Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (10 Sep):
- Morning surf: Morning surf (10 Sep, local time) - 2.5ft (0.7m), 13s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Sep, local time) - 1.5ft (0.5m), 18s period with SW swell.
- Evening surf: Evening surf (10 Sep, local time) - 1.5ft (0.5m), 17s period with SW swell.
The current surf forecast for Kahalu'u Beach Park at 7PM is: 0.5m 18s primary swell from a Southwest direction and 0.5m 12s secondary swell from a South-southwest direction (forecast issued at 01:00pm September 10). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Sep) | 2.5ft (0.7m) | 13s |
| Afternoon (10 Sep) | 1.5ft (0.5m) | 18s |
| Evening (10 Sep) | 1.5ft (0.5m) | 17s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Thu afternoon. Warm (max 27°C on Thu afternoon, min 25°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||||
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 18 | SW 18 | SW 18 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 137 | 154 | 154 | 150 | 133 | 175 | 175 | 173 | 169 | 154 | 150 | 150 | 148 | 148 | 148 | 154 | 65 | 66 | 64 | 64 | 70 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | glassy | glassy | glassy | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | glassy |
High Tide | 3:26PM0.76m | 3:55AM0.62m | 3:57PM0.70m | 4:32AM0.67m | 4:26PM0.62m | ||||||||||||||||
Low Tide | 9:01AM0.09m | 9:53PM0.06m | 9:48AM0.11m | 10:16PM0.06m | 10:34AM0.15m | 10:39PM0.06m | |||||||||||||||
 | | |  | |  | |  | | |  |  | | | | | | | | | | |
 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — |
mm | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 31 | 29 | 29 | 31 | 31 | 31 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 27 | 28 | 28 | 29 | 29 | 29 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SW 16 | SW 14 | SW 16 | SW 16 | SSW 13 |
| kJ | 129 | 125 | 117 | 83 | 83 | 175 | 175 | 173 | 169 | 154 | 150 | 150 | 148 | 148 | 148 | 154 | 65 | 65 | 64 | 64 | 70 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 18 | SW 18 | SW 18 | SW 16 | S 12 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 14 | SW 16 | SW 13 | SW 13 | SW 16 |
| kJ | 137 | 154 | 154 | 150 | 133 | 72 | 60 | 58 | 42 | 41 | 41 | 29 | 29 | 28 | 20 | 18 | 46 | 66 | 45 | 45 | 65 |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SW 10 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 |
| kJ | 18 | 9 | 7 | 9 | 9 | 48 | 72 | 46 | 46 | 46 | 46 | 46 | 43 | 25 | 23 | 23 | 18 | 18 | 17 | 11 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | SE 4 | — | — | — | — | — | — | NW 2 | NW 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 3 | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 13 | 0 | 0 | 0 | 6 | 25 | 99 | 99 | 99 | 25 | 25 | 94 | 94 | 94 | 99 | 75 | 75 | 125 | 0 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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