Surf Forecasts:
How big are the waves at Mahai'ula Bay today (26 Sep):
- Morning surf: Morning surf (26 Sep, local time) - 1.5ft (0.4m), 18s period with NW swell.
The current surf forecast for Mahai'ula Bay at 5AM is: 0.3m 12s primary swell from a Southwest direction (forecast issued at 01:00am September 26). An open ocean swell of 0.8m 17s is not directed at the surf break, a second open ocean swell of 0.7m 11s is not directed at the surf break, a second open ocean swell of 1.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Sep) | 1.5ft (0.4m) | 18s |
| Afternoon (26 Sep) | - | - |
| Evening (26 Sep) | - | - |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 29°C on Sat morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||||||||||||
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) | SW 17 | SW 12 | NW 18 | SW 17 | SSW 17 | NNE 7 | NNE 8 | WNW 16 | NNE 8 | NNE 8 | NNE 8 | S 10 | NW 3 | NW 4 | NW 3 | NW 3 | N 6 | N 6 | SSW 12 | SSW 12 | SSW 17 | N 5 | SW 17 | SSW 17 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 0 | 22 | 80 | 0 | 0 | 0 | 0 | 100 | 0 | 0 | 0 | 0 | 9 | 8 | 7 | 4 | 46 | 32 | 0 | 0 | 0 | 9 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | off | cross-off | cross-off | cross-off | glassy | glassy | cross | glassy | cross-off | cross-on | cross-off | cross | cross-on | cross-on | cross | cross | cross-on |
High Tide | 3:37AM0.67m | 3:32PM0.63m | 4:13AM0.73m | 4:03PM0.57m | 4:51AM0.77m | 4:34PM0.50m | ||||||||||||||||||
Low Tide | 9:39AM0.13m | 9:43PM0.04m | 10:26AM0.15m | 10:07PM0.03m | 11:15AM0.17m | 10:34PM0.03m | ||||||||||||||||||
 | |  | | |  | | | | |  | | | |  | | | | | | | |  | | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 28 | 28 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 31 | 29 | 31 | 33 | 32 | 30 | 32 | 32 | 30 | 30 | 31 | 32 | 33 | 31 | 32 | 30 | 29 | 30 | 30 | 29 | 30 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | SSW 17 | SSW 17 | NNE 7 | NNE 7 | NNE 7 | SSE 10 | SSE 11 | SSE 11 | SSE 10 | NNE 8 | NNE 7 | NNE 8 | S 9 | S 9 | NNE 7 | NNE 7 | SSW 8 | SSW 8 | SSW 8 | NE 8 | NNE 8 | NNE 8 | NE 8 |
| kJ | 154 | 377 | 377 | 272 | 237 | 272 | 90 | 164 | 308 | 356 | 306 | 250 | 209 | 274 | 240 | 134 | 114 | 109 | 81 | 60 | 57 | 72 | 72 | 57 |
Swell 2 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSE 11 | SW 17 | SSW 17 | SSE 10 | SW 16 | SSW 15 | SSW 15 | SW 16 | S 10 | S 10 | S 9 | NNE 8 | NNE 8 | S 9 | S 8 | NNE 7 | NNE 7 | NNE 8 | SSW 8 | SSW 17 | SW 17 | SSW 17 |
| kJ | 138 | 109 | 115 | 309 | 377 | 97 | 203 | 249 | 167 | 203 | 339 | 369 | 288 | 187 | 178 | 162 | 103 | 77 | 64 | 50 | 44 | 200 | 309 | 264 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 12 | NW 18 | SSE 11 | SSE 11 | SW 16 | SSW 16 | WNW 16 | SSW 16 | SSW 14 | SSW 15 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 17 | SSW 12 | SSW 8 | SSW 8 |
| kJ | 291 | 22 | 80 | 109 | 105 | 206 | 140 | 100 | 169 | 165 | 167 | 187 | 257 | 201 | 141 | 137 | 102 | 139 | 119 | 121 | 197 | 85 | 50 | 56 |
Wind waves Height (m) Direction Period (s) | — | NE 7 | NNE 7 | — | — | — | NNE 8 | NE 8 | NNE 8 | NNE 8 | — | — | NW 3 | NW 4 | NW 3 | NW 3 | N 6 | N 6 | — | — | — | N 5 | — | — |
| kJ | — | 200 | 320 | — | — | — | 337 | 368 | 314 | 306 | — | — | 9 | 8 | 7 | 4 | 46 | 32 | — | — | — | 9 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 11 | 11 | 11 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 20 | 1 | 1 | 100 | 1 | 100 | 100 | 36 | 34 | 34 | 34 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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