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Surf Forecasts:
Avalanche surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Tuesday 16 Sep 2025 HST
How big are the waves at Avalanche today?
The current surf forecast for Avalanche at 8PM is: 0.4m 8s primary swell from a North direction (forecast issued at 07:00pm September 16). An open ocean swell of 0.3m 12s is not directed at the surf break, a second open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | - | - |
| Afternoon (16 Sep) | 1.5ft (0.5m) | 8s |
| Evening (16 Sep) | 1.5ft (0.4m) | 8s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 16 | 16 | 5 | 15 | 15 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 21 | 21 | 21 | 21 | 0 | 0 | 8 | 0 | 0 | 37 | 49 | 63 | 58 | 55 | 54 | 40 | 40 | 36 | 79 | 79 | 67 | 99 | 193 | 98 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | 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 |
High Tide / height (m) | 12:12AM 0.21 | 12:33PM 0.54 | 12:56AM 0.26 | 1:13PM 0.53 | 1:34AM 0.30 | 1:47PM 0.51 | ||||||||||||||||||
Low Tide / height (m) | 6:10PM 0.08 | 4:13AM 0.07 | 6:37PM 0.06 | 5:12AM 0.06 | 7:00PM 0.06 | 6:03AM 0.06 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - |
| Sunset | 6:34 | - | - | - | - | - | - | - | 6:32 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - |
 |  | | |  | |  | | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 27 | 27 |
| Feels °C (?) | 24 | 24 | 24 | 25 | 24 | 25 | 26 | 26 | 25 | 24 | 25 | 24 | 25 | 24 | 26 | 26 | 26 | 26 | 25 | 26 | 25 | 25 | 27 | 27 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Offshore wind has become very light (light winds from the NE at BUOY-OOUH1 5 km from Waikiki). Surf should be turning clean at Waikiki. 0.5m 9s swell from the SSE with a 0.3m 11s groundswell from the SW and a 0.2m 12s groundswell from the SSW. 3 swells combining to make bigger set waves.
17 km away, 1 h 28 min ago
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