Surf Forecasts:
How big are the waves at Castles Beach today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 5ft (1.5m), 8s period with E swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 4.5ft (1.3m), 8s period with ENE swell.
- Evening surf: Evening surf (10 Aug, local time) - 4.5ft (1.3m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 1AM is: 1.7m 7s primary swell from a East-northeast direction and 0.3m 9s secondary swell from a Northeast direction (forecast issued at 07:00pm August 09). An open ocean swell of 0.4m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 5ft (1.5m) | 8s |
| Afternoon (10 Aug) | 4.5ft (1.3m) | 8s |
| Evening (10 Aug) | 4.5ft (1.3m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Mon morning, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | |||||||||||||||||
5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 273 | 324 | 327 | 285 | 277 | 258 | 226 | 226 | 196 | 207 | 196 | 215 | 166 | 209 | 176 | 181 | 181 | 181 | 170 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | on | on |
High Tide | 11:49PM0.42m | 1:59PM0.94m | 00:53AM0.47m | 2:32PM0.94m | |||||||||||||||
Low Tide | 8:36PM0.37m | 6:16AM0.03m | 8:52PM0.34m | 7:06AM0.01m | 9:13PM0.30m | ||||||||||||||
 |  | | | | |  | | |  | | | | | | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | 7:05 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:04 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 |
Feels °C | 26 | 25 | 24 | 25 | 25 | 27 | 27 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | SSW 15 | NNW 8 | NNW 8 | NNW 8 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 23 | 35 | 33 | 33 | 31 | 28 | 27 | 26 | 24 | 23 | 46 | 13 | 12 | 11 | 42 | 41 | 40 | 37 | 37 |
Swell 2 Height (m) Direction Period (s) | S 18 | SSW 16 | SSW 16 | NE 9 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | NNW 8 | SSW 15 | SSW 15 | SSW 15 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | S 20 |
| kJ | 24 | 52 | 50 | 12 | 49 | 50 | 49 | 45 | 45 | 46 | 13 | 44 | 44 | 43 | 11 | 11 | 5 | 5 | 67 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSE 10 | SSE 10 | S 16 | NE 9 | NE 8 | NE 8 | NNE 8 | SSE 10 | SSW 12 | NE 8 | SSE 9 | NE 8 | S 11 | S 11 | SSE 9 | S 11 | SSE 9 | NNW 7 |
| kJ | 15 | 9 | 9 | 20 | 12 | 11 | 11 | 7 | 9 | 14 | 9 | 8 | 9 | 10 | 10 | 8 | 9 | 8 | 5 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 |
| kJ | 273 | 324 | 327 | 285 | 277 | 258 | 226 | 226 | 196 | 207 | 196 | 215 | 166 | 209 | 176 | 181 | 181 | 181 | 170 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 18 | 18 | 18 | 18 | 19 | 41 | 41 | 18 | 41 | 19 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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