Surf Forecasts:
How big are the waves at Castles Beach today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 2.5ft (0.7m), 16s period with S swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 5.5ft (1.7m), 6s period with ENE swell.
- Evening surf: Evening surf (13 Aug, local time) - 6ft (1.9m), 7s period with ENE swell.
The current surf forecast for Castles Beach at 10PM is: 2.0m 7s primary swell from a East-northeast direction and 0.6m 15s secondary swell from a South direction (forecast issued at 01:00pm August 13). An open ocean swell of 0.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 2.5ft (0.7m) | 16s |
| Afternoon (13 Aug) | 5.5ft (1.7m) | 6s |
| Evening (13 Aug) | 6ft (1.9m) | 7s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 43mm), heaviest during Sun morning. Warm (max 26°C on Thu afternoon, min 25°C on Thu afternoon). Winds increasing (fresh winds from the ENE on Thu night, near gales from the E by Sat night). | |||||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | |||||||||||||||||||
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 | 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 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 9 | E 9 | ENE 9 | E 9 | E 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 197 | 226 | 233 | 289 | 350 | 382 | 432 | 485 | 494 | 520 | 534 | 574 | 749 | 871 | 1081 | 1295 | 1537 | 1610 | 1830 | 1979 | 2231 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 3:30PM0.88m | 3:21AM0.59m | 3:54PM0.82m | 4:08AM0.61m | 4:13PM0.75m | ||||||||||||||||
Low Tide | 8:33AM0.07m | 9:59PM0.24m | 9:13AM0.15m | 10:23PM0.21m | 9:51AM0.24m | 10:47PM0.20m | |||||||||||||||
 | | |  | |  | | |  | | | | |  | |  | |  | | |  | |
 | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 |
Temp °C | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 22 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
| kJ | 183 | 174 | 161 | 159 | 159 | 159 | 159 | 155 | 106 | 106 | 102 | 102 | 100 | 62 | 58 | 56 | 55 | 55 | 54 | 54 | 55 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 |
| kJ | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 8 |
Swell 3 Height (m) Direction Period (s) | S 9 | S 9 | — | — | — | S 18 | — | S 11 | — | — | S 18 | SW 18 | SW 18 | SSW 17 | SW 18 | — | N 9 | S 16 | S 19 | S 17 | S 18 |
| kJ | 2 | 2 | — | — | — | 6 | — | 2 | — | — | 6 | 12 | 12 | 29 | 12 | — | 2 | 5 | 7 | 22 | 25 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 9 | E 9 | ENE 9 | E 9 | E 9 |
| kJ | 197 | 226 | 233 | 289 | 350 | 382 | 432 | 485 | 494 | 520 | 534 | 574 | 749 | 871 | 1081 | 1295 | 1537 | 1610 | 1830 | 1979 | 2231 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 125 | 49 | 41 | 41 | 42 | 41 | 123 | 49 | 125 | 125 | 49 | 205 | 205 | 205 | 128 | 205 | 154 | 205 | 155 | 205 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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