Surf Forecasts:
How big are the waves at Castles Beach today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 7ft (2.2m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 7ft (2.2m), 8s period with ENE swell.
- Evening surf: Evening surf (20 Oct, local time) - 7.5ft (2.3m), 8s period with ENE swell.
The current surf forecast for Castles Beach at 3PM is: 2.2m 8s primary swell from a East-northeast direction (forecast issued at 07:00am October 20). An open ocean swell of 0.4m 10s is not directed at the surf break, a second open ocean swell of 0.2m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 7ft (2.2m) | 8s |
| Afternoon (20 Oct) | 7ft (2.2m) | 8s |
| Evening (20 Oct) | 7.5ft (2.3m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 24°C on Tue night). Winds decreasing (strong winds from the ENE on Tue afternoon, light winds from the E by Thu morning). | |||||||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | |||||||||||||||||||||
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 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 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 555 | 481 | 512 | 469 | 542 | 604 | 588 | 540 | 450 | 452 | 411 | 373 | 336 | 336 | 336 | 288 | 256 | 214 | 214 | 186 | 161 | 173 | 232 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | on |
High Tide | 11:07AM0.70m | 11:48PM0.47m | 11:35AM0.71m | 00:23AM0.57m | 12:01PM0.70m | ||||||||||||||||||
Low Tide | 3:37AM0.32m | 6:17PM0.28m | 4:53AM0.31m | 6:23PM0.23m | 5:51AM0.31m | 6:35PM0.18m | |||||||||||||||||
 |  | | |  | |  | | | | | | | | | |  | | | | | | | |
 | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 21 | 21 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 24 | 24 | 24 | 26 | 25 | 25 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | N 11 | N 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | N 10 | N 10 | N 10 | N 9 | N 9 | N 9 | N 9 | N 9 | N 9 | N 9 | NW 12 | NW 11 | ENE 8 | ENE 8 | ENE 8 | NW 12 | NW 12 |
| kJ | 59 | 56 | 35 | 35 | 34 | 33 | 31 | 30 | 30 | 16 | 15 | 15 | 14 | 14 | 14 | 13 | 22 | 20 | 214 | 186 | 161 | 50 | 37 |
Swell 2 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | S 13 | S 12 | S 12 | S 12 | S 12 | NW 12 | NW 12 | NNW 12 | NW 12 | N 8 | N 8 | NW 11 | E 13 | NW 11 | E 14 | NE 14 |
| kJ | 17 | 16 | 15 | 15 | 4 | 3 | 3 | 13 | 12 | 12 | 11 | 11 | 6 | 6 | 14 | 23 | 13 | 12 | 19 | 31 | 19 | 35 | 33 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | NW 9 | NW 9 | NW 9 | NW 13 | NW 12 | SW 15 | SW 15 | E 14 | E 14 | E 14 | E 13 | N 8 | NW 11 | E 14 | NE 16 | E 12 |
| kJ | 10 | 9 | 9 | 9 | 2 | 2 | 2 | 3 | 3 | 3 | 7 | 6 | 9 | 8 | 4 | 4 | 15 | 14 | 5 | 19 | 32 | 38 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | 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 |
| kJ | 555 | 481 | 512 | 469 | 542 | 604 | 588 | 540 | 450 | 452 | 411 | 373 | 336 | 336 | 336 | 288 | 256 | 214 | — | — | — | 173 | 232 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 47 | 47 | 155 | 123 | 123 | 47 | 45 | 45 | 41 | 41 | 45 | 45 | 45 | 41 | 41 | 42 | 18 | 18 | 41 | 41 | 19 | 41 | 18 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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