Surf Forecasts:
How big are the waves at Waimanu Bay today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 3.5ft (1.1m), 7s period with NE swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 3.5ft (1.0m), 7s period with NE swell.
- Evening surf: Evening surf (20 Aug, local time) - 3ft (0.9m), 7s period with NE swell.
The current surf forecast for Waimanu Bay at 9AM is: 1.1m 7s primary swell from a Northeast direction (forecast issued at 01:00am August 20). An open ocean swell of 0.2m 11s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 3.5ft (1.1m) | 7s |
| Afternoon (20 Aug) | 3.5ft (1.0m) | 7s |
| Evening (20 Aug) | 3ft (0.9m) | 7s |
Table - waves today at Waimanu Bay. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Fri morning, min 25°C on Sat night). Winds increasing (calm on Thu morning, fresh winds from the ENE by Sat afternoon). | ||||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | ENE 7 | NE 7 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | E 5 | E 5 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 90 | 134 | 122 | 90 | 93 | 91 | 67 | 69 | 55 | 46 | 46 | 90 | 146 | 163 | 173 | 179 | 202 | 187 | 230 | 291 | 359 | 334 | 334 | 422 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 10:43AM0.69m | 11:52AM0.74m | 12:36PM0.79m | |||||||||||||||||||||
Low Tide | 1:35AM0.23m | 2:58AM0.24m | 4:24AM0.22m | 8:02PM0.38m | ||||||||||||||||||||
 |  |  | |  | | | | | | | | | | | | | | | | | | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 26 | 26 |
Feels °C | 29 | 29 | 30 | 31 | 31 | 30 | 31 | 30 | 30 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 26 | 26 | 27 | 28 | 28 | 27 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 7 | NE 7 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | W 10 | W 10 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | WNW 10 | W 10 | WNW 10 | WNW 11 | WNW 10 |
| kJ | 90 | 134 | 122 | 90 | 93 | 91 | 67 | 67 | 55 | 46 | 46 | 31 | 34 | 37 | 36 | 32 | 31 | 17 | 17 | 19 | 17 | 20 | 22 | 21 |
Swell 2 Height (m) Direction Period (s) | NNE 6 | W 11 | W 11 | E 7 | E 8 | E 8 | E 8 | W 11 | E 8 | E 8 | ESE 8 | W 9 | W 8 | W 9 | NNE 7 | NNE 7 | W 9 | W 9 | W 10 | W 10 | W 12 | W 10 | W 10 | W 10 |
| kJ | 35 | 10 | 9 | 51 | 40 | 41 | 44 | 21 | 35 | 35 | 23 | 1 | 1 | 2 | 15 | 9 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 7 | SE 9 | W 11 | W 11 | W 11 | W 11 | W 8 | W 11 | W 10 | W 10 | N 8 | N 8 | N 8 | W 9 | W 9 | W 11 | N 8 | N 8 | N 8 | W 10 | N 8 | N 8 | N 8 |
| kJ | 10 | 1 | 3 | 9 | 9 | 9 | 9 | 5 | 21 | 18 | 18 | 1 | 1 | 1 | 2 | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 3 | E 8 | E 4 | E 4 | E 4 | E 5 | E 5 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | — | — | — | — | — | — | 1 | 69 | 9 | 16 | 20 | 90 | 146 | 163 | 173 | 179 | 202 | 187 | 230 | 291 | 359 | 334 | 334 | 422 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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