Surf Forecasts:
How big are the waves at Avalanche today (20 Sep):
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3.5ft (1.0m), 6s period with NE swell.
- Evening surf: Evening surf (20 Sep, local time) - 3ft (0.9m), 6s period with NE swell.
The current surf forecast for Avalanche at 12AM is: 1.0m 7s primary swell from a Northeast direction (forecast issued at 07:00pm September 19). An open ocean swell of 0.7m 16s is not directed at the surf break, a second open ocean swell of 0.7m 16s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | - | - |
| Afternoon (20 Sep) | 3.5ft (1.0m) | 6s |
| Evening (20 Sep) | 3ft (0.9m) | 6s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Tue afternoon, min 25°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||
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 |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NE 6 | NE 6 | NE 7 | SSW 15 | SSW 16 | NE 7 | NE 7 | SW 15 | SW 15 | SW 15 | SW 15 | NE 6 | SW 15 | NE 6 | NE 6 | NE 6 | W 11 | W 11 | N 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 79 | 56 | 89 | 0 | 0 | 79 | 75 | 104 | 104 | 104 | 78 | 75 | 33 | 62 | 64 | 64 | 9 | 9 | 36 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-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 | cross-off | cross-off |
High Tide | 11:07PM0.17m | 11:22AM0.45m | 11:53PM0.20m | 12:04PM0.47m | |||||||||||||||
Low Tide | 5:31PM0.12m | 2:29AM0.12m | 5:53PM0.10m | 3:40AM0.10m | 6:12PM0.09m | ||||||||||||||
 |  | |  | |  | | | | | | | | | | | |  | | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 25 | 25 |
Feels °C | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 25 | 24 | 25 | 26 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SW 16 | ENE 7 | ENE 7 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
| kJ | 506 | 512 | 255 | 127 | 96 | 452 | 402 | 380 | 375 | 380 | 365 | 350 | 336 | 331 | 327 | 317 | 304 | 299 | 295 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | SSW 16 | SSW 15 | SSW 16 | SSE 6 | SSE 6 | SW 15 | SW 15 | SW 15 | SW 15 | SSE 6 | SSE 6 | ESE 8 | SE 8 | SW 14 | SSE 5 | W 11 | ESE 9 |
| kJ | 44 | 44 | 273 | 287 | 350 | 15 | 7 | 104 | 104 | 104 | 75 | 6 | 3 | 23 | 17 | 51 | 3 | 9 | 15 |
Swell 3 Height (m) Direction Period (s) | S 18 | ENE 8 | ESE 8 | S 16 | SW 14 | SW 15 | SSE 8 | SSE 6 | SE 6 | SSE 6 | SSE 6 | SW 15 | SW 15 | SSW 15 | SSW 15 | SSE 6 | W 11 | N 10 | N 14 |
| kJ | 162 | 20 | 26 | 257 | 214 | 33 | 7 | 7 | 10 | 7 | 7 | 33 | 33 | 21 | 21 | 3 | 9 | 7 | 36 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 7 | — | — | NE 7 | NE 7 | NE 7 | NE 7 | ENE 6 | NE 6 | NE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 |
| kJ | 79 | 56 | 89 | — | — | 79 | 75 | 85 | 85 | 74 | 78 | 75 | 82 | 62 | 64 | 64 | 51 | 54 | 44 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 14 | 14 | 6 | 17 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 17 | 14 | 14 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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