Surf Forecasts:
How big are the waves at Avalanche today (18 Sep):
- Afternoon surf: Afternoon surf (18 Sep, local time) - 0.5ft (0.2m), 9s period with WSW swell.
- Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.1m), 7s period with NE swell.
The current surf forecast for Avalanche at 11PM is: 1.1m 7s primary swell from a Northeast direction (forecast issued at 07:00pm September 18). An open ocean swell of 1.1m 16s is not directed at the surf break, a second open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 0.5ft (0.2m) | 9s |
| Evening (18 Sep) | 3.5ft (1.1m) | 7s |
Table - waves today at Avalanche. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Sat afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||
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) | WSW 9 | NE 7 | NE 7 | SSW 16 | NE 7 | SSW 16 | NE 7 | NE 6 | NE 6 | SSW 16 | SW 16 | NE 7 | NE 6 | NE 7 | NE 7 | SW 15 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 8 | 114 | 102 | 0 | 88 | 0 | 77 | 56 | 58 | 0 | 0 | 77 | 39 | 44 | 65 | 104 | 104 | 104 | 33 |
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 | 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 | 9:34PM0.15m | 10:27AM0.44m | 11:07PM0.17m | 11:22AM0.45m | |||||||||||||||
Low Tide | 5:08PM0.14m | 00:51AM0.12m | 5:31PM0.12m | 2:29AM0.12m | 5:53PM0.10m | ||||||||||||||
 |  |  | | | | | |  | | | | | | | | | | | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 25 | 26 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 26 | 25 | 25 |
Feels °C | 26 | 26 | 27 | 26 | 25 | 26 | 26 | 27 | 27 | 26 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | NE 7 | SSW 16 | SSW 16 | SSW 16 | SW 16 | NE 7 | S 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 |
| kJ | 675 | 667 | 651 | 635 | 525 | 512 | 77 | 506 | 506 | 512 | 255 | 77 | 334 | 452 | 402 | 380 | 375 | 380 | 468 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SE 7 | NE 7 | SSE 8 | SSE 7 | SSE 6 | SSW 15 | ESE 8 | SE 8 | S 18 | SSW 16 | SSW 15 | SW 14 | ENE 8 | SSE 6 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 10 | 23 | 102 | 13 | 21 | 17 | 414 | 45 | 40 | 99 | 273 | 287 | 214 | 20 | 15 | 104 | 104 | 104 | 33 |
Swell 3 Height (m) Direction Period (s) | WSW 9 | WSW 9 | SE 6 | S 20 | S 20 | S 20 | S 18 | S 18 | S 18 | SE 9 | SE 8 | S 16 | SSE 6 | SSE 6 | N 11 | SSE 6 | SE 6 | SSE 6 | SSE 6 |
| kJ | 8 | 8 | 10 | 67 | 67 | 67 | 162 | 162 | 162 | 19 | 17 | 257 | 15 | 15 | 10 | 15 | 9 | 6 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 7 | NE 7 | E 8 | NE 7 | NE 7 | NE 7 | E 8 | NE 6 | NE 6 | NE 7 | ENE 7 | E 8 | NE 6 | NE 7 | NE 7 | NE 7 | NE 6 | ENE 6 | ENE 6 |
| kJ | 154 | 114 | 299 | 103 | 88 | 103 | 323 | 56 | 58 | 103 | 81 | 260 | 39 | 44 | 65 | 63 | 56 | 69 | 67 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 169 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 6 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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