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Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Wednesday 27 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 (27 May):
- Morning surf: Morning surf (27 May, local time) - 3.5ft (1.0m), 14s period with NW swell.
- Afternoon surf: Afternoon surf (27 May, local time) - 3.5ft (1.1m), 14s period with NW swell.
- Evening surf: Evening surf (27 May, local time) - 3.5ft (1.0m), 13s period with NW swell.
The current surf forecast for Avalanche at 8AM is: 1.1m 15s primary swell from a Northwest direction and 1.0m 7s secondary swell from a Northeast direction (forecast issued at 01:00am May 27). An open ocean swell of 0.6m 14s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 May) | 3.5ft (1.0m) | 14s |
| Afternoon (27 May) | 3.5ft (1.1m) | 14s |
| Evening (27 May) | 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 25°C on Fri morning, min 23°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NE 8 | NW 11 | NE 8 | NE 8 | NE 8 | NE 8 | |
357 | 485 | 479 | 387 | 428 | 416 | 340 | 335 | 330 | 277 | 248 | 244 | 244 | 209 | 205 | 195 | 189 | 189 | 133 | 133 | 131 | 132 | 104 | 143 | |
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 | 11:46PM0.23m | 1:24PM0.47m | 00:27AM0.19m | 1:57PM0.50m | 1:08AM0.16m | 2:29PM0.52m | ||||||||||||||||||
Low Tide | 4:57AM-0.04m | 7:17PM0.11m | 5:22AM-0.04m | 8:06PM0.09m | 5:49AM-0.04m | 8:48PM0.07m | ||||||||||||||||||
 | |  |  |  | | |  | | | | | | | | | | | | | | | | | |
 | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:09 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 23 | 23 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 25 | 25 | 24 | 23 | 23 |
21 | 20 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 22 | 22 | 22 | 22 | 21 | 22 | 22 | 22 | 24 | 23 | 22 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 16 | NW 15 | NW 15 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | S 20 | S 20 | S 20 | S 19 | S 19 | NE 8 |
 kJ | 357 | 485 | 479 | 387 | 428 | 416 | 340 | 335 | 330 | 277 | 248 | 244 | 244 | 209 | 205 | 195 | 189 | 189 | 525 | 624 | 611 | 730 | 700 | 143 |
Swell 2 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 21 | S 21 | S 21 | NW 11 | NW 11 | NW 11 | NNW 11 | NNW 11 | S 18 |
| kJ | 150 | 148 | 146 | 144 | 140 | 175 | 170 | 167 | 121 | 160 | 110 | 105 | 103 | 103 | 102 | 332 | 445 | 436 | 133 | 133 | 130 | 109 | 81 | 668 |
Swell 3 Height (m) Direction Period (s) | NNW 9 | NNW 9 | SE 5 | SE 5 | SSE 6 | N 12 | N 12 | NNE 12 | N 11 | NNE 12 | NNE 12 | NNE 12 | NNE 12 | N 11 | N 11 | S 12 | S 12 | S 12 | S 11 | N 10 | S 11 | S 11 | S 11 | NNW 11 |
| kJ | 8 | 8 | 7 | 5 | 3 | 12 | 26 | 30 | 22 | 46 | 47 | 47 | 30 | 35 | 61 | 100 | 68 | 66 | 63 | 71 | 61 | 60 | 39 | 78 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 5 | NE 6 | NE 7 | NE 7 | NE 8 | NE 8 | NE 7 | NE 8 | NE 8 | NE 8 | E 7 |
| kJ | 152 | 132 | 100 | 84 | 97 | 139 | 94 | 91 | 89 | 89 | 77 | 86 | 84 | 59 | 78 | 65 | 79 | 122 | 131 | 84 | 131 | 132 | 104 | 103 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 6 | 14 | 6 | 16 | 14 | 6 | 14 | 6 | 14 | 14 | 14 | 17 | 16 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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