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Backdoor Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Backdoor surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Thursday 04 Dec 2025 HSTForecast update in hr min s Forecast update imminent
Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoor sea temperature is
25.9° C
(Which is slightly warmer than usual)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 2PM is: 2.0m 14s primary swell from a Northwest direction (forecast issued at 07:00am December 04). An open ocean swell of 0.1m 10s is not directed at the surf break, a second open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 4.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 6ft (1.8m) | 13s |
| Afternoon (04 Dec) | 6.5ft (2.0m) | 14s |
| Evening (04 Dec) | 7ft (2.1m) | 13s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| 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) (?) | 12 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 884 | 990 | 1037 | 1550 | 1572 | 1460 | 1438 | 1544 | 1657 | 1804 | 2413 | 2529 | 2246 | 2082 | 1759 | 828 | 828 | 1303 | 1110 | 936 | 894 | 722 | 699 | 598 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | off | cross- off | cross- off | cross- off | cross- off | cross- off | 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) | 2:48AM 0.88 | 12:26PM 0.36 | 3:33AM 0.89 | 12:57PM 0.34 | 4:18AM 0.88 | 1:21PM 0.33 | ||||||||||||||||||
Low Tide / height (m) | 10:17AM 0.35 | 7:26PM -0.06 | 11:22AM 0.34 | 8:06PM -0.06 | 12:37PM 0.33 | 8:47PM -0.03 | ||||||||||||||||||
Thursday 04 | Friday 05 | Saturday 06 | Sun 07 | |||||||||||||||||||||
| Sunrise | - | 6:54 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - |
 |  |  | | | | | | | | | | |  |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 23 |
| Feels °C (?) | 24 | 25 | 25 | 26 | 27 | 24 | 23 | 22 | 22 | 22 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 23 |
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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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