out of: 25
      explanation: Too small: 0.1m is below minimum 0.8m. Waves will be weak/mushy.
    swell period:
      score: 0
      out of: 25
      explanation: Short period: 3s is below minimum 8s. Windswell-dominated (choppy, weak waves).
    wind:
      score: 19
      out of: 25
      explanation: Light offshore: 9 km/h from 130° (SE). 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 Nightcliff. Either swell direction (333°), size (0.1m), or wind (9 km/h from 130°) is unfavorable. Consider other spots or wait for better conditions.
conditions:
  swell:
    height m: 0.1
    height ft: 0.3
    direction degrees: 333
    direction cardinal: NNW
    period s: 3
    explanation: 0.1m (0.3ft) swell from 333° (NNW) at 3s period
  wind:
    speed kmh: 9
    speed mph: 5.6
    direction degrees: 130
    direction cardinal: SE
    explanation: 9 km/h (6 mph) from 130° (SE)

Strike Mission
type: Organization