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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Tuesday 12 May 2026 HSTForecast update in hr min s Forecast update imminent
Avalanche surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avalanche sea temperature is
25.2° C
(Which is normal for this time of year)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 5AM is: 1.0m 6s primary swell from a North-northeast direction and 0.6m 10s secondary swell from a Northwest direction (forecast issued at 01:00am May 12). An open ocean swell of 1.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 3.5ft (1.1m) | 6s |
| Afternoon (12 May) | 3ft (0.9m) | 10s |
| Evening (12 May) | 3ft (0.9m) | 10s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 23°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NNE 7 | NNE 6 | NE 6 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NW 9 | NW 18 | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | |
114 | 90 | 98 | 115 | 149 | 157 | 154 | 122 | 120 | 103 | 76 | 73 | 71 | 39 | 80 | 138 | 271 | 314 | 441 | 509 | 631 | 742 | 691 | 661 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-off | cross-off | cross-off | cross-off | cross-off | off | |
High Tide | 11:05PM0.33m | 12:32PM0.36m | 11:50PM0.29m | 1:10PM0.45m | 00:35AM0.25m | 1:50PM0.52m | ||||||||||||||||||
Low Tide | 4:43AM-0.04m | 5:27PM0.10m | 5:09AM-0.06m | 6:33PM0.07m | 5:37AM-0.08m | 7:33PM0.05m | ||||||||||||||||||
 |  |  | |  | | | | |  | | | | | | | | | | | | | | | |
 | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 |
22 | 22 | 22 | 23 | 22 | 23 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 22 | 23 | 22 | 22 | 22 | 23 | 24 | 24 | 24 | 24 | 24 | |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 6 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NW 9 | NW 9 | NW 17 | NW 16 | NW 16 | NW 15 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 |
 kJ | 114 | 90 | 98 | 115 | 149 | 157 | 154 | 122 | 120 | 103 | 76 | 73 | 71 | 39 | 38 | 138 | 271 | 314 | 441 | 509 | 631 | 742 | 691 | 661 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NW 10 | NW 10 | SSW 16 | S 16 | S 16 | S 16 | S 15 | S 15 | ESE 8 | SE 7 | S 14 | SW 15 | SSW 14 | SSW 14 | N 8 | N 8 | N 8 | SSW 14 | NW 11 | SW 14 | SW 14 | NE 8 | NE 7 |
| kJ | 92 | 89 | 63 | 144 | 131 | 125 | 79 | 72 | 69 | 37 | 26 | 66 | 55 | 82 | 82 | 30 | 21 | 33 | 113 | 43 | 50 | 47 | 104 | 55 |
Swell 3 Height (m) Direction Period (s) | SSW 17 | SE 8 | SSW 16 | NW 11 | NW 10 | SE 9 | SW 16 | SW 16 | SSW 15 | S 15 | S 15 | SW 15 | S 14 | SE 9 | NW 18 | SSW 14 | ESE 8 | ESE 8 | SE 9 | SSW 14 | SE 10 | SE 10 | SSE 10 | N 8 |
| kJ | 97 | 28 | 84 | 40 | 35 | 13 | 65 | 65 | 42 | 38 | 67 | 56 | 63 | 21 | 80 | 81 | 22 | 22 | 23 | 78 | 23 | 24 | 36 | 21 |
Wind waves Height (m) Direction Period (s) | E 6 | E 7 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 8 | NE 8 | E 8 | — |
| kJ | 115 | 152 | 91 | 88 | 98 | 105 | 85 | 80 | 80 | 51 | 42 | 71 | 82 | 111 | 103 | 85 | 62 | 62 | 105 | 105 | 142 | 142 | 145 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 16 | 17 | 14 | 14 | 14 | 6 | 6 | 6 | 8 | 6 | 6 | 0 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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