Surf Forecasts:
How big are the waves at Castles Beach today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 7ft (2.1m), 7s period with ENE swell.
- Afternoon surf: Afternoon surf (18 Oct, local time) - 6.5ft (2.0m), 7s period with ENE swell.
- Evening surf: Evening surf (18 Oct, local time) - 7.5ft (2.3m), 7s period with ENE swell.
The current surf forecast for Castles Beach at 2AM is: 2.0m 7s primary swell from a East-northeast direction (forecast issued at 07:00pm October 17). An open ocean swell of 0.7m 13s is not directed at the surf break, a second open ocean swell of 0.7m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 7ft (2.1m) | 7s |
| Afternoon (18 Oct) | 6.5ft (2.0m) | 7s |
| Evening (18 Oct) | 7.5ft (2.3m) | 7s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 25°C on Sat night, min 24°C on Mon night). Mainly strong winds. | |||||||||||||||||||
Sat 17 | Sunday 18 | Monday 19 | |||||||||||||||||
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 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 217 | 222 | 319 | 372 | 383 | 397 | 373 | 394 | 419 | 527 | 621 | 558 | 526 | 555 | 555 | 509 | 509 | 509 | 654 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 9:40AM0.67m | 10:32AM0.69m | |||||||||||||||||
Low Tide | 11:18PM0.25m | 1:22AM0.30m | 6:29PM0.32m | ||||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | 6:04 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:02 | — | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | NNW 11 | NNW 11 | NNW 11 | N 13 | N 13 | N 12 | N 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 |
| kJ | 245 | 198 | 191 | 166 | 339 | 314 | 284 | 228 | 224 | 213 | 161 | 151 | 114 | 114 | 116 | 121 | 88 | 88 | 62 |
Swell 2 Height (m) Direction Period (s) | NW 17 | N 13 | N 13 | NNW 10 | NW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 |
| kJ | 47 | 90 | 92 | 102 | 56 | 54 | 54 | 48 | 46 | 62 | 44 | 39 | 52 | 52 | 50 | 20 | 19 | 19 | 19 |
Swell 3 Height (m) Direction Period (s) | S 14 | NW 16 | NW 16 | NW 16 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | N 13 | N 13 | N 13 | S 12 | S 12 | S 12 | S 12 |
| kJ | 15 | 66 | 40 | 64 | 30 | 30 | 30 | 30 | 29 | 12 | 12 | 11 | 32 | 31 | 31 | 11 | 11 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 217 | 222 | 319 | 372 | 383 | 397 | 373 | 394 | 419 | 527 | 621 | 558 | 526 | 555 | 555 | 509 | 509 | 509 | 654 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 49 | 41 | 47 | 51 | 47 | 47 | 47 | 123 | 123 | 51 | 51 | 47 | 45 | 51 | 47 | 50 | 47 | 47 | 51 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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