Surf Forecasts:
How big are the waves at Kahalu'u Beach Park today (25 Sep):
- Morning surf: Morning surf (25 Sep, local time) - 2ft (0.6m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (25 Sep, local time) - 1.5ft (0.5m), 15s period with SW swell.
- Evening surf: Evening surf (25 Sep, local time) - 1.5ft (0.5m), 15s period with SW swell.
The current surf forecast for Kahalu'u Beach Park at 4AM is: 0.6m 16s primary swell from a Southwest direction and 0.4m 10s secondary swell from a South direction, 0.2m 5s secondary swell from a North-northwest direction (forecast issued at 01:00am September 25). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Sep) | 2ft (0.6m) | 16s |
| Afternoon (25 Sep) | 1.5ft (0.5m) | 15s |
| Evening (25 Sep) | 1.5ft (0.5m) | 15s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Fri night. Warm (max 28°C on Fri morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | ||||||||||||||||||||||
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 16 | SW 16 | SW 16 | SW 15 | SSW 16 | SW 15 | SW 16 | SW 17 | SW 17 | SSW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SSW 13 | SSW 13 | SSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 235 | 203 | 203 | 196 | 115 | 162 | 113 | 255 | 291 | 302 | 377 | 238 | 377 | 171 | 144 | 199 | 176 | 125 | 123 | 143 | 141 | 214 | 303 | 249 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | cross-on | glassy | cross-off | glassy | cross-off | glassy | glassy | cross | cross-on | glassy | glassy | glassy | cross-off | glassy | glassy | glassy | on | on | cross-on | cross-on | cross-on |
High Tide | 3:01AM0.59m | 3:00PM0.67m | 3:35AM0.67m | 3:29PM0.63m | 4:10AM0.73m | 3:59PM0.57m | ||||||||||||||||||
Low Tide | 8:52AM0.13m | 9:18PM0.06m | 9:37AM0.14m | 9:40PM0.04m | 10:23AM0.15m | 10:04PM0.03m | ||||||||||||||||||
 |  |  | | | |  |  | | |  | | | | | | | | | | |  | |  | |
 | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — |
mm | — | 1 | 1 | 1 | 2 | 4 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 28 | 28 | 28 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 32 | 31 | 32 | 32 | 33 | 30 | 30 | 29 | 29 | 31 | 30 | 31 | 32 | 32 | 31 | 31 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | S 11 | S 10 | S 10 | S 10 | S 10 | SW 16 | SW 17 | SW 17 | SSW 17 | SW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | S 10 | S 9 | S 10 | S 10 | S 10 | S 10 |
| kJ | 235 | 203 | 112 | 108 | 80 | 78 | 74 | 255 | 291 | 302 | 377 | 238 | 377 | 171 | 144 | 199 | 176 | 125 | 65 | 62 | 94 | 214 | 158 | 208 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 9 | SW 16 | SW 16 | SW 15 | SSW 16 | SW 15 | S 10 | S 10 | S 10 | SSE 10 | SSW 17 | SSE 10 | SSW 16 | SW 16 | S 10 | S 10 | S 10 | SW 16 | SW 15 | SSW 13 | SSW 13 | SSW 13 | SSW 13 |
| kJ | 58 | 25 | 203 | 196 | 115 | 162 | 113 | 74 | 52 | 52 | 34 | 164 | 20 | 146 | 121 | 50 | 49 | 47 | 121 | 143 | 141 | 204 | 303 | 249 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | S 11 | SSW 16 | SSW 20 | SW 12 | SW 19 | SW 12 | SW 12 | SW 12 | SW 12 | WNW 18 | S 10 | SSW 16 | S 10 | S 10 | SW 16 | SW 16 | SW 16 | SSW 15 | S 14 | SW 15 | SW 15 | NW 13 | NW 13 |
| kJ | 25 | 37 | 50 | 38 | 38 | 95 | 37 | 37 | 22 | 36 | 31 | 53 | 51 | 32 | 49 | 90 | 121 | 121 | 123 | 104 | 136 | 57 | 45 | 44 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | — | — | W 2 | NW 3 | — | — | NW 5 | WSW 3 | NW 5 | NW 5 | W 3 | — | W 8 | NW 5 | — | — | — | NW 5 | — | — | — | NW 9 |
| kJ | 4 | 2 | — | — | 1 | 2 | — | — | 6 | 2 | 4 | 10 | 1 | — | 5 | 7 | — | — | — | 6 | — | — | — | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 52 | 25 | 13 | 13 | 25 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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