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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 1 am Thursday 19 Feb 2026 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
24.4° C
(Which is normal for this time of year)How big are the waves at Backdoor today?
The current surf forecast for Backdoor at 7AM is: 1.2m 11s primary swell from a Northeast direction and 0.8m 12s secondary swell from a Northwest direction (forecast issued at 01:00am February 19). An open ocean swell of 3.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Feb) | 3.5ft (1.1m) | 11s |
| Afternoon (19 Feb) | 3.5ft (1.1m) | 11s |
| Evening (19 Feb) | 2.5ft (0.8m) | 11s |
Table - waves today at Backdoor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 19 | Friday 20 | Saturday 21 | ||||||||||||||||||||||
| 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) (?) | 13 | 13 | 13 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 11 | 9 | 9 | 13 | 13 | 12 | 12 | 13 | 14 | 11 | 8 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 138 | 163 | 196 | 357 | 315 | 278 | 237 | 202 | 110 | 96 | 79 | 314 | 278 | 118 | 140 | 99 | 129 | 66 | 70 | 78 | 117 | 84 | 84 | 84 |
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 | off | off | off | cross | cross- off | cross- off |
High Tide / height (m) | 3:46AM 0.69 | 4:09PM 0.53 | 4:02AM 0.63 | 5:03PM 0.55 | 4:13AM 0.57 | 6:08PM 0.56 | ||||||||||||||||||
Low Tide / height (m) | 9:08PM 0.16 | 10:17AM 0.19 | 9:47PM 0.23 | 10:38AM 0.16 | 10:31PM 0.32 | 11:03AM 0.13 | ||||||||||||||||||
Thursday 19 | Friday 20 | Saturday 21 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:00 | - | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:58 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - |
 | | |  |  | | | | |  | | | |  | |  | | | |  | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 3 | 3 | 2 | 5 | 6 | 3 | 1 | - |
| Temp. °C | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 21 | 21 | 21 | 22 | 22 | 23 | 22 | 21 |
| Feels °C (?) | 17 | 17 | 16 | 17 | 17 | 17 | 18 | 18 | 17 | 18 | 19 | 18 | 19 | 20 | 21 | 20 | 19 | 19 | 19 | 21 | 23 | 24 | 22 | 21 |
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Ocean Swells (m)- Wind Speed (km/h)
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