Surf Forecasts:
How big are the waves at Castles Beach today (15 Aug):
- Afternoon surf: Afternoon surf (15 Aug, local time) - 7ft (2.1m), 8s period with ENE swell.
- Evening surf: Evening surf (15 Aug, local time) - 7.5ft (2.3m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 12AM is: 2.5m 8s primary swell from a East-northeast direction and 0.5m 14s secondary swell from a South direction (forecast issued at 07:00pm August 14). An open ocean swell of 0.2m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | - | - |
| Afternoon (15 Aug) | 7ft (2.1m) | 8s |
| Evening (15 Aug) | 7.5ft (2.3m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 61mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 25°C on Fri night). Winds decreasing (near gales from the ENE on Sat night, moderate winds from the E by Mon afternoon). | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | |||||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 9 | ENE 9 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 534 | 623 | 699 | 928 | 1098 | 1452 | 1938 | 2457 | 2457 | 2717 | 3587 | 5002 | 3411 | 1822 | 1423 | 1064 | 851 | 688 | 599 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 3:54PM0.82m | 4:08AM0.61m | 4:13PM0.75m | 4:57AM0.62m | 4:27PM0.68m | ||||||||||||||
Low Tide | 10:23PM0.21m | 9:51AM0.24m | 10:47PM0.20m | 10:29AM0.33m | |||||||||||||||
 |  | |  | |  |  | | |  | |  | |  | | | | | | |
 | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 5 | 18 | 9 | 10 | 5 | 3 | 2 | 1 |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 27 | 26 |
Feels °C | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 22 | 22 | 21 | 18 | 18 | 19 | 23 | 23 | 25 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 14 | SSE 10 | SSE 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 102 | 102 | 100 | 62 | 58 | 56 | 55 | 55 | 30 | 30 | 31 | 63 | 37 | 275 | 222 | 158 | 119 | 79 | 58 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | S 20 | S 20 | S 16 | NNW 8 | S 17 | S 18 | NNW 9 | S 18 | NNW 8 | S 16 | S 16 | S 16 | S 16 | S 16 |
| kJ | 6 | 6 | 6 | 6 | 6 | 8 | 7 | 5 | 7 | 22 | 24 | 8 | 25 | 7 | 47 | 46 | 46 | 45 | 45 |
Swell 3 Height (m) Direction Period (s) | S 18 | SW 18 | SW 18 | SSW 17 | SW 17 | — | S 20 | S 19 | S 16 | NNW 9 | SW 16 | S 18 | W 19 | S 15 | NNW 8 | S 13 | S 13 | S 13 | S 13 |
| kJ | 6 | 12 | 12 | 29 | 12 | — | 30 | 7 | 21 | 8 | 10 | 25 | 7 | 17 | 6 | 13 | 30 | 30 | 30 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | E 9 | ENE 9 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 534 | 623 | 699 | 928 | 1098 | 1452 | 1938 | 2457 | 2457 | 2717 | 3587 | 5002 | 3411 | 1822 | 1423 | 1064 | 851 | 688 | 599 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 126 | 128 | 51 | 205 | 205 | 205 | 205 | 205 | 205 | 205 | 205 | 213 | 213 | 163 | 43 | 123 | 42 | 43 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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