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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 am Saturday 23 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
25.5° C
(Which is normal for this time of year)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 4PM is: 1.6m 8s primary swell from a Northeast direction and 0.6m 15s secondary swell from a North-northwest direction (forecast issued at 07:00am May 23). An open ocean swell of 0.7m 15s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 6ft (1.8m) | 8s |
| Afternoon (23 May) | 5.5ft (1.7m) | 8s |
| Evening (23 May) | 5ft (1.6m) | 8s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Warm (max 24°C on Sat afternoon, min 22°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | |
277 | 346 | 481 | 433 | 367 | 338 | 363 | 322 | 270 | 283 | 320 | 290 | 367 | 408 | 346 | 297 | 244 | 219 | 214 | 233 | 227 | 203 | 216 | 188 | |
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 | 10:27AM0.22m | 9:26PM0.37m | 11:25AM0.29m | 10:16PM0.32m | 12:11PM0.36m | 11:02PM0.27m | ||||||||||||||||||
Low Tide | 3:02AM-0.01m | 1:55PM0.14m | 3:36AM-0.02m | 3:38PM0.15m | 4:06AM-0.02m | 5:05PM0.15m | ||||||||||||||||||
 |  |  |  | | | |  | | | | | | | | |  | | | | | | | | |
 | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | 5:50 |
 | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | 7:07 |
— | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 22 | 23 | 23 | 24 | 23 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 |
19 | 19 | 18 | 20 | 19 | 19 | 20 | 19 | 20 | 20 | 20 | 21 | 20 | 20 | 20 | 19 | 20 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | S 16 | S 15 | NW 14 | NW 14 | NW 13 | NE 8 | NNW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NE 8 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 |
 kJ | 185 | 183 | 125 | 242 | 215 | 211 | 194 | 180 | 270 | 206 | 152 | 149 | 144 | 142 | 106 | 101 | 97 | 219 | 142 | 138 | 88 | 85 | 84 | 84 |
Swell 2 Height (m) Direction Period (s) | NW 10 | NW 10 | NNW 16 | NNW 16 | NNW 15 | S 15 | S 15 | S 15 | NW 13 | S 14 | S 14 | S 13 | S 13 | S 13 | S 14 | S 14 | S 14 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 |
| kJ | 53 | 51 | 102 | 164 | 191 | 212 | 155 | 155 | 175 | 134 | 93 | 92 | 92 | 88 | 136 | 140 | 142 | 97 | 58 | 57 | 56 | 55 | 39 | 27 |
Swell 3 Height (m) Direction Period (s) | SSW 13 | SSW 13 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NW 10 | NW 10 | S 14 | SSE 11 | S 16 | SE 6 | S 16 | S 16 | S 21 | SW 20 | SW 20 | S 12 | SW 20 | S 20 | S 20 | SE 6 | S 17 | SSE 6 |
| kJ | 58 | 58 | 50 | 40 | 39 | 39 | 25 | 24 | 146 | 12 | 46 | 12 | 46 | 46 | 9 | 16 | 15 | 47 | 15 | 7 | 7 | 11 | 23 | 4 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | NE 8 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 277 | 346 | 481 | 433 | 367 | 338 | 363 | 322 | 402 | 283 | 320 | 290 | 367 | 408 | 346 | 297 | 244 | 287 | 214 | 233 | 227 | 203 | 216 | 188 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 163 | 163 | 168 | 171 | 170 | 16 | 14 | 14 | 16 | 162 | 165 | 166 | 16 | 163 | 16 | 163 | 14 | 14 | 17 | 16 | 16 | 16 | 16 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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