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Kua Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Kua Bay surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 pm Wednesday 20 May 2026 HSTForecast update in hr min s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua Bay sea temperature is
26.5° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Kua Bay today?
The current surf forecast for Kua Bay at 12AM is: 0.9m 6s primary swell from a Northeast direction (forecast issued at 07:00pm May 20). An open ocean swell of 0.4m 9s is not directed at the surf break, a second open ocean swell of 0.2m 13s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | - | - |
| Afternoon (21 May) | 0.5ft (0.2m) | 12s |
| Evening (21 May) | 0.5ft (0.2m) | 11s |
Table - waves today at Kua Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NNW 12 | NNW 11 | NE 6 | NE 6 | SW 13 | SW 14 | N 11 | SW 13 | SW 12 | N 10 | N 10 | N 10 | N 9 | N 10 | NNE 7 | NE 8 | N 10 | N 11 | SW 13 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | |
14 | 13 | 46 | 0 | 7 | 8 | 2 | 6 | 6 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 2 | 2 | 7 | 5 | 5 | 5 | 5 | 4 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | glassy | cross | cross | cross | glassy | on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | glassy | cross | cross | glassy | glassy | cross-on | |
High Tide | 7:22PM0.82m | 7:56AM0.29m | 8:17PM0.76m | 9:38AM0.34m | 9:13PM0.68m | 11:07AM0.41m | ||||||||||||||||||
Low Tide | 3:05AM0.14m | 12:36PM0.17m | 4:00AM0.14m | 1:55PM0.25m | 4:46AM0.13m | |||||||||||||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | — |
 | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | 6:54 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 27 | 26 | 25 | 25 | 25 | 26 | 26 | 26 | 27 | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 26 | 24 | 24 | 24 | 23 | 24 | 25 | 26 |
29 | 27 | 29 | 27 | 26 | 27 | 28 | 28 | 27 | 25 | 27 | 24 | 23 | 25 | 26 | 26 | 24 | 23 | 25 | 26 | 23 | 25 | 27 | 27 | |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | ENE 9 | NE 8 | S 16 | S 16 | SSW 13 | S 16 | S 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | NE 9 | SSW 14 | SSW 14 | SSW 14 | S 16 | S 16 | S 16 | S 13 | S 16 | S 13 |
 kJ | 18 | 17 | 30 | 35 | 20 | 20 | 16 | 19 | 18 | 21 | 21 | 21 | 21 | 21 | 67 | 19 | 18 | 18 | 21 | 21 | 20 | 14 | 20 | 14 |
Swell 2 Height (m) Direction Period (s) | NNW 12 | NNW 11 | SSW 13 | SSW 16 | SW 13 | SW 14 | S 16 | SW 13 | SW 12 | N 10 | S 12 | S 12 | S 12 | S 19 | SSW 14 | S 18 | S 18 | S 17 | SW 13 | SSW 13 | S 13 | S 16 | S 13 | S 16 |
| kJ | 14 | 13 | 17 | 26 | 7 | 8 | 5 | 6 | 6 | 2 | 3 | 3 | 3 | 7 | 20 | 6 | 6 | 6 | 7 | 17 | 14 | 20 | 13 | 5 |
Swell 3 Height (m) Direction Period (s) | SW 16 | S 17 | N 11 | SSW 13 | N 11 | S 13 | N 11 | N 10 | N 10 | S 12 | N 10 | N 10 | N 9 | N 10 | S 18 | S 11 | N 10 | N 11 | N 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 |
| kJ | 10 | 6 | 9 | 17 | 2 | 3 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 6 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 5 | 4 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 9 | NE 6 | NE 6 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NNE 7 | NE 8 | NE 8 | NE 9 | NE 9 | NE 9 | NE 8 | NE 9 | NE 9 | NNE 9 |
| kJ | 160 | 164 | 46 | 54 | 118 | 145 | 176 | 180 | 180 | 193 | 243 | 243 | 221 | 193 | 85 | 196 | 211 | 216 | 182 | 174 | 180 | 216 | 221 | 252 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 4 | 4 | 4 | 4 | 4 | 4 | 112 | 136 | 14 | 4 | 4 | 14 | 19 | 103 | 449 | 14 | 4 | 4 | 14 | 4 | 4 | 4 | 446 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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