Surf Forecasts:
How big are the waves at Kahalu'u today (14 Sep):
- Morning surf: Morning surf (14 Sep, local time) - 1.5ft (0.4m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (14 Sep, local time) - 1.5ft (0.4m), 22s period with SW swell.
- Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.4m), 22s period with SW swell.
The current surf forecast for Kahalu'u at 7AM is: 0.4m 14s primary swell from a Southwest direction and 0.2m 9s secondary swell from a West-southwest direction (forecast issued at 01:00am September 14). The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 1.5ft (0.4m) | 14s |
| Afternoon (14 Sep) | 1.5ft (0.4m) | 22s |
| Evening (14 Sep) | 1.5ft (0.4m) | 22s |
Table - waves today at Kahalu'u. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 29°C on Wed afternoon, min 26°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 22 | SW 22 | SW 22 | SW 21 | SW 21 | SW 21 | SSW 20 | SW 20 | SSW 20 | SSW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 18 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 54 | 54 | 50 | 53 | 121 | 118 | 118 | 117 | 117 | 220 | 269 | 309 | 253 | 251 | 303 | 384 | 372 | 260 | 323 | 319 | 316 | 316 | 316 | 390 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | on | on | on | glassy | cross | glassy | glassy | glassy | on | cross-on | cross-on | glassy | glassy | cross-on | glassy | glassy | on | cross-on | cross | glassy | glassy |
High Tide | 5:48AM0.70m | 5:17PM0.47m | 6:30AM0.68m | 5:38PM0.40m | 7:18AM0.65m | 5:51PM0.35m | ||||||||||||||||||
Low Tide | 11:01PM0.07m | 12:10PM0.24m | 11:23PM0.09m | 1:07PM0.28m | 11:47PM0.12m | 2:30PM0.31m | ||||||||||||||||||
 | |  | | | | | | | | | | |  |  | | | | | | | | | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:24 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 27 | 28 | 29 | 28 | 27 | 27 |
Feels °C | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 31 | 31 | 31 | 32 | 31 | 32 | 29 | 30 | 30 | 31 | 32 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 22 | SW 22 | SSW 13 | SW 13 | SW 21 | SW 21 | SSW 20 | SW 20 | SSW 20 | SSW 19 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SSW 18 |
| kJ | 51 | 51 | 50 | 50 | 121 | 118 | 70 | 44 | 117 | 220 | 269 | 309 | 253 | 251 | 303 | 384 | 372 | 260 | 323 | 319 | 316 | 316 | 316 | 390 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WSW 9 | SSW 23 | SW 14 | SW 14 | SW 22 | SW 21 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 8 | SW 8 | SSW 12 | SSW 12 | SW 11 | SSW 11 | SSW 11 | SW 11 |
| kJ | 11 | 11 | 8 | 53 | 50 | 49 | 118 | 117 | 44 | 43 | 42 | 41 | 39 | 38 | 38 | 38 | 11 | 11 | 14 | 13 | 20 | 12 | 12 | 31 |
Swell 3 Height (m) Direction Period (s) | SSW 24 | SSW 24 | WNW 11 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | SW 12 | SW 12 | SSW 7 | WSW 8 | W 8 | WSW 8 | WSW 8 | WNW 10 |
| kJ | 54 | 54 | 11 | 8 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 23 | 23 | 5 | 7 | 5 | 6 | 7 | 10 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 6 | — | — | WNW 8 | W 7 | — | — | — | NW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | 22 | 8 | — | — | — | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 123 | 75 | 75 | 0 | 13 | 0 | 0 | 0 | 51 | 51 | 14 | 0 | 0 | 6 | 0 | 0 | 51 | 11 | 11 | 0 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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