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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 pm Saturday 25 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
25.3° C
(Which is slightly warmer than usual)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 10PM is: 0.6m 15s primary swell from a South-southwest direction (forecast issued at 01:00pm April 25). An open ocean swell of 0.4m 12s is not directed at the surf break, a second open ocean swell of 1.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 1.5ft (0.5m) | 15s |
| Afternoon (25 Apr) | 2ft (0.6m) | 16s |
| Evening (25 Apr) | 2ft (0.6m) | 15s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 17mm), heaviest on Tue morning. Warm (max 25°C on Sat afternoon, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | |
112 | 158 | 162 | 160 | 152 | 144 | 142 | 169 | 169 | 169 | 211 | 134 | 131 | 203 | 198 | 158 | 154 | 187 | 240 | 353 | 330 | 218 | 192 | 154 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 12:28PM0.25m | 00:08AM0.47m | 1:16PM0.32m | 00:48AM0.42m | 1:56PM0.40m | 1:21AM0.37m | ||||||||||||||||||
Low Tide | 5:15PM0.11m | 7:02AM0.01m | 6:32PM0.12m | 7:21AM-0.01m | 7:37PM0.12m | 7:39AM-0.03m | ||||||||||||||||||
 | | |  | | | | | | | | | | | | | | | |  | | |  |  | |
 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — |
 | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | 7:01 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 3 | 3 | 2 | |
Temp °C | 24 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 |
21 | 23 | 22 | 22 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 22 | 23 | 24 | 22 | 24 | 23 | 24 | 24 | 22 | 22 | 22 | 21 | 23 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SSW 13 | SSW 12 |
 kJ | 112 | 158 | 162 | 160 | 152 | 144 | 142 | 169 | 169 | 169 | 211 | 134 | 131 | 123 | 121 | 118 | 116 | 116 | 84 | 84 | 84 | 83 | 64 | 60 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | SE 7 | NW 10 | NW 10 | SE 7 | NE 8 | SE 7 | SE 7 |
| kJ | 39 | 68 | 67 | 65 | 58 | 57 | 58 | 57 | 56 | 54 | 53 | 50 | 31 | 30 | 30 | 30 | 29 | 13 | 27 | 27 | 8 | 18 | 7 | 8 |
Swell 3 Height (m) Direction Period (s) | NNW 13 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | W 10 | W 10 | W 10 | SE 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | NW 11 | SE 7 | SE 7 | NW 10 | SE 7 | NE 8 | NNE 8 |
| kJ | 68 | 38 | 38 | 37 | 20 | 19 | 17 | 17 | 7 | 8 | 7 | 2 | 6 | 6 | 10 | 9 | 12 | 29 | 8 | 8 | 27 | 8 | 11 | 7 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 324 | 306 | 253 | 247 | 196 | 191 | 215 | 235 | 235 | 215 | 210 | 215 | 248 | 203 | 198 | 158 | 154 | 187 | 240 | 353 | 330 | 218 | 192 | 154 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 31 | 33 | 31 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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