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Waialua Rivermouth Surf Forecast
/ HAW – Molokai (14 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waialua Rivermouth surfForecast / HAW – Molokai / USA
48hr Weather and Surf, issued 1 pm Thursday 21 May 2026 HSTForecast update in hr min s Forecast update imminent
Waialua Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waialua Rivermouth sea temperature is
25.4° C
(Which is normal for this time of year)How big are the waves at Waialua Rivermouth today?
The current surf forecast for Waialua Rivermouth at 8PM is: 3.0m 8s primary swell from a East-northeast direction and 0.4m 10s secondary swell from a Northwest direction (forecast issued at 01:00pm May 21). An open ocean swell of 0.3m 15s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 10ft (3.0m) | 8s |
| Afternoon (21 May) | 10ft (3.0m) | 8s |
| Evening (21 May) | 10ft (3.0m) | 8s |
Table - waves today at Waialua Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 24°C on Thu afternoon, min 23°C on Thu afternoon). Mainly strong winds. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
979 | 1118 | 1216 | 1140 | 1165 | 1094 | 1024 | 953 | 864 | 870 | 897 | 935 | 989 | 897 | 878 | 878 | 958 | 1003 | 925 | 903 | 844 | 778 | 759 | 809 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 7:35PM0.63m | 9:07AM0.22m | 8:31PM0.57m | 10:26AM0.30m | 9:25PM0.50m | |||||||||||||||||||
Low Tide | 12:03PM0.05m | 3:38AM-0.00m | 1:28PM0.12m | 4:19AM-0.01m | 3:12PM0.17m | 4:53AM-0.02m | ||||||||||||||||||
 | | |  | |  | | | | | | | | |  | |  |  | | | | | | | |
 | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:46 | — |
 | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | 7:00 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
20 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 18 | 19 | 18 | 18 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 10 | NW 10 | NW 10 | NNW 10 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NNW 16 | NNW 16 | NW 15 | NW 14 | NW 14 | NW 13 | NW 13 |
 kJ | 19 | 24 | 24 | 24 | 24 | 23 | 25 | 25 | 25 | 41 | 45 | 57 | 57 | 57 | 56 | 55 | 53 | 171 | 160 | 217 | 211 | 191 | 180 | 175 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | SSW 16 | NNW 18 | NW 16 | NW 10 | NNW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 |
| kJ | 24 | 24 | 44 | 43 | 42 | 21 | 21 | 21 | 21 | 20 | 19 | 18 | 29 | 26 | 26 | 61 | 69 | 51 | 40 | 25 | 25 | 24 | 24 | 25 |
Swell 3 Height (m) Direction Period (s) | NW 9 | SSW 13 | S 21 | S 12 | S 12 | SW 12 | S 12 | S 12 | SW 18 | SSW 18 | SSW 18 | SSW 18 | SSW 13 | SSW 13 | NNW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 3 | 16 | 9 | 3 | 3 | 6 | 3 | 3 | 13 | 31 | 30 | 30 | 17 | 17 | 32 | 25 | 25 | 25 | 48 | 44 | 21 | 21 | 21 | 21 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 979 | 1118 | 1216 | 1140 | 1165 | 1094 | 1024 | 953 | 864 | 870 | 897 | 935 | 989 | 897 | 878 | 878 | 958 | 1003 | 925 | 903 | 844 | 778 | 759 | 809 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 27 | 181 | 174 | 27 | 23 | 23 | 27 | 28 | 51 | 181 | 51 | 25 | 23 | 25 | 163 | 322 | 313 | 25 | 27 | 27 | 25 | 23 | 28 |
Best forecast wave conditions in Molokai | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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