Surf Forecasts:
How big are the waves at Avalanche today (27 Sep):
- Morning surf: Morning surf (27 Sep, local time) - 1.5ft (0.4m), 13s period with NW swell.
- Afternoon surf: Afternoon surf (27 Sep, local time) - 1.5ft (0.5m), 13s period with NW swell.
- Evening surf: Evening surf (27 Sep, local time) - 2.5ft (0.7m), 17s period with NNW swell.
The current surf forecast for Avalanche at 12PM is: 0.5m 13s primary swell from a Northwest direction (forecast issued at 07:00am September 27). An open ocean swell of 0.9m 15s is not directed at the surf break, a second open ocean swell of 0.8m 11s is not directed at the surf break, a second open ocean swell of 2.3m 9s 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 Sep) | 1.5ft (0.4m) | 13s |
| Afternoon (27 Sep) | 1.5ft (0.5m) | 13s |
| Evening (27 Sep) | 2.5ft (0.7m) | 17s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 25°C on Sun morning). Winds decreasing (strong winds from the E on Sun morning, light winds from the ESE by Mon night). | |||||||||||||||||||||||
Sunday 27 | Monday 28 | Tuesday 29 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 15 | NW 14 | NW 13 | NW 13 | NNW 18 | NNW 17 | NNW 16 | NNW 16 | NNW 16 | NNW 15 | NNW 14 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NNW 12 | NE 8 | NNW 12 | WSW 10 | WSW 10 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 104 | 46 | 85 | 85 | 178 | 200 | 232 | 291 | 220 | 191 | 229 | 163 | 145 | 129 | 109 | 95 | 93 | 75 | 94 | 51 | 91 | 114 | 129 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | off | off | cross-off | off | off | off | off | off | off | cross-off | off | off | off |
High Tide | 3:24AM0.48m | 3:11PM0.36m | 4:06AM0.51m | 3:43PM0.31m | 4:53AM0.53m | 4:18PM0.25m | |||||||||||||||||
Low Tide | 8:35AM0.10m | 8:13PM0.01m | 9:32AM0.12m | 8:40PM0.01m | 10:40AM0.13m | 9:11PM0.01m | |||||||||||||||||
 |  | |  | | | | | | | | | | | | | | | | | |  | | |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 25 | 26 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 21 | 21 | 22 | 22 | 23 | 22 | 22 | 23 | 24 | 24 | 26 | 28 | 27 | 26 | 27 | 28 | 27 | 28 | 28 | 28 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | S 10 | S 10 | S 9 | NE 8 | NE 8 | SSW 13 | NE 8 | SSW 10 | SSW 9 | SSW 9 | SSW 16 | SSW 16 | SSW 16 | WSW 10 | SSW 16 |
| kJ | 387 | 382 | 358 | 334 | 180 | 163 | 149 | 191 | 204 | 192 | 173 | 163 | 145 | 345 | 109 | 169 | 124 | 106 | 330 | 326 | 326 | 114 | 322 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SE 11 | SSE 11 | SSE 11 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | NNW 16 | NNW 15 | NNW 14 | S 9 | SSW 13 | NE 8 | SSW 10 | NE 8 | NE 8 | SSW 16 | NE 8 | NE 8 | ENE 8 | SSW 16 | WSW 10 |
| kJ | 72 | 123 | 149 | 146 | 325 | 316 | 229 | 226 | 220 | 191 | 229 | 125 | 189 | 129 | 123 | 95 | 93 | 339 | 64 | 51 | 43 | 322 | 129 |
Swell 3 Height (m) Direction Period (s) | NW 15 | NW 14 | NW 13 | NW 13 | NNW 18 | NNW 17 | NNW 16 | NNW 16 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSE 8 | SW 17 | SW 17 | SW 17 | SW 17 | NE 8 | NNW 12 | SW 8 | NNW 12 | ENE 8 | NE 8 |
| kJ | 104 | 46 | 85 | 85 | 178 | 200 | 232 | 291 | 131 | 195 | 192 | 195 | 67 | 309 | 309 | 305 | 298 | 75 | 94 | 51 | 91 | 43 | 31 |
Wind waves Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 6 | ENE 9 | ENE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | SSE 8 | — | — | — | SSE 7 | SSE 7 | S 8 | S 7 | S 7 | S 7 | S 7 |
| kJ | 750 | 770 | 865 | 775 | 253 | 534 | 200 | 284 | 232 | 202 | 202 | — | 142 | — | — | — | 73 | 70 | 161 | 110 | 206 | 184 | 196 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 198 | 188 | 188 | 188 | 188 | 169 | 169 | 168 | 16 | 16 | 166 | 0 | 6 | 25 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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