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Surf Forecasts:
Ammonias surfForecast / HAW – Kaua'i / USA
48hr Weather and Surf, issued 1 am Monday 08 Dec 2025 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
25.6° C
(Which is normal for this time of year)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 5AM is: 1.1m 8s primary swell from a East-northeast direction and 0.4m 6s secondary swell from a South-southeast direction (forecast issued at 01:00am December 08). An open ocean swell of 0.6m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Dec) | 3.5ft (1.0m) | 8s |
| Afternoon (08 Dec) | 3ft (0.9m) | 8s |
| Evening (08 Dec) | 3.5ft (1.0m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 08 | Tuesday 09 | Wednesday 10 | ||||||||||||||||||||||
| 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 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 16 | 8 | 8 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 192 | 163 | 159 | 155 | 127 | 96 | 96 | 102 | 147 | 45 | 45 | 79 | 79 | 62 | 62 | 60 | 58 | 58 | 44 | 86 | 44 | 51 | 84 | 76 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on | cross- on | on | glass | glass | glass | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off |
High Tide / height (m) | 6:42AM 0.69 | 6:25PM 0.19 | 7:30AM 0.63 | 8:07PM 0.20 | 8:17AM 0.56 | |||||||||||||||||||
Low Tide / height (m) | 10:41PM -0.02 | 2:28PM 0.13 | 11:31PM 0.05 | 3:17PM 0.12 | 12:27AM 0.12 | 3:57PM 0.10 | ||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:53 | - | - | - | - | - | - | - | 5:53 | - |
 | | |  | | | | | | | |  | | | | |  |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 23 | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 24 | 25 | 24 | 23 |
| Feels °C (?) | 23 | 24 | 24 | 23 | 24 | 26 | 25 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 27 | 26 | 26 | 23 | 23 | 23 | 24 | 24 | 25 | 23 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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