Surf Forecasts:
How big are the waves at Waimanu Bay today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 13ft (4.0m), 11s period with E swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 16ft (5.0m), 10s period with E swell.
- Evening surf: Evening surf (15 Aug, local time) - 21ft (6.5m), 11s period with E swell.
The current surf forecast for Waimanu Bay at 2AM is: 4.0m 12s primary swell from a East direction (forecast issued at 07:00pm August 14). An open ocean swell of 0.2m 12s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 13ft (4.0m) | 11s |
| Afternoon (15 Aug) | 16ft (5.0m) | 10s |
| Evening (15 Aug) | 21ft (6.5m) | 11s |
Table - waves today at Waimanu Bay. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 126mm), heaviest during Sat night. Warm (max 28°C on Sun morning, min 26°C on Fri night). Winds decreasing (severe gales from the ENE on Sat afternoon, light winds from the ESE by Sun morning). | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | |||||||||||||||||
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) | E 11 | E 11 | E 12 | E 12 | E 12 | E 11 | E 11 | E 10 | E 10 | E 11 | E 10 | E 9 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 1657 | 2236 | 2947 | 4196 | 4555 | 4168 | 4171 | 4380 | 6759 | 8923 | 3386 | 2023 | 1222 | 925 | 720 | 805 | 688 | 531 | 463 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross |
High Tide | 4:32AM0.66m | 4:38PM0.81m | 5:20AM0.67m | 4:59PM0.72m | |||||||||||||||
Low Tide | 10:43PM0.19m | 10:18AM0.22m | 11:09PM0.18m | 11:01AM0.32m | |||||||||||||||
 |  |  | |  |  |  | | | | | |  |  | | | | | | |
 | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:50 | — | — |
mm | 2 | 2 | 3 | 19 | 7 | 6 | 5 | 11 | 26 | 28 | 7 | 2 | — | — | 1 | 3 | 2 | 1 | 1 |
Temp °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 26 |
Feels °C | 25 | 25 | 26 | 24 | 24 | 23 | 21 | 20 | 16 | 22 | 24 | 26 | 30 | 31 | 32 | 31 | 30 | 31 | 28 |
Swell 1 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 11 | — | W 13 | W 13 | E 8 | E 8 | W 13 | W 12 | W 12 | W 12 | W 12 |
| kJ | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 10 | — | 13 | 13 | 958 | 744 | 13 | 26 | 26 | 26 | 11 |
Swell 2 Height (m) Direction Period (s) | NW 8 | W 12 | — | — | — | — | W 14 | W 14 | — | — | — | N 9 | W 13 | W 13 | NW 9 | NW 9 | NNW 9 | NW 8 | N 8 |
| kJ | 3 | 11 | — | — | — | — | 4 | 4 | — | — | — | 1 | 14 | 13 | 3 | 3 | 8 | 3 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 9 | S 16 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 11 | E 11 | E 12 | E 12 | E 12 | E 11 | E 11 | E 10 | E 10 | E 11 | E 10 | E 9 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 1657 | 2236 | 2947 | 4196 | 4555 | 4168 | 4171 | 4380 | 6759 | 8923 | 3386 | 2023 | 1222 | 925 | 720 | 805 | 688 | 531 | 463 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 58 | 58 | 66 | 58 | 58 | 58 | 58 | 58 | 69 | 462 | 462 | 24 | 0 | 8 | 15 | 29 | 29 | 29 | 58 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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