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70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
H-Reef surfForecast / HAW – Maui / USA
48hr Weather and Surf, issued 1 pm Friday 12 Dec 2025 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
25.6° C
(Which is slightly warmer than usual)How big are the waves at H-Reef today?
The current surf forecast for H-Reef at 7PM is: 1.1m 11s primary swell from a Northwest direction and 1.0m 12s secondary swell from a North direction (forecast issued at 01:00pm December 12). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 4.5ft (1.4m) | 12s |
| Afternoon (12 Dec) | 3.5ft (1.1m) | 11s |
| Evening (12 Dec) | 3.5ft (1.0m) | 11s |
Table - waves today at H-Reef. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 10 | 10 | 16 | 15 | 15 | 14 | 13 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 396 | 303 | 317 | 257 | 235 | 297 | 305 | 411 | 377 | 392 | 337 | 270 | 218 | 167 | 160 | 128 | 121 | 176 | 258 | 978 | 1021 | 991 | 821 | 712 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | glass | cross- off | off | cross- off | off | off | off | off | off | off | off | cross- off | off | off | cross | glass | glass | off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 8:17AM 0.68 | 11:34PM 0.59 | 8:57AM 0.62 | 12:17AM 0.68 | 9:41AM 0.57 | 12:49AM 0.76 | ||||||||||||||||||
Low Tide / height (m) | 4:03PM 0.25 | 3:58AM 0.53 | 4:33PM 0.21 | 6:01AM 0.52 | 5:03PM 0.18 | 7:16AM 0.49 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:54 |
| Sunset | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - | - | - | 5:45 | - | - | - | - | - |
 | | |  |  | | |  | | | | | | | | | | | |  | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 |
| Feels °C (?) | 25 | 25 | 26 | 25 | 25 | 24 | 22 | 23 | 26 | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 29 | 28 | 27 | 27 | 27 | 26 | 27 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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