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Ammonias Surf Forecast
/ HAW – Kaua'i (25 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Ammonias surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 am Friday 10 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Ammonias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ammonias sea temperature is
24.3° C
(Which is normal for this time of year)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 8AM is: 3.0m 8s primary swell from a South direction and 0.6m 8s secondary swell from a East direction (forecast issued at 01:00am April 10). An open ocean swell of 0.4m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Apr) | 10ft (3.0m) | 8s |
| Afternoon (10 Apr) | 8ft (2.5m) | 8s |
| Evening (10 Apr) | 5.5ft (1.7m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 10 | Saturday 11 | Sunday 12 | ||||||||||||||||||||||
| 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 | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 13 | 13 | 13 | 13 | 12 | 12 | 8 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 985 | 487 | 804 | 929 | 1033 | 860 | 695 | 476 | 330 | 238 | 147 | 104 | 69 | 55 | 168 | 168 | 123 | 115 | 108 | 104 | 28 | 129 | 127 | 87 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross | off | glass | glass | glass | glass | glass | glass | glass | glass | glass | cross- off | cross | glass | glass | glass | glass | glass | glass | on |
High Tide / height (m) | 10:49PM 0.46 | 11:27AM 0.14 | 11:43PM 0.47 | 12:20PM 0.19 | 12:24AM 0.47 | 1:01PM 0.25 | ||||||||||||||||||
Low Tide / height (m) | 7:30AM 0.10 | 3:29PM 0.09 | 7:19AM 0.09 | 4:57PM 0.09 | 7:23AM 0.06 | 6:05PM 0.07 | ||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - | 6:20 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:55 | - |
 | | |  |  |  |  |  | | |  | |  | | | |  | |  |  | | | | | |
Rain (mm) | 15 | 14 | 32 | 26 | 29 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | 4 | 3 | 1 | 1 | 1 | 1 |
| Temp. °C | 22 | 22 | 22 | 22 | 23 | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 22 | 20 | 20 | 21 | 21 | 21 | 21 |
| Feels °C (?) | 19 | 21 | 21 | 20 | 23 | 24 | 26 | 25 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 24 | 22 | 24 | 22 | 23 | 24 | 24 | 24 | 23 |
- 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 Ammonias 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.
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