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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 pm Thursday 30 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
24.6° C
(Which is normal for this time of year)How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 10PM is: 1.0m 13s primary swell from a North-northwest direction and 0.5m 7s secondary swell from a North direction, 1.0m 6s secondary swell from a Northeast direction (forecast issued at 01:00pm April 30). The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 3.5ft (1.1m) | 12s |
| Afternoon (30 Apr) | 3.5ft (1.1m) | 12s |
| Evening (30 Apr) | 3.5ft (1.0m) | 13s |
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 24°C on Thu afternoon, min 22°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
NW 12 | NNW 12 | NNW 11 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NW 18 | NW 16 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | |
314 | 353 | 319 | 351 | 351 | 341 | 359 | 299 | 289 | 260 | 258 | 322 | 596 | 406 | 566 | 795 | 763 | 639 | 465 | 444 | 380 | 374 | 301 | 244 | |
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 | 2:47PM0.47m | 2:15AM0.19m | 3:19PM0.48m | 2:47AM0.16m | 3:51PM0.48m | 3:21AM0.13m | ||||||||||||||||||
Low Tide | 8:32PM0.06m | 6:58AM-0.05m | 9:17PM0.05m | 7:21AM-0.05m | 10:04PM0.05m | 7:46AM-0.03m | ||||||||||||||||||
 | | |  | | | |  | | | | | | | | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — |
 | — | — | 6:57 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | 6:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 |
22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | 21 | 22 | 22 | 21 | 21 | 20 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NNW 12 | NNW 11 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NW 16 | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 |
 kJ | 314 | 353 | 319 | 351 | 351 | 341 | 359 | 299 | 289 | 260 | 204 | 197 | 596 | 406 | 566 | 795 | 763 | 639 | 465 | 444 | 380 | 374 | 301 | 244 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | SSW 16 | S 16 | NNW 7 | N 7 | SSW 15 | S 15 | S 15 | S 15 | NW 18 | NW 18 | NW 16 | NNW 11 | NNW 12 | NE 8 | NE 8 | S 14 | NE 7 | S 14 | S 14 | S 15 | S 13 | NE 8 | S 13 |
| kJ | 28 | 87 | 81 | 18 | 26 | 77 | 69 | 110 | 110 | 155 | 258 | 322 | 193 | 177 | 110 | 94 | 150 | 77 | 106 | 107 | 172 | 89 | 46 | 126 |
Swell 3 Height (m) Direction Period (s) | S 16 | SSW 12 | SSW 12 | SSW 16 | S 16 | NNW 7 | SSW 11 | S 18 | SSW 18 | SSW 16 | S 16 | S 16 | SSW 16 | NNW 18 | NNW 12 | S 14 | SSW 18 | S 14 | SSW 18 | SSW 18 | SSE 9 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 47 | 28 | 29 | 86 | 83 | 16 | 12 | 55 | 61 | 91 | 127 | 131 | 86 | 211 | 158 | 195 | 104 | 106 | 103 | 31 | 8 | 147 | 146 | 102 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 8 | NE 8 | NE 8 | NE 7 | NE 7 | NE 8 | E 7 | E 8 | NE 7 | E 8 | NE 7 | NE 7 | NE 7 | NE 8 | — | NE 7 |
| kJ | 97 | 111 | 97 | 81 | 78 | 91 | 139 | 167 | 169 | 164 | 164 | 140 | 126 | 129 | 215 | 191 | 91 | 196 | 77 | 64 | 65 | 67 | — | 44 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 17 | 16 | 6 | 16 | 16 | 16 | 16 | 14 | 14 | 14 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 18 | 6 | 6 | 6 | 6 | 6 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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