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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 Monday 15 Sep 2025 HST
How big are the waves at Castles Beach today?
The current surf forecast for Castles Beach at 10AM is: 1.1m 8s primary swell from a East direction and 0.3m 10s secondary swell from a South-southeast direction (forecast issued at 07:00am September 15). An 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 (15 Sep) | 3.5ft (1.1m) | 8s |
| Afternoon (15 Sep) | 3.5ft (1.1m) | 8s |
| Evening (15 Sep) | 3.5ft (1.1m) | 8s |
Table - waves today at Castles Beach. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 6 | 8 | 8 | 8 | 8 | 8 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 119 | 173 | 184 | 191 | 97 | 190 | 100 | 110 | 111 | 109 | 114 | 113 | 124 | 145 | 144 | 189 | 181 | 150 | 146 | 163 | 149 | 217 | 204 | 256 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | on | on | on |
High Tide / height (m) | 11:22AM 0.77 | 12:09PM 0.80 | 11:31PM 0.40 | 12:44PM 0.82 | 12:23AM 0.47 | |||||||||||||||||||
Low Tide / height (m) | 3:53AM 0.20 | 7:40PM 0.33 | 5:12AM 0.18 | 7:41PM 0.30 | ||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 6:16 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:34 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:31 | - | - | - |
 |  | | | |  | | | | | | |  | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Feels °C (?) | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 23 | 23 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Wind reports 3 km away suggest it is still onshore at Castles Beach (light winds from the E at Kaneohe Bay Marine Corps Airfield Airport). 1.0m 5s windswell from the ENE with a 0.5m 7s swell from the E. 2 swells combining to make bigger set waves.
2 h 7 min ago
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.
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