- Forecast
- Maps
- Live
- Weather State
- Spot Information
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 am Thursday 21 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
26.6° C
(Which is 1.3°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 3PM is: 0.5m 15s primary swell from a South direction and 0.3m 12s secondary swell from a South-southwest direction (forecast issued at 07:00am May 21). The wind direction is predicted to be onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 1.5ft (0.5m) | 16s |
| Afternoon (21 May) | 1.5ft (0.5m) | 15s |
| Evening (21 May) | 2ft (0.6m) | 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 ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 26°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 16 | S 16 | S 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 | S 18 | S 18 | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | |
132 | 132 | 186 | 122 | 174 | 172 | 169 | 157 | 167 | 163 | 115 | 108 | 148 | 135 | 190 | 190 | 188 | 183 | 233 | 218 | 212 | 212 | 150 | 200 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross | on | on | glassy | glassy | cross | glassy | glassy | cross-off | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross-off | cross | cross-on | glassy | |
High Tide | 7:53AM0.29m | 8:16PM0.75m | 9:37AM0.33m | 9:12PM0.68m | 11:07AM0.41m | 10:08PM0.61m | ||||||||||||||||||
Low Tide | 3:06AM0.15m | 12:32PM0.16m | 4:01AM0.14m | 1:51PM0.25m | 4:46AM0.13m | 3:36PM0.31m | ||||||||||||||||||
 |  |  | | |  | |  | | | | |  | | | | | | | | | | | | |
 | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | 5:45 |
 | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | 6:54 |
— | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | 1 | — | — | — | — | — | — | |
Temp °C | 25 | 26 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 25 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 |
27 | 29 | 27 | 27 | 29 | 28 | 27 | 27 | 27 | 27 | 28 | 27 | 27 | 26 | 25 | 26 | 26 | 26 | 25 | 25 | 27 | 25 | 26 | 26 | |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 16 | S 16 | SSW 15 | SSW 15 | SSW 15 | S 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 |
 kJ | 132 | 132 | 186 | 122 | 174 | 172 | 169 | 157 | 167 | 163 | 115 | 108 | 148 | 135 | 190 | 190 | 188 | 183 | 233 | 218 | 212 | 212 | 150 | 200 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSE 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SW 12 | S 18 | S 18 | S 18 | S 18 | S 14 | SSW 14 | S 13 | S 13 | SSW 13 | SSW 13 | NW 11 | SE 11 | NNW 11 | NNW 10 | S 17 | S 4 |
| kJ | 57 | 55 | 17 | 29 | 28 | 28 | 48 | 71 | 59 | 101 | 99 | 97 | 93 | 61 | 89 | 89 | 57 | 57 | 5 | 5 | 11 | 10 | 23 | 1 |
Swell 3 Height (m) Direction Period (s) | WNW 9 | NNW 9 | NNW 9 | SSE 13 | NNW 9 | NNW 9 | S 19 | SE 12 | SE 12 | SSE 12 | SSE 12 | SSE 12 | NNW 10 | SW 11 | NNW 10 | NNW 11 | NNW 11 | SSE 12 | SE 12 | N 17 | S 18 | S 18 | SSW 12 | NW 15 |
| kJ | 8 | 8 | 8 | 16 | 8 | 8 | 30 | 6 | 6 | 14 | 14 | 14 | 10 | 19 | 10 | 11 | 11 | 14 | 5 | 6 | 25 | 25 | 14 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 5 | NW 5 | — | — | — | — | SW 11 | SW 11 | SW 11 | — | — | — | SE 4 | — | SW 2 | NW 11 | — | SSE 5 | WSW 2 | NW 3 |
| kJ | — | — | — | — | 5 | 6 | — | — | — | — | 30 | 19 | 30 | — | — | — | 4 | — | 1 | 18 | — | 3 | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 1 | 138 | 128 | 0 | 0 | 25 | 0 | 0 | 0 | 138 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 138 | 464 | 0 | 1 | 13 | 0 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahalu'u Beach Park surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest