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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 Wednesday 22 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
24.9° C
(Which is normal for this time of year)| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Apr) | - | - |
| Afternoon (22 Apr) | - | - |
| Evening (22 Apr) | 1.5ft (0.5m) | 7s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 22°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
NNE 15 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | E 7 | ENE 7 | ENE 4 | E 4 | ENE 4 | ENE 4 | NE 4 | NE 4 | SW 12 | NE 10 | SW 14 | SW 14 | SSW 13 | SSW 16 | SW 13 | SW 13 | SW 13 | SSW 13 | |
0 | 0 | 0 | 0 | 0 | 0 | 24 | 36 | 15 | 11 | 11 | 12 | 12 | 12 | 35 | 0 | 49 | 47 | 70 | 25 | 27 | 44 | 43 | 69 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 6:46AM0.10m | 9:13PM0.56m | 9:41AM0.12m | 10:22PM0.53m | 11:24AM0.17m | |||||||||||||||||||
Low Tide | 5:05AM0.10m | 12:36PM-0.01m | 5:52AM0.08m | 1:58PM0.05m | 6:19AM0.06m | 3:40PM0.09m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | |  | | |  | | | | | |
 | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 25 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 23 | 22 | 22 | 22 | 23 | 23 | 24 | 24 | 23 | 23 |
25 | 25 | 27 | 26 | 25 | 25 | 25 | 23 | 24 | 24 | 23 | 24 | 24 | 24 | 22 | 21 | 21 | 20 | 22 | 22 | 23 | 23 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | NE 8 | NNE 14 | NNE 14 | NNE 13 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | NNE 12 | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 10 | W 15 | W 15 | NNE 10 | W 13 | NNE 10 | W 13 | W 12 | W 12 | W 12 | W 12 |
 kJ | 91 | 325 | 390 | 581 | 563 | 489 | 359 | 347 | 336 | 239 | 226 | 222 | 218 | 173 | 109 | 109 | 125 | 126 | 105 | 123 | 113 | 75 | 72 | 71 |
Swell 2 Height (m) Direction Period (s) | NNE 15 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 13 | W 12 | W 14 | W 12 | W 12 | W 14 | SW 14 | W 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SSW 13 |
| kJ | 283 | 257 | 249 | 232 | 173 | 170 | 167 | 123 | 165 | 117 | 116 | 114 | 109 | 206 | 44 | 44 | 140 | 47 | 126 | 17 | 27 | 44 | 43 | 69 |
Swell 3 Height (m) Direction Period (s) | W 14 | NNE 8 | NE 8 | NNW 13 | NNW 13 | NNW 13 | NNW 13 | NW 13 | NW 12 | NNW 12 | WNW 16 | W 16 | NW 12 | NW 12 | SW 12 | NNW 12 | SW 14 | SSE 10 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | NNW 12 | NW 12 |
| kJ | 199 | 56 | 62 | 120 | 116 | 114 | 113 | 79 | 75 | 59 | 85 | 131 | 37 | 36 | 35 | 27 | 49 | 10 | 70 | 25 | 25 | 25 | 15 | 37 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 7 | ENE 7 | ENE 4 | E 4 | ENE 4 | ENE 4 | NE 4 | NE 4 | NE 10 | NE 10 | NE 4 | NE 10 | NE 5 | NE 9 | NE 9 | NE 9 | NE 7 | NE 9 |
| kJ | — | — | — | — | — | — | 24 | 36 | 15 | 11 | 11 | 12 | 12 | 12 | 298 | 322 | 31 | 273 | 35 | 241 | 206 | 281 | 183 | 269 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 10 | 14 | 10 | 14 | 14 | 14 | 14 | 16 | 16 | 14 | 16 | 31 | 31 | 15 | 14 | 127 | 14 | 16 | 16 | 45 | 118 | 16 | 127 | 31 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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