Surf Forecasts:
How big are the waves at Castles Beach today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 6ft (1.8m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 5.5ft (1.7m), 8s period with ENE swell.
- Evening surf: Evening surf (21 Oct, local time) - 5.5ft (1.7m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 11AM is: 1.7m 8s primary swell from a East-northeast direction and 0.2m 12s secondary swell from a South direction (forecast issued at 07:00am October 21). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 6ft (1.8m) | 8s |
| Afternoon (21 Oct) | 5.5ft (1.7m) | 8s |
| Evening (21 Oct) | 5.5ft (1.7m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 24°C on Thu night). Mainly fresh winds. | |||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | |||||||||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | ENE 8 | NE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 397 | 373 | 336 | 336 | 302 | 336 | 322 | 280 | 244 | 214 | 204 | 199 | 172 | 186 | 154 | 154 | 158 | 136 | 136 | 126 | 140 | 123 | 120 |
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 | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:35AM0.71m | 00:23AM0.57m | 12:01PM0.70m | 00:58AM0.66m | 12:26PM0.68m | ||||||||||||||||||
Low Tide | 4:53AM0.31m | 6:23PM0.23m | 5:51AM0.31m | 6:35PM0.18m | 6:41AM0.31m | 6:53PM0.12m | |||||||||||||||||
 |  | | | | | | |  |  | | | | | | | | | | | | |  | |
 | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 24 |
Feels °C | 22 | 23 | 22 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 24 | 25 | 26 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | N 10 | N 9 | N 9 | N 9 | N 9 | N 9 | N 9 | N 9 | NW 12 | NW 11 | NW 11 | E 13 | NW 11 | NW 12 | E 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 22 | 20 | 19 | 31 | 19 | 50 | 29 | 154 | 158 | 136 | 136 | 126 | 87 | 99 | 120 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | NW 12 | NW 12 | NNW 12 | NW 12 | N 8 | N 8 | N 8 | NW 11 | E 14 | E 14 | NW 12 | NW 12 | NW 12 | NE 13 | NE 13 | NE 12 | NNE 7 | NNE 8 | NE 11 |
| kJ | 12 | 12 | 11 | 11 | 6 | 6 | 14 | 23 | 13 | 6 | 5 | 19 | 32 | 35 | 51 | 50 | 49 | 84 | 83 | 72 | 37 | 40 | 58 |
Swell 3 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 13 | NW 12 | S 12 | SW 15 | E 14 | E 14 | E 14 | E 13 | NNW 13 | NNW 13 | N 8 | NE 14 | NE 14 | ESE 8 | NE 13 | NW 11 | NW 11 | NW 11 | NE 12 | NE 12 | NW 11 |
| kJ | 3 | 3 | 7 | 6 | 11 | 8 | 4 | 4 | 15 | 14 | 17 | 17 | 5 | 7 | 33 | 19 | 62 | 45 | 43 | 43 | 68 | 65 | 40 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | — | ESE 7 | — | — | E 7 | NE 8 | ENE 8 | — |
| kJ | 397 | 373 | 336 | 336 | 302 | 336 | 322 | 280 | 244 | 214 | 204 | 199 | 172 | 186 | 154 | — | 57 | — | — | 39 | 140 | 123 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 41 | 45 | 41 | 41 | 45 | 41 | 41 | 42 | 42 | 18 | 41 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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