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Surf Forecasts:
Number Fours surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Friday 05 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Number Fours surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Number Fours sea temperature is
26.2° C
(Which is slightly warmer than usual)How big are the waves at Number Fours today?
The current surf forecast for Number Fours at 5AM is: 1.3m 6s primary swell from a East direction (forecast issued at 01:00am December 05). An open ocean swell of 0.9m 14s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Dec) | 5ft (1.5m) | 7s |
| Afternoon (05 Dec) | 5ft (1.6m) | 8s |
| Evening (05 Dec) | 5ft (1.6m) | 8s |
Table - waves today at Number Fours. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 05 | Saturday 06 | Sunday 07 | ||||||||||||||||||||||
| 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) (?) | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 94 | 112 | 139 | 220 | 251 | 273 | 395 | 280 | 280 | 232 | 226 | 196 | 163 | 134 | 115 | 115 | 118 | 121 | 133 | 137 | 118 | 76 | 167 | 163 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | 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) | 4:30AM 0.84 | 4:08PM 0.17 | 5:18AM 0.83 | 5:08PM 0.16 | 6:06AM 0.80 | 6:16PM 0.16 | ||||||||||||||||||
Low Tide / height (m) | 8:45PM -0.09 | 12:07PM 0.06 | 9:28PM -0.08 | 1:02PM 0.05 | 10:13PM -0.04 | 1:56PM 0.05 | ||||||||||||||||||
Friday 05 | Saturday 06 | Sunday 07 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:56 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - |
 | | |  | |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 23 | 25 | 25 | 24 | 24 |
| Feels °C (?) | 22 | 23 | 24 | 25 | 25 | 23 | 22 | 22 | 21 | 23 | 23 | 23 | 22 | 24 | 21 | 23 | 25 | 25 | 25 | 23 | 24 | 23 | 22 | 22 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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