Surf Forecasts:
How big are the waves at Castles Beach today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 7ft (2.2m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 7.5ft (2.3m), 7s period with ENE swell.
- Evening surf: Evening surf (17 Sep, local time) - 6.5ft (2.0m), 9s period with ENE swell.
The current surf forecast for Castles Beach at 11AM is: 2.3m 7s primary swell from a East-northeast direction and 0.2m 16s secondary swell from a South-southwest direction, 0.2m 19s secondary swell from a South-southwest direction (forecast issued at 07:00am September 17). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 7ft (2.2m) | 7s |
| Afternoon (17 Sep) | 7.5ft (2.3m) | 7s |
| Evening (17 Sep) | 6.5ft (2.0m) | 9s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Thu night. Warm (max 27°C on Fri morning, min 26°C on Thu morning). Mainly fresh winds. | |||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||||||||
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) | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 8 | ENE 8 | ENE 8 | E 7 | ENE 8 | ENE 8 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 342 | 476 | 530 | 565 | 545 | 631 | 589 | 494 | 449 | 449 | 460 | 423 | 427 | 406 | 405 | 427 | 393 | 404 | 447 | 509 | 522 | 509 | 501 |
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 | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 7:35AM0.64m | 9:58AM0.64m | 11:15AM0.68m | ||||||||||||||||||||
Low Tide | 11:26PM0.21m | 00:33AM0.25m | |||||||||||||||||||||
 |  | | | | | |  | |  | |  | |  | | | | | | | | | | |
 | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | 1 | 1 | 1 | 1 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | E 10 | SW 16 | SSW 16 | SW 16 | SW 16 | SW 19 | SW 18 | NNE 6 | SW 17 | SSW 17 | SSW 17 | SW 17 | SW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 16 | SW 16 | SW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 |
| kJ | 94 | 66 | 25 | 66 | 40 | 89 | 83 | 41 | 76 | 119 | 116 | 74 | 70 | 107 | 49 | 44 | 99 | 64 | 62 | 48 | 62 | 48 | 86 |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 11 | SSW 19 | SW 19 | SSW 19 | S 10 | S 10 | SSW 18 | SSW 18 | S 10 | S 10 | SE 9 | SSE 8 | SSE 6 | SW 16 | SSW 16 | SSE 8 | S 20 | S 18 | S 18 | S 18 | S 18 | NW 10 |
| kJ | 69 | 2 | 37 | 15 | 36 | 2 | 2 | 124 | 31 | 2 | 2 | 3 | 6 | 4 | 43 | 26 | 7 | 7 | 25 | 25 | 25 | 25 | 4 |
Swell 3 Height (m) Direction Period (s) | S 11 | SW 11 | S 11 | S 20 | S 10 | S 10 | NW 12 | S 10 | S 10 | NW 11 | NW 10 | NW 10 | S 21 | S 21 | S 9 | S 19 | S 20 | S 14 | S 11 | S 13 | SSE 6 | NW 10 | S 8 |
| kJ | 2 | 5 | 2 | 8 | 2 | 2 | 6 | 2 | 2 | 5 | 4 | 4 | 9 | 8 | 2 | 29 | 7 | 4 | 2 | 3 | 4 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 8 | ENE 8 | ENE 8 | E 7 | ENE 8 | ENE 8 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 |
| kJ | 342 | 476 | 530 | 565 | 545 | 631 | 589 | 494 | 449 | 449 | 460 | 423 | 427 | 406 | 405 | 427 | 393 | 404 | 447 | 509 | 522 | 509 | 501 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 45 | 45 | 46 | 41 | 45 | 41 | 41 | 41 | 41 | 45 | 45 | 45 | 45 | 41 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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