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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Sunday 10 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
25.3° C
(Which is slightly warmer than usual)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 6AM is: 0.9m 11s primary swell from a North-northwest direction and 1.1m 7s secondary swell from a North-northeast direction (forecast issued at 01:00am May 10). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | 3.5ft (1.0m) | 11s |
| Afternoon (10 May) | 4.5ft (1.3m) | 10s |
| Evening (10 May) | 4.5ft (1.4m) | 12s |
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 Sun morning, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NNW 11 | NNW 11 | NNW 11 | NNW 11 | N 10 | NNW 10 | NNW 12 | NNW 12 | NNW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NNE 7 | NNE 7 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | |
151 | 215 | 261 | 247 | 367 | 296 | 560 | 569 | 486 | 273 | 255 | 172 | 169 | 166 | 137 | 137 | 117 | 99 | 107 | 117 | 149 | 157 | 125 | 122 | |
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 | cross-off | |
High Tide | 11:14AM0.20m | 10:17PM0.36m | 11:54AM0.28m | 11:05PM0.33m | 12:32PM0.36m | |||||||||||||||||||
Low Tide | 3:55AM0.00m | 2:47PM0.12m | 4:19AM-0.02m | 4:13PM0.12m | 4:43AM-0.04m | 5:27PM0.10m | ||||||||||||||||||
 | |  |  | | | |  | | | | | | | | | | |  | | | | | | |
 | — | 5:56 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 23 |
23 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 23 | 22 | 21 | 23 | 21 | |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNW 11 | NNW 11 | N 10 | NNW 10 | NNW 12 | NNW 12 | NNW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 |
 kJ | 124 | 99 | 261 | 247 | 367 | 296 | 560 | 569 | 486 | 273 | 255 | 172 | 169 | 166 | 137 | 137 | 117 | 89 | 98 | 117 | 149 | 157 | 125 | 122 |
Swell 2 Height (m) Direction Period (s) | NNW 11 | NNW 11 | NNE 6 | N 6 | SSW 13 | NW 13 | SE 8 | SE 8 | SSW 13 | NNE 6 | SE 8 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 17 | SE 8 | NW 10 | S 16 | S 16 | S 16 | S 16 | S 15 |
| kJ | 151 | 215 | 78 | 29 | 58 | 85 | 17 | 17 | 33 | 56 | 17 | 106 | 103 | 102 | 101 | 101 | 99 | 31 | 63 | 129 | 131 | 129 | 79 | 72 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | NW 13 | SE 8 | SSW 11 | SSW 19 | SE 8 | SSW 12 | SSW 19 | ESE 6 | SE 6 | ESE 5 | SE 8 | SE 9 | NNW 13 | NNW 12 | SE 8 | NW 11 | NW 10 | SE 9 | SW 16 | SW 16 |
| kJ | 69 | 66 | 58 | 58 | 63 | 10 | 23 | 68 | 18 | 28 | 71 | 3 | 5 | 6 | 17 | 12 | 33 | 49 | 31 | 40 | 35 | 13 | 65 | 65 |
Wind waves Height (m) Direction Period (s) | E 4 | E 6 | — | NE 6 | ENE 6 | NE 3 | E 6 | E 6 | E 6 | E 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 6 | NNE 6 | NE 6 | NNE 7 | NNE 7 | NNE 6 | NE 6 | NE 6 | NE 6 | NE 6 |
| kJ | 11 | 25 | — | 30 | 72 | 7 | 50 | 49 | 75 | 64 | 58 | 73 | 96 | 99 | 70 | 73 | 91 | 99 | 107 | 88 | 124 | 105 | 92 | 73 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 6 | 6 | 6 | 18 | 6 | 8 | 14 | 14 | 14 | 18 | 162 | 162 | 16 | 14 | 14 | 6 | 14 | 14 | 16 | 14 | 14 | 14 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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