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Waimea Rivermouth Surf Forecast
/ HAW – Kaua'i (25 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Waimea Rivermouth surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 7 pm Wednesday 20 May 2026 HSTForecast update in hr min s Forecast update imminent
Waimea Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimea Rivermouth sea temperature is
25.2° C
(Which is normal for this time of year)How big are the waves at Waimea Rivermouth today?
The current surf forecast for Waimea Rivermouth at 2AM is: 1.9m 8s primary swell from a East direction and 0.5m 8s secondary swell from a Southeast direction (forecast issued at 07:00pm May 20). An open ocean swell of 0.7m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 7.5ft (2.3m) | 8s |
| Afternoon (21 May) | 7ft (2.2m) | 8s |
| Evening (21 May) | 1.5ft (0.5m) | 15s |
Table - waves today at Waimea Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 22°C on Thu 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 |    |    |    |    | ||||||||||||||||||||
E 6 | SSW 14 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | S 15 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | S 16 | |
269 | 105 | 466 | 501 | 555 | 699 | 733 | 732 | 686 | 118 | 802 | 856 | 823 | 758 | 668 | 613 | 607 | 600 | 593 | 524 | 566 | 566 | 552 | 124 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 7:40PM0.54m | 7:45AM0.10m | 8:36PM0.49m | 9:33AM0.14m | 9:30PM0.45m | 11:11AM0.20m | ||||||||||||||||||
Low Tide | 4:05AM0.06m | 12:34PM0.02m | 4:49AM0.04m | 1:55PM0.09m | 5:23AM0.02m | |||||||||||||||||||
 |  | | | |  | | | | | | | | | | | | | | | | |  | | |
 | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — |
 | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | 7:14 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 26 | 25 | 24 | 23 | 23 | 24 | 25 | 26 | 25 | 24 | 24 | 23 | 22 | 23 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 |
25 | 24 | 23 | 22 | 22 | 23 | 23 | 24 | 23 | 22 | 22 | 21 | 20 | 21 | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | NE 8 | NE 8 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | SE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NNE 6 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 |
 kJ | 111 | 105 | 68 | 68 | 65 | 69 | 78 | 78 | 78 | 59 | 101 | 112 | 98 | 93 | 86 | 98 | 47 | 98 | 101 | 101 | 101 | 106 | 114 | 166 |
Swell 2 Height (m) Direction Period (s) | NE 8 | NNW 11 | SSW 13 | SE 8 | SE 9 | SE 6 | SE 9 | SE 8 | S 16 | S 15 | SE 8 | SE 9 | SE 10 | S 15 | S 15 | SE 12 | SE 12 | NW 11 | NW 11 | S 16 | S 16 | S 16 | NNW 16 | NNW 15 |
| kJ | 37 | 64 | 69 | 28 | 28 | 24 | 61 | 58 | 129 | 118 | 58 | 67 | 74 | 155 | 109 | 89 | 90 | 57 | 55 | 132 | 185 | 183 | 138 | 144 |
Swell 3 Height (m) Direction Period (s) | NNW 11 | SE 9 | NNW 10 | SSW 17 | SSW 13 | S 16 | S 16 | SSW 16 | SE 6 | NW 10 | S 15 | S 15 | S 15 | SE 12 | SE 9 | S 14 | NW 11 | S 14 | S 17 | NW 10 | NW 10 | SE 12 | S 16 | S 16 |
| kJ | 65 | 21 | 37 | 95 | 59 | 135 | 134 | 87 | 20 | 17 | 112 | 157 | 110 | 92 | 27 | 106 | 57 | 93 | 148 | 52 | 50 | 87 | 127 | 124 |
Wind waves Height (m) Direction Period (s) | E 6 | NE 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | NE 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 269 | 38 | 466 | 501 | 555 | 699 | 733 | 732 | 686 | 73 | 802 | 856 | 823 | 758 | 668 | 613 | 607 | 600 | 593 | 524 | 566 | 566 | 552 | 588 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 156 | 3 | 330 | 6 | 15 | 15 | 6 | 330 | 333 | 454 | 332 | 3 | 3 | 3 | 0 | 0 | 3 | 3 | 3 | 6 | 3 | 0 | 6 | 3 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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