Surf Forecasts:
How big are the waves at Castles Beach today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 6.5ft (2.0m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 6ft (1.9m), 8s period with ENE swell.
- Evening surf: Evening surf (18 Sep, local time) - 6ft (1.9m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 5PM is: 1.9m 8s primary swell from a East-northeast direction and 0.2m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm September 18). An open ocean swell of 0.4m 17s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 6.5ft (2.0m) | 8s |
| Afternoon (18 Sep) | 6ft (1.9m) | 8s |
| Evening (18 Sep) | 6ft (1.9m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Sun night). Mainly fresh winds. | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 7 | E 7 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 472 | 461 | 450 | 406 | 394 | 420 | 445 | 473 | 473 | 522 | 522 | 522 | 509 | 427 | 383 | 383 | 293 | 308 | 317 | 299 | 366 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on |
High Tide | 9:58AM0.64m | 11:15AM0.68m | 11:53AM0.71m | 11:00PM0.37m | |||||||||||||||||
Low Tide | 00:33AM0.25m | 3:03AM0.26m | 7:51PM0.34m | ||||||||||||||||||
 | | |  | |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 26 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | 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 | SSW 16 | SSW 16 | SSW 16 | E 10 | SSW 15 | SSW 15 | S 15 | SSW 15 |
| kJ | 116 | 74 | 70 | 107 | 104 | 44 | 99 | 64 | 61 | 48 | 62 | 48 | 86 | 86 | 86 | 85 | 52 | 73 | 74 | 115 | 74 |
Swell 2 Height (m) Direction Period (s) | S 10 | SE 9 | SSE 7 | NW 9 | NW 9 | SSW 16 | S 20 | S 20 | S 18 | S 18 | S 18 | S 18 | S 9 | S 13 | SSW 13 | SE 8 | SSW 15 | N 11 | N 11 | N 11 | N 11 |
| kJ | 2 | 3 | 5 | 3 | 3 | 26 | 7 | 7 | 25 | 25 | 25 | 25 | 2 | 3 | 17 | 2 | 79 | 2 | 9 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | NW 10 | S 21 | S 21 | S 21 | NW 9 | S 19 | S 20 | S 14 | S 9 | SE 8 | SSE 8 | SSE 6 | NW 10 | N 12 | N 12 | N 11 | N 11 | NW 9 | NW 9 | NW 9 | NW 8 |
| kJ | 4 | 9 | 9 | 9 | 3 | 29 | 67 | 4 | 1 | 3 | 6 | 4 | 4 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | E 7 | E 7 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 7 |
| kJ | 472 | 461 | 450 | 406 | 394 | 420 | 445 | 473 | 473 | 522 | 522 | 522 | 509 | 427 | 383 | 383 | 293 | 308 | 317 | 299 | 366 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 45 | 250 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 41 | 41 | 41 | 41 | 41 | 45 | 47 | 45 | 45 | 45 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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