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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 7 pm Saturday 28 Mar 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 4AM is: 0.5m 12s primary swell from a South direction and 0.4m 14s secondary swell from a South-southwest direction (forecast issued at 07:00pm March 28). An open ocean swell of 2.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Mar) | 1.5ft (0.5m) | 14s |
| Afternoon (29 Mar) | 1.5ft (0.4m) | 12s |
| Evening (29 Mar) | 1.5ft (0.4m) | 13s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 12 | 14 | 14 | 14 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 11 | 12 | 11 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 135 | 133 | 93 | 78 | 104 | 104 | 63 | 47 | 47 | 47 | 58 | 57 | 56 | 55 | 51 | 30 | 30 | 29 | 26 | 29 | 26 | 25 | 25 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide / height (m) | 1:37AM 0.53 | 2:02PM 0.30 | 2:11AM 0.50 | 2:41PM 0.37 | 2:40AM 0.46 | |||||||||||||||||||
Low Tide / height (m) | 6:32PM 0.02 | 8:22AM 0.02 | 7:29PM 0.02 | 8:39AM 0.00 | 8:19PM 0.03 | 8:56AM -0.02 | ||||||||||||||||||
Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:31 | - | - | - | - | - | - | - | 6:31 | - | - |
| Sunset | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - | 6:51 | - | - | - | - | - | - | - |
 |  |  | | | |  | | | | | | |  | |  | | |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | 1 | 1 | - | 1 | - |
| Temp. °C | 22 | 21 | 21 | 20 | 21 | 20 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Feels °C (?) | 17 | 16 | 16 | 16 | 16 | 15 | 16 | 15 | 16 | 15 | 15 | 16 | 15 | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 |
- 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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