- Forecast
- Maps
- Live
- Weather State
- Spot Information
Waialua Rivermouth Surf Forecast
/ HAW – Molokai (14 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waialua Rivermouth surfForecast / HAW – Molokai / USA
48hr Weather and Surf, issued 7 pm Saturday 16 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
25.2° 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 12AM is: 1.7m 8s primary swell from a East direction and 0.6m 11s secondary swell from a Northwest direction (forecast issued at 07:00pm May 16). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | - | - |
| Afternoon (17 May) | 6ft (1.9m) | 8s |
| Evening (17 May) | 5.5ft (1.7m) | 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 4mm), mostly falling on Sat night. Warm (max 26°C on Sat night, min 23°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the E by Sun night). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 7 | |
448 | 437 | 393 | 393 | 358 | 309 | 326 | 326 | 509 | 692 | 706 | 670 | 612 | 565 | 573 | 573 | 509 | 488 | 453 | 412 | 412 | 345 | 419 | 457 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 3:15PM0.78m | 2:54AM0.20m | 4:01PM0.79m | 3:46AM0.17m | 4:51PM0.78m | 4:45AM0.15m | ||||||||||||||||||
Low Tide | 10:48PM0.02m | 8:38AM-0.12m | 11:47PM0.01m | 9:20AM-0.11m | 00:48AM0.01m | 10:06AM-0.07m | ||||||||||||||||||
 |  |  | | |  | | |  | |  | | | |  | | | | | | | | | | |
 | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:47 | — | — | — |
 | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | 6:59 |
2 | — | 1 | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 26 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 24 |
28 | 30 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 21 | 21 | 21 | 23 | 22 | 22 | 23 | 23 | 21 | 21 | 21 | 22 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SW 14 | SW 14 | SW 14 | SSW 14 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NNW 11 | NW 11 |
 kJ | 448 | 437 | 393 | 393 | 358 | 309 | 326 | 326 | 65 | 38 | 37 | 35 | 52 | 51 | 51 | 80 | 42 | 38 | 37 | 69 | 61 | 59 | 82 | 103 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SSW 15 | SW 15 | SW 15 | SW 14 | NW 9 | NW 9 | NW 14 | NW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 |
| kJ | 96 | 96 | 94 | 72 | 69 | 69 | 68 | 67 | 85 | 55 | 54 | 53 | 22 | 21 | 48 | 45 | 45 | 48 | 47 | 47 | 48 | 51 | 51 | 80 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 15 | NW 18 | NW 16 | NW 16 | NW 16 | NW 15 | NW 15 | NW 9 | SW 19 | SW 19 | SSW 19 | NNW 8 | SSW 17 | SW 18 | SW 18 | SW 18 | SW 18 |
| kJ | 57 | 56 | 54 | 54 | 54 | 54 | 84 | 84 | 78 | 68 | 66 | 62 | 55 | 54 | 21 | 59 | 59 | 37 | 7 | 29 | 49 | 49 | 49 | 49 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | ENE 8 | ENE 8 | — | ENE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 7 |
| kJ | — | — | — | — | — | 165 | 165 | — | 509 | 692 | 706 | 670 | 612 | 565 | 573 | 573 | 509 | 488 | 453 | 412 | 412 | 345 | 419 | 457 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 14 | 0 | 19 | 15 | 19 | 23 | 19 | 27 | 23 | 23 | 25 | 23 | 25 | 25 | 23 | 23 | 23 | 23 | 23 | 25 | 23 | 25 | 23 | 23 |
Best forecast wave conditions in Molokai | ||||||||||||||||||||||||
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 Waialua Rivermouth 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