Surf Forecasts:
How big are the waves at Castles Beach today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 6ft (1.9m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 6ft (1.9m), 8s period with ENE swell.
- Evening surf: Evening surf (31 Aug, local time) - 6ft (1.9m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 2PM is: 1.9m 8s primary swell from a East-northeast direction and 0.3m 11s secondary swell from a South direction, 0.2m 15s secondary swell from a South-southwest direction (forecast issued at 07:00am August 31). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 6ft (1.9m) | 7s |
| Afternoon (31 Aug) | 6ft (1.9m) | 8s |
| Evening (31 Aug) | 6ft (1.9m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Warm (max 26°C on Mon afternoon, min 25°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||||
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 | 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 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 373 | 376 | 429 | 419 | 419 | 459 | 419 | 419 | 410 | 430 | 441 | 432 | 483 | 545 | 514 | 483 | 475 | 469 | 444 | 477 | 445 | 477 | 572 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | cross-on |
High Tide | 4:29AM0.68m | 3:51PM0.67m | 5:22AM0.68m | 4:02PM0.61m | 6:31AM0.67m | 3:59PM0.56m | |||||||||||||||||
Low Tide | 10:11AM0.34m | 10:30PM0.13m | 10:57AM0.42m | 11:01PM0.13m | 12:04PM0.50m | ||||||||||||||||||
 |  | | | | |  | | | | | |  |  | | |  |  | | | | | | |
 | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 22 | 22 | 22 | 24 | 22 | 22 | 23 | 22 | 23 | 22 | 23 | 25 | 23 | 23 | 23 | 24 | 24 | 23 | 25 | 25 | 25 | 25 | 22 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | SSW 19 | SSW 19 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | S 18 | SSW 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | E 13 |
| kJ | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 74 | 73 | 68 | 107 | 63 | 107 | 107 | 98 | 99 | 53 | 137 | 130 | 82 | 79 | 72 | 87 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 19 | SSW 19 | S 10 | S 10 | S 10 | S 10 | S 9 | S 12 | S 12 | S 12 | S 10 | SSW 16 | S 10 | E 14 | E 14 | E 14 | E 14 | S 15 |
| kJ | 22 | 22 | 21 | 21 | 21 | 73 | 74 | 18 | 8 | 7 | 7 | 7 | 11 | 10 | 11 | 8 | 50 | 8 | 33 | 37 | 66 | 37 | 70 |
Swell 3 Height (m) Direction Period (s) | S 19 | S 19 | S 21 | S 21 | S 19 | SW 14 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | S 12 | E 15 | E 15 | SE 11 | E 14 | E 13 | E 16 | S 10 | S 10 | S 11 | E 12 | S 11 |
| kJ | 7 | 7 | 8 | 8 | 29 | 7 | 18 | 7 | 7 | 8 | 8 | 3 | 4 | 4 | 5 | 14 | 14 | 20 | 8 | 8 | 23 | 26 | 9 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
| kJ | 373 | 376 | 429 | 419 | 419 | 459 | 419 | 419 | 410 | 430 | 441 | 432 | 483 | 545 | 514 | 483 | 475 | 469 | 444 | 477 | 445 | 477 | 572 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 41 | 49 | 50 | 123 | 45 | 45 | 41 | 41 | 41 | 41 | 41 | 123 | 123 | 45 | 41 | 41 | 41 | 41 | 45 | 49 | 49 | 45 | 45 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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