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H-Reef surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 1 am Saturday 18 Apr 2026 HSTForecast update in hr min s Forecast update imminent
H-Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's H-Reef sea temperature is
24.6° C
(Which is normal for this time of year)How big are the waves at H-Reef today?
The current surf forecast for H-Reef at 8AM is: 1.2m 8s primary swell from a East direction and 0.3m 11s secondary swell from a Northwest direction (forecast issued at 01:00am April 18). An open ocean swell of 0.2m 13s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 4ft (1.2m) | 8s |
| Afternoon (18 Apr) | 1.5ft (0.4m) | 12s |
| Evening (18 Apr) | 4.5ft (1.3m) | 7s |
Table - waves today at H-Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 12 | 12 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 135 | 173 | 177 | 169 | 196 | 38 | 23 | 176 | 142 | 117 | 111 | 92 | 88 | 107 | 116 | 109 | 120 | 98 | 155 | 131 | 131 | 109 | 106 | 106 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross | cross | cross | cross- off |
High Tide / height (m) | 2:15AM 0.65 | 3:53PM 0.96 | 2:40AM 0.59 | 4:41PM 0.95 | 3:01AM 0.54 | 5:37PM 0.91 | ||||||||||||||||||
Low Tide / height (m) | 9:21PM 0.35 | 8:39AM -0.01 | 10:13PM 0.39 | 9:12AM -0.01 | 11:15PM 0.44 | 9:47AM 0.02 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:03 | - | - | - | - | - | - | - | 6:01 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:45 | - |
 | | |  | | | |  | | | |  | | | |  | | | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - |
| Temp. °C | 24 | 23 | 23 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 |
| Feels °C (?) | 25 | 24 | 23 | 23 | 26 | 26 | 25 | 23 | 24 | 24 | 24 | 24 | 26 | 25 | 24 | 24 | 25 | 23 | 24 | 25 | 25 | 25 | 25 | 25 |
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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 H-Reef 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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