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Kahalu'u Beach Park Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Kahalu'u Beach Park surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Sunday 17 May 2026 HSTForecast update in hr min s Forecast update imminent
Kahalu'u Beach Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahalu'u Beach Park sea temperature is
26.4° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Kahalu'u Beach Park today?
The current surf forecast for Kahalu'u Beach Park at 11PM is: 0.7m 15s primary swell from a South-southwest direction and 0.4m 10s secondary swell from a South direction (forecast issued at 07:00pm May 17). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | - | - |
| Afternoon (17 May) | 2ft (0.6m) | 15s |
| Evening (17 May) | 2.5ft (0.7m) | 15s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Mon afternoon. Warm (max 27°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | |
196 | 193 | 188 | 183 | 183 | 136 | 246 | 277 | 125 | 123 | 166 | 233 | 236 | 180 | 180 | 160 | 239 | 236 | 210 | 213 | 213 | 156 | 156 | 105 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | glassy | glassy | glassy | cross-on | on | cross-on | cross | cross-on | cross-on | cross-on | glassy | cross | on | cross-on | glassy | cross | glassy | cross-on | cross-on | glassy | cross-on | cross-on | |
High Tide | 4:47PM0.94m | 4:28AM0.32m | 5:35PM0.92m | 5:22AM0.29m | 6:27PM0.88m | 6:27AM0.28m | ||||||||||||||||||
Low Tide | 00:03AM0.14m | 10:00AM-0.01m | 1:02AM0.15m | 10:44AM0.03m | 2:04AM0.15m | 11:33AM0.09m | ||||||||||||||||||
 |  | | | | |  |  | |  | | | | | | | | |  | | | | | | |
 | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:53 |
1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 2 | 1 | 1 | 1 | 1 | — | 1 | 1 | 2 | 1 | — | — | 1 | 1 | — | 1 | |
Temp °C | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 26 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 26 | 26 |
30 | 28 | 30 | 30 | 30 | 29 | 30 | 29 | 29 | 30 | 28 | 28 | 29 | 28 | 28 | 28 | 30 | 28 | 28 | 27 | 26 | 28 | 28 | 28 | |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 15 | SSW 16 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 196 | 193 | 188 | 183 | 183 | 136 | 246 | 277 | 125 | 123 | 166 | 233 | 236 | 180 | 180 | 160 | 239 | 236 | 210 | 213 | 213 | 156 | 156 | 105 |
Swell 2 Height (m) Direction Period (s) | SW 21 | S 6 | S 10 | S 10 | SSW 18 | SSW 17 | SW 19 | SW 19 | SSW 16 | SSW 16 | SSW 16 | SSW 18 | SW 18 | SSW 17 | SSW 17 | SSW 17 | SSW 10 | NW 11 | S 10 | SSW 16 | SW 16 | SSW 18 | SSW 18 | SSW 18 |
| kJ | 117 | 7 | 33 | 18 | 63 | 101 | 96 | 96 | 87 | 51 | 51 | 31 | 80 | 101 | 99 | 101 | 18 | 5 | 7 | 25 | 41 | 103 | 62 | 103 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SW 21 | SSW 18 | SSW 18 | S 6 | SW 19 | S 6 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | S 4 | NNW 3 | SW 18 | SW 18 | SSW 18 | SW 18 | W 11 | SW 16 | S 9 | S 9 | SW 16 | SSW 16 | SSW 16 |
| kJ | 12 | 72 | 62 | 61 | 6 | 59 | 3 | 75 | 75 | 75 | 72 | 1 | 1 | 80 | 49 | 31 | 12 | 2 | 10 | 7 | 6 | 41 | 25 | 25 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 10 | — | NW 9 | NW 3 | — | — | — | SSW 10 | NNW 3 | SSW 10 | — | — | — | — | SW 6 | WSW 6 |
| kJ | — | — | — | — | — | — | — | — | 17 | — | 3 | 2 | — | — | — | 18 | 3 | 18 | — | — | — | — | 6 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 52 | 52 | 0 | 0 | 0 | 11 | 125 | 125 | 1 | 13 | 96 | 94 | 0 | 1 | 125 | 138 | 0 | 1 | 0 | 6 | 6 | 0 | 128 | 138 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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