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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 am Saturday 18 Apr 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
24.7° 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 1PM is: 0.4m 12s primary swell from a West-southwest direction and 0.4m 7s secondary swell from a Southeast direction (forecast issued at 07:00am April 18). An open ocean swell of 0.5m 12s is not directed at the surf break, a second open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 1.5ft (0.4m) | 12s |
| Afternoon (18 Apr) | 1.5ft (0.4m) | 12s |
| Evening (18 Apr) | 3.5ft (1.0m) | 7s |
Table - waves today at Waimea Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 6 | 6 | 7 | 12 | 12 | 7 | 7 | 7 | 13 | 13 | 14 | 14 | 12 | 13 | 13 | 13 | 13 | 13 | 14 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 52 | 50 | 50 | 50 | 104 | 88 | 118 | 51 | 54 | 56 | 49 | 101 | 59 | 88 | 61 | 62 | 75 | 83 | 52 | 53 | 53 | 87 | 95 | 121 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | off | glass | glass | glass | glass | glass | cross | cross- off | cross- off | cross | cross- on | cross | off | cross- off | cross- off | cross- off | cross- off | glass | on | on | glass | glass | glass |
High Tide / height (m) | 3:45AM 0.21 | 5:12PM 0.55 | 4:18AM 0.17 | 6:03PM 0.55 | 4:53AM 0.13 | 7:00PM 0.53 | ||||||||||||||||||
Low Tide / height (m) | 9:52AM -0.12 | 12:13AM 0.09 | 10:26AM -0.12 | 1:36AM 0.10 | 11:03AM -0.10 | |||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 6:16 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:59 | - | - | - | - | - | - | - | 6:59 | - | - | - | - | - | - | - | 7:00 | - | - | - |
 |  | |  | |  | | | | |  | | |  | | |  |  | | | | | | | |
Rain (mm) | - | - | - | 1 | 1 | - | - | - | - | - | - | - | 1 | 3 | - | - | - | - | - | 1 | - | - | - | - |
| Temp. °C | 23 | 24 | 26 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 24 | 23 |
| Feels °C (?) | 24 | 25 | 29 | 29 | 29 | 29 | 28 | 25 | 24 | 24 | 27 | 27 | 28 | 26 | 24 | 24 | 24 | 26 | 28 | 28 | 27 | 27 | 28 | 27 |
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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
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