Surf Forecasts:
How big are the waves at Mahai'ula Bay today (09 Oct):
- Morning surf: Morning surf (09 Oct, local time) - 3ft (0.9m), 14s period with W swell.
- Afternoon surf: Afternoon surf (09 Oct, local time) - 2.5ft (0.8m), 13s period with W swell.
- Evening surf: Evening surf (09 Oct, local time) - 2.5ft (0.7m), 13s period with W swell.
The current surf forecast for Mahai'ula Bay at 1PM is: 0.8m 14s primary swell from a West direction and 0.4m 5s secondary swell from a West direction (forecast issued at 07:00am October 09). An open ocean swell of 1.0m 16s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Oct) | 3ft (0.9m) | 14s |
| Afternoon (09 Oct) | 2.5ft (0.8m) | 13s |
| Evening (09 Oct) | 2.5ft (0.7m) | 13s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 28°C on Fri morning, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||
Friday 9 | Saturday 10 | Sunday 11 | |||||||||||||||||||||
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) | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | N 11 | N 11 | W 13 | W 13 | W 13 | S 18 | S 18 | S 18 | S 17 | S 16 | NNW 12 | S 16 | S 16 | WNW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 257 | 320 | 311 | 232 | 225 | 171 | 171 | 171 | 171 | 114 | 114 | 115 | 115 | 115 | 0 | 0 | 0 | 0 | 0 | 125 | 0 | 0 | 46 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross | cross-on | cross-on | cross-off | cross-off | on | on | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross | cross | cross | cross-on |
High Tide | 3:02AM0.69m | 2:54PM0.60m | 3:36AM0.75m | 3:25PM0.55m | 4:09AM0.78m | 3:55PM0.49m | |||||||||||||||||
Low Tide | 9:08AM0.15m | 9:01PM0.05m | 9:54AM0.15m | 9:24PM0.04m | 10:38AM0.16m | 9:47PM0.05m | |||||||||||||||||
 |  | | | |  |  | | |  | | | | | | | | | | | | | | |
 | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | — | 6:04 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 |
Feels °C | 31 | 29 | 28 | 28 | 31 | 29 | 31 | 30 | 28 | 31 | 30 | 29 | 29 | 30 | 28 | 29 | 29 | 29 | 28 | 28 | 26 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | W 14 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | SSW 14 | S 14 | S 18 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 |
| kJ | 257 | 596 | 555 | 529 | 522 | 620 | 503 | 559 | 537 | 422 | 435 | 350 | 264 | 398 | 620 | 620 | 498 | 291 | 255 | 330 | 417 | 326 | 507 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | S 5 | W 14 | W 14 | W 13 | W 13 | NNE 6 | W 13 | W 13 | S 20 | S 20 | S 19 | S 19 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | NNW 12 | S 13 | S 13 | NNE 5 |
| kJ | 394 | 45 | 311 | 232 | 225 | 171 | 47 | 171 | 171 | 477 | 753 | 472 | 351 | 253 | 239 | 179 | 173 | 126 | 171 | 125 | 123 | 119 | 9 |
Swell 3 Height (m) Direction Period (s) | S 12 | W 14 | S 5 | S 5 | S 5 | NNE 4 | W 13 | NNE 6 | S 20 | N 11 | N 11 | W 13 | W 13 | W 13 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 4 | S 13 | NNE 5 | NNE 5 | WNW 12 |
| kJ | 110 | 320 | 36 | 29 | 20 | 13 | 171 | 22 | 204 | 114 | 114 | 115 | 115 | 115 | 28 | 23 | 21 | 13 | 11 | 168 | 14 | 9 | 46 |
Wind waves Height (m) Direction Period (s) | S 5 | S 5 | — | W 5 | N 3 | SW 5 | S 5 | — | — | — | — | — | NNE 5 | NNE 5 | — | — | — | — | — | — | — | — | — |
| kJ | 57 | 55 | — | 9 | 5 | 7 | 7 | — | — | — | — | — | 33 | 32 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 32 | 36 | 36 | 19 | 14 | 0 | 14 | 14 | 0 | 18 | 34 | 18 | 4 | 14 | 4 | 4 | 34 | 99 | 100 | 100 | 38 | 97 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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