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Surf Forecasts:
Coast Guard surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 1 am Thursday 02 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Coast Guard surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coast Guard sea temperature is
24.4° C
(Which is normal for this time of year)How big are the waves at Coast Guard today?
The current surf forecast for Coast Guard at 5AM is: 1.8m 10s primary swell from a Northeast direction (forecast issued at 01:00am April 02). An open ocean swell of 0.1m 13s is not directed at the surf break, a second open ocean swell of 0.2m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Apr) | 5.5ft (1.7m) | 10s |
| Afternoon (02 Apr) | 5.5ft (1.7m) | 9s |
| Evening (02 Apr) | 5ft (1.6m) | 9s |
Table - waves today at Coast Guard. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 02 | Friday 03 | Saturday 04 | ||||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 5 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 452 | 573 | 573 | 573 | 524 | 481 | 412 | 412 | 367 | 351 | 306 | 239 | 233 | 304 | 0 | 244 | 179 | 160 | 160 | 164 | 201 | 226 | 215 | 236 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:55AM 0.64 | 3:46PM 0.79 | 3:15AM 0.58 | 4:18PM 0.81 | 3:34AM 0.53 | 4:52PM 0.80 | ||||||||||||||||||
Low Tide / height (m) | 9:19PM 0.23 | 9:04AM 0.09 | 9:59PM 0.26 | 9:23AM 0.09 | 10:40PM 0.30 | 9:42AM 0.09 | ||||||||||||||||||
Thursday 02 | Friday 03 | Saturday 04 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:16 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:13 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - |
 | | |  |  |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 |
| Feels °C (?) | 18 | 17 | 17 | 18 | 18 | 19 | 19 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 17 | 18 | 17 | 17 | 17 | 18 | 19 | 17 |
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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 Coast Guard 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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