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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Saturday 30 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
25.1° C
(Which is normal for this time of year)How big are the waves at Avalanche today (30 May):
- Morning surf: Morning surf (30 May, local time) - 3ft (0.9m), 8s period with NE swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 2.5ft (0.7m), 10s period with NNW swell.
- Evening surf: Evening surf (30 May, local time) - 2.5ft (0.7m), 10s period with NNW swell.
The current surf forecast for Avalanche at 9AM is: 0.9m 8s primary swell from a Northeast direction (forecast issued at 01:00am May 30). An open ocean swell of 1.0m 17s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 3ft (0.9m) | 8s |
| Afternoon (30 May) | 2.5ft (0.7m) | 10s |
| Evening (30 May) | 2.5ft (0.7m) | 10s |
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 afternoon. Warm (max 25°C on Sat morning, min 22°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 | NE 8 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | N 10 | N 9 | N 9 | NNW 9 | NNE 8 | NNE 8 | N 8 | N 11 | N 11 | N 10 | N 10 | N 10 | NNW 10 | NNE 10 | N 9 | SSW 18 | S 17 | |
101 | 99 | 92 | 86 | 100 | 100 | 100 | 92 | 133 | 127 | 50 | 48 | 51 | 30 | 59 | 83 | 75 | 94 | 94 | 75 | 157 | 64 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | 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 | 1:48AM0.14m | 3:01PM0.52m | 2:27AM0.12m | 3:34PM0.52m | 3:06AM0.12m | 4:09PM0.51m | ||||||||||||||||||
Low Tide | 6:17AM-0.04m | 9:27PM0.06m | 6:47AM-0.03m | 10:06PM0.05m | 7:19AM-0.03m | 10:47PM0.05m | ||||||||||||||||||
 | |  |  | |  |  | | |  | | | | | | | | | | | | | | | |
 | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:10 | — | — |
— | — | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 23 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 23 | 23 | 22 | 23 | 25 | 25 | 25 | 23 | 23 |
23 | 22 | 23 | 25 | 25 | 25 | 24 | 24 | 25 | 25 | 24 | 27 | 27 | 27 | 25 | 24 | 24 | 23 | 24 | 26 | 25 | 24 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | S 18 | S 18 | S 17 | S 17 | SSW 17 | S 16 | SSW 16 | SSW 16 | N 9 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | N 10 | S 18 | SSW 18 | S 18 | SSW 18 | S 17 |
 kJ | 627 | 613 | 617 | 596 | 459 | 427 | 432 | 421 | 133 | 406 | 395 | 300 | 288 | 284 | 276 | 276 | 276 | 273 | 94 | 408 | 528 | 632 | 510 | 596 |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NNW 10 | NNW 10 | N 10 | SSW 16 | N 9 | NNW 9 | NNE 8 | NNE 8 | N 8 | N 11 | N 11 | S 19 | N 10 | S 19 | S 14 | S 14 | N 9 | S 13 | S 13 |
| kJ | 54 | 91 | 91 | 77 | 77 | 100 | 100 | 92 | 416 | 127 | 50 | 40 | 51 | 30 | 59 | 83 | 365 | 94 | 347 | 195 | 181 | 64 | 125 | 125 |
Swell 3 Height (m) Direction Period (s) | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NE 7 | ENE 7 | NE 8 | S 11 | S 11 | N 8 | NNW 9 | NNW 9 | NNW 9 | N 8 | S 19 | N 10 | S 19 | S 14 | NNW 10 | S 10 | S 13 | S 21 | S 21 |
| kJ | 101 | 99 | 92 | 86 | 100 | 42 | 37 | 37 | 39 | 37 | 34 | 48 | 47 | 28 | 29 | 273 | 75 | 361 | 200 | 75 | 17 | 126 | 329 | 332 |
Wind waves Height (m) Direction Period (s) | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 8 | — | — | — | NE 7 | NNE 10 | NE 4 | NE 4 | NE 4 |
| kJ | 81 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 29 | — | — | — | 25 | 157 | 13 | 14 | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 14 | 14 | 17 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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