Surf Forecasts:
How big are the waves at Mahai'ula Bay today (07 Oct):
- Morning surf: Morning surf (07 Oct, local time) - 1.5ft (0.4m), 16s period with NW swell.
- Afternoon surf: Afternoon surf (07 Oct, local time) - 1.5ft (0.4m), 15s period with NW swell.
- Evening surf: Evening surf (07 Oct, local time) - 2ft (0.6m), 17s period with W swell.
The current surf forecast for Mahai'ula Bay at 5PM is: 0.5m 18s primary swell from a West direction (forecast issued at 01:00pm October 07). An open ocean swell of 0.9m 13s 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 (07 Oct) | 1.5ft (0.4m) | 16s |
| Afternoon (07 Oct) | 1.5ft (0.4m) | 15s |
| Evening (07 Oct) | 2ft (0.6m) | 17s |
Table - waves today at Mahai'ula Bay. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Wed night. Warm (max 28°C on Thu morning, min 26°C on Wed night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Sat morning). | |||||||||||||||||||||
Wed 7 | Thursday 8 | Friday 9 | |||||||||||||||||||
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) | NW 16 | NW 15 | W 18 | W 18 | W 17 | W 17 | W 17 | W 17 | W 16 | W 16 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 62 | 55 | 160 | 227 | 210 | 277 | 373 | 373 | 314 | 306 | 302 | 381 | 275 | 261 | 257 | 320 | 246 | 232 | 225 | 171 | 171 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | glassy | cross-off | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross | on | cross | cross-off | cross | cross-on |
High Tide | 1:45PM0.69m | 2:28AM0.61m | 2:21PM0.66m | 3:02AM0.69m | 2:54PM0.60m | ||||||||||||||||
Low Tide | 8:16PM0.07m | 8:20AM0.15m | 8:39PM0.05m | 9:08AM0.15m | 9:01PM0.05m | ||||||||||||||||
 | | |  | | |  |  | |  | |  | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — |
 | — | — | 6:07 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 29 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 28 | 27 | 28 | 29 | 31 | 30 | 28 | 29 | 31 | 31 | 30 | 30 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | W 17 | W 17 | W 16 | W 16 | SSW 18 | W 15 | W 15 | SSW 17 | SSW 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 |
| kJ | 331 | 317 | 299 | 299 | 187 | 232 | 373 | 373 | 314 | 306 | 522 | 381 | 275 | 399 | 394 | 596 | 555 | 762 | 522 | 620 | 503 |
Swell 2 Height (m) Direction Period (s) | S 21 | S 21 | S 19 | S 19 | S 19 | W 17 | SSW 13 | SSW 13 | S 18 | S 18 | W 15 | S 18 | SSW 17 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 |
| kJ | 144 | 221 | 192 | 267 | 270 | 277 | 232 | 178 | 307 | 307 | 302 | 304 | 399 | 261 | 257 | 320 | 246 | 232 | 225 | 171 | 171 |
Swell 3 Height (m) Direction Period (s) | NW 16 | NW 15 | W 18 | W 18 | W 17 | S 20 | S 18 | S 18 | NW 13 | NW 12 | NW 12 | S 12 | S 12 | S 12 | S 12 | S 5 | S 5 | NW 11 | NW 11 | NE 6 | NNE 6 |
| kJ | 62 | 55 | 160 | 227 | 210 | 186 | 336 | 311 | 42 | 53 | 37 | 108 | 110 | 146 | 148 | 23 | 17 | 57 | 72 | 30 | 25 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 4 | SSE 4 | SSE 5 | S 5 | S 6 | S 6 | S 5 | S 5 | S 5 | S 5 | S 5 | — | — | — | NE 3 | S 5 | S 4 |
| kJ | — | — | — | — | 5 | 18 | 37 | 40 | 174 | 180 | 113 | 73 | 49 | 39 | 28 | — | — | — | 2 | 12 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 57 | 58 | 0 | 0 | 0 | 0 | 0 | 0 | 130 | 54 | 29 | 14 | 0 | 0 | 25 | 19 | 36 | 25 | 34 | 19 | 19 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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