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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Thursday 23 Apr 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
25.0° C
(Which is slightly warmer than usual)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 1AM is: 1.0m 10s primary swell from a North-northeast direction and 0.6m 12s secondary swell from a North-northwest direction, 0.4m 15s secondary swell from a West-northwest direction (forecast issued at 07:00pm April 23). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 3ft (0.9m) | 10s |
| Afternoon (24 Apr) | 2ft (0.6m) | 13s |
| Evening (24 Apr) | 3.5ft (1.0m) | 9s |
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 Fri afternoon, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sun 26 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NNW 12 | NW 12 | NNW 12 | NNE 10 | W 14 | NNE 10 | NNE 9 | W 13 | NNE 9 | NNE 9 | NNE 9 | NNE 7 | NNE 7 | NW 14 | NW 13 | NW 11 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | |
177 | 142 | 121 | 186 | 136 | 145 | 126 | 123 | 113 | 124 | 207 | 142 | 178 | 293 | 253 | 128 | 299 | 295 | 264 | 255 | 255 | 255 | 247 | 235 | |
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 | 9:21PM0.44m | 10:49AM0.15m | 10:23PM0.41m | 11:46AM0.21m | 11:15PM0.38m | 12:30PM0.28m | ||||||||||||||||||
Low Tide | 4:05AM-0.01m | 2:08PM0.07m | 4:40AM-0.02m | 3:41PM0.08m | 5:08AM-0.03m | |||||||||||||||||||
 |  |  | | | | | | | | | | |  | | | |  | | | | | | | |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:03 | — | — | — |
 | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | 6:55 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 23 | 23 | 22 | 22 | 23 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 25 |
25 | 22 | 23 | 21 | 20 | 22 | 23 | 24 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 23 | 22 | 22 | 23 | 23 | 24 | 22 | 25 | 24 | |
Swell 1 Height (m) Direction Period (s) | NNE 11 | NNE 10 | NNE 10 | NNW 12 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | W 12 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NW 14 | NNE 7 | NW 11 | NNW 13 | NNE 8 | NNW 12 | NNE 8 | NNW 12 | NNW 12 | NNW 12 | NNW 12 |
 kJ | 128 | 116 | 111 | 88 | 85 | 145 | 121 | 94 | 113 | 108 | 99 | 94 | 93 | 293 | 70 | 128 | 299 | 109 | 264 | 103 | 255 | 255 | 247 | 235 |
Swell 2 Height (m) Direction Period (s) | NNW 12 | NW 12 | NNW 12 | WNW 15 | W 14 | W 13 | W 13 | W 13 | NW 13 | W 12 | W 12 | W 12 | SSW 16 | SW 15 | NW 13 | NE 8 | SW 16 | NNW 13 | NNE 8 | NNW 12 | NNE 8 | NNE 8 | NE 8 | NE 8 |
| kJ | 177 | 142 | 121 | 71 | 136 | 126 | 126 | 123 | 44 | 75 | 72 | 71 | 162 | 115 | 253 | 54 | 196 | 295 | 106 | 255 | 103 | 101 | 84 | 82 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 15 | W 15 | W 12 | NNW 11 | NW 11 | NNW 11 | NW 11 | NW 10 | SW 13 | SSW 13 | SSW 13 | W 12 | WNW 12 | NE 8 | SSW 15 | NE 8 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
| kJ | 77 | 109 | 109 | 72 | 84 | 60 | 47 | 64 | 25 | 44 | 69 | 68 | 70 | 45 | 63 | 158 | 53 | 248 | 242 | 176 | 171 | 214 | 214 | 214 |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 4 | NE 4 | NNE 10 | NE 4 | E 5 | E 5 | E 5 | NNE 9 | NNE 9 | NNE 9 | NNE 7 | NNE 7 | NNE 8 | ENE 8 | NNE 8 | NNE 8 | E 5 | ENE 4 | — | — | — | — | — |
| kJ | 9 | 18 | 18 | 186 | 20 | 12 | 12 | 11 | 103 | 124 | 207 | 142 | 178 | 166 | 146 | 83 | 83 | 23 | 14 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 18 | 14 | 14 | 14 | 8 | 0 | 14 | 17 | 16 | 18 | 18 | 14 | 14 | 14 | 17 | 20 | 14 | 14 | 6 | 0 | 6 | 0 | 16 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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