- Forecast
- Maps
- Live
- Weather State
- Spot Information
Castles Beach Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Castles Beach surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Thursday 14 May 2026 HSTForecast update in hr min s Forecast update imminent
Castles Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castles Beach sea temperature is
25.3° C
(Which is normal for this time of year)How big are the waves at Castles Beach today?
The current surf forecast for Castles Beach at 11AM is: 1.6m 7s primary swell from a East-northeast direction (forecast issued at 07:00am May 14). An open ocean swell of 0.9m 15s is not directed at the surf break, a second open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 5.5ft (1.7m) | 7s |
| Afternoon (14 May) | 5ft (1.6m) | 7s |
| Evening (14 May) | 5.5ft (1.7m) | 7s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 28mm), heaviest during Fri afternoon. Warm (max 24°C on Thu morning, min 23°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sun 17 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ESE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | |
302 | 289 | 258 | 265 | 247 | 261 | 284 | 300 | 308 | 163 | 300 | 292 | 292 | 345 | 388 | 376 | 361 | 361 | 361 | 350 | 310 | 330 | 280 | 470 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on | on | on | on | on | |
High Tide | 1:42PM0.84m | 00:24AM0.57m | 2:24PM0.91m | 00:58AM0.53m | 3:09PM0.95m | 1:32AM0.50m | ||||||||||||||||||
Low Tide | 6:29AM0.05m | 7:53PM0.39m | 7:00AM-0.00m | 8:51PM0.39m | 7:34AM-0.04m | 9:49PM0.39m | ||||||||||||||||||
 |  |  |  | |  | |  | | | | | | | |  | |  | | | | | | | |
 | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | 5:50 |
 | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | 7:02 |
— | — | 1 | 1 | 1 | 1 | 2 | 3 | 1 | — | 3 | 6 | 5 | 3 | — | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
21 | 21 | 23 | 23 | 23 | 22 | 21 | 22 | 23 | 25 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 24 | 25 | 25 | 25 | 26 | 26 | 27 | |
Swell 1 Height (m) Direction Period (s) | NNW 16 | NW 15 | NW 15 | NNW 15 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 | NE 7 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NNW 11 | ENE 8 | ENE 8 | NW 11 | NW 11 | NW 11 | ENE 8 | ENE 8 | ENE 8 |
 kJ | 177 | 242 | 322 | 382 | 418 | 469 | 437 | 352 | 342 | 156 | 227 | 212 | 147 | 144 | 112 | 84 | 361 | 361 | 58 | 58 | 58 | 330 | 280 | 359 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NNW 13 | N 8 | N 8 | N 8 | N 8 | NNW 15 | NNW 15 | NNW 11 | NW 11 | NNW 13 | SSE 10 | SSW 16 | NNW 11 | NNW 10 | NNW 10 |
| kJ | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 20 | 295 | 12 | 11 | 12 | 11 | 21 | 21 | 82 | 59 | 17 | 10 | 26 | 46 | 42 | 41 |
Swell 3 Height (m) Direction Period (s) | NW 8 | NNW 8 | NW 11 | NNW 11 | S 12 | NNW 10 | SSE 12 | S 12 | S 12 | N 8 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | NNW 13 | SSE 10 | NNW 13 | SSE 10 | SSW 16 | SSE 12 | SSE 12 |
| kJ | 11 | 7 | 19 | 11 | 3 | 9 | 14 | 11 | 11 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 18 | 10 | 17 | 10 | 26 | 14 | 13 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ESE 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | — | — | ENE 8 | ENE 8 | ENE 8 | — | — | E 8 |
| kJ | 302 | 289 | 258 | 265 | 247 | 261 | 284 | 300 | 308 | 163 | 300 | 292 | 292 | 345 | 388 | 376 | — | — | 361 | 350 | 310 | — | — | 470 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 13 | 18 | 18 | 18 | 18 | 18 | 41 | 18 | 18 | 21 | 41 | 19 | 18 | 18 | 16 | 9 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castles Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest