Surf Forecasts:
How big are the waves at Mahai'ula Bay today (11 Jul):
- Morning surf: Morning surf (11 Jul, local time) - 1.5ft (0.4m), 14s period with W swell.
- Afternoon surf: Afternoon surf (11 Jul, local time) - 1.5ft (0.4m), 14s period with W swell.
- Evening surf: Evening surf (11 Jul, local time) - 1.5ft (0.4m), 14s period with W swell.
The current surf forecast for Mahai'ula Bay at 4AM is: 0.4m 13s primary swell from a West direction (forecast issued at 07:00pm July 10). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 0.5m 19s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Jul) | 1.5ft (0.4m) | 14s |
| Afternoon (11 Jul) | 1.5ft (0.4m) | 14s |
| Evening (11 Jul) | 1.5ft (0.4m) | 14s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Warm (max 27°C on Fri night, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 20 | W 14 | W 15 | SW 19 | W 13 | W 13 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | SW 16 | W 3 | SW 16 | SW 16 | W 12 | SW 16 | W 12 | W 12 | SW 2 | SW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 62 | 66 | 70 | 0 | 55 | 56 | 62 | 64 | 63 | 60 | 55 | 55 | 55 | 54 | 0 | 2 | 0 | 0 | 47 | 0 | 47 | 47 | 1 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-off | glassy | cross | cross-on | cross-on | cross | glassy | cross | cross-off | cross | glassy | cross-off |
High Tide | 00:33AM0.31m | 2:08PM0.88m | 1:44AM0.30m | 2:56PM0.93m | 2:43AM0.32m | |||||||||||||||||||
Low Tide | 8:45PM0.22m | 6:22AM0.02m | 9:33PM0.17m | 7:18AM-0.00m | 10:14PM0.13m | 8:12AM-0.02m | ||||||||||||||||||
 |  | | | | | | | | | |  | |  | |  | | | | | | | | | |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — |
 | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | 7:06 |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 28 | 27 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 25 | 26 | 26 | 27 | 26 | 26 | 27 | 25 | 25 | 25 | 25 | 26 | 25 |
Feels °C | 31 | 30 | 31 | 31 | 30 | 31 | 31 | 30 | 30 | 31 | 30 | 28 | 29 | 28 | 30 | 28 | 29 | 28 | 29 | 27 | 26 | 25 | 29 | 27 |
Swell 1 Height (m) Direction Period (s) | S 12 | NNE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | SW 16 | SW 15 | NNE 7 | NNE 7 |
| kJ | 76 | 88 | 91 | 71 | 62 | 70 | 73 | 85 | 85 | 85 | 70 | 51 | 51 | 73 | 75 | 79 | 99 | 113 | 91 | 78 | 245 | 242 | 115 | 91 |
Swell 2 Height (m) Direction Period (s) | W 14 | W 14 | W 15 | SW 19 | SW 19 | SW 19 | SW 18 | SSW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | W 12 | W 12 | SW 15 | SW 15 |
| kJ | 37 | 66 | 70 | 184 | 183 | 177 | 157 | 209 | 249 | 246 | 246 | 309 | 302 | 281 | 264 | 258 | 258 | 255 | 251 | 248 | 47 | 47 | 229 | 220 |
Swell 3 Height (m) Direction Period (s) | SW 20 | SSW 11 | SW 19 | SSW 10 | W 13 | W 13 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | S 12 | S 12 | SSE 12 | SSE 12 | W 12 | SSE 4 | S 4 | S 11 | SSE 11 | SSE 11 |
| kJ | 62 | 41 | 96 | 37 | 55 | 56 | 62 | 64 | 63 | 60 | 55 | 55 | 55 | 54 | 41 | 43 | 46 | 46 | 47 | 5 | 5 | 23 | 41 | 24 |
Wind waves Height (m) Direction Period (s) | NNE 6 | — | — | — | — | — | — | — | SW 11 | SSE 5 | SSE 5 | — | — | — | — | W 3 | — | SSE 4 | S 4 | — | NNE 7 | NNE 7 | SW 2 | SSE 5 |
| kJ | 77 | — | — | — | — | — | — | — | 63 | 4 | 4 | — | — | — | — | 2 | — | 6 | 7 | — | 86 | 101 | 1 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 34 | 34 | 34 | 11 | 1 | 19 | 1 | 11 | 1 | 1 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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