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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 am Thursday 23 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
25.0° C
(Which is slightly warmer than usual)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 1PM is: 0.6m 4s primary swell from a East-northeast direction (forecast issued at 07:00am April 23). An open ocean swell of 1.0m 11s is not directed at the surf break, a second 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 (23 Apr) | 2ft (0.6m) | 4s |
| Afternoon (23 Apr) | 2ft (0.6m) | 4s |
| Evening (23 Apr) | 1.5ft (0.4m) | 12s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Warm (max 24°C on Thu morning, min 21°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sun 26 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 7 | E 4 | E 4 | ENE 4 | ENE 4 | SW 12 | NE 10 | SW 14 | SW 14 | SSW 13 | SSW 16 | SW 13 | SW 13 | SW 13 | SSW 13 | NE 6 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | |
36 | 10 | 11 | 12 | 17 | 35 | 0 | 50 | 47 | 70 | 25 | 44 | 44 | 43 | 69 | 183 | 115 | 112 | 112 | 158 | 162 | 160 | 152 | 144 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 9:41AM0.12m | 10:22PM0.53m | 11:24AM0.17m | 11:20PM0.50m | 12:28PM0.25m | 00:08AM0.47m | ||||||||||||||||||
Low Tide | 5:52AM0.08m | 1:58PM0.05m | 6:19AM0.06m | 3:40PM0.09m | 6:42AM0.04m | 5:15PM0.11m | ||||||||||||||||||
 |  | | | | |  |  | | | | | | | | | |  | | | | | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | 6:09 |
 | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | 7:00 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 22 | 21 | 22 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 |
25 | 24 | 24 | 24 | 24 | 22 | 22 | 21 | 20 | 20 | 22 | 23 | 23 | 22 | 22 | 22 | 20 | 21 | 22 | 22 | 22 | 22 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | NNE 11 | NNE 11 | NNE 11 | NNE 11 | NNE 10 | W 15 | W 15 | W 14 | NNE 10 | NNE 10 | W 13 | W 12 | W 12 | W 12 | W 12 | SW 16 | SW 15 | SW 15 | SW 15 | SSW 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 |
 kJ | 239 | 226 | 222 | 218 | 173 | 109 | 109 | 140 | 122 | 105 | 123 | 113 | 75 | 72 | 71 | 122 | 115 | 112 | 112 | 158 | 162 | 160 | 152 | 144 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 13 | W 13 | W 12 | W 14 | W 12 | W 12 | SW 14 | W 13 | W 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SSW 13 | W 12 | W 12 | WNW 11 | WNW 11 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 12 |
| kJ | 117 | 116 | 114 | 109 | 107 | 44 | 44 | 50 | 126 | 126 | 17 | 44 | 44 | 43 | 69 | 71 | 67 | 40 | 39 | 68 | 67 | 65 | 58 | 57 |
Swell 3 Height (m) Direction Period (s) | NNW 12 | WNW 16 | W 16 | NW 12 | W 12 | SW 12 | NNW 12 | NNW 12 | SW 14 | SSW 13 | SSW 16 | SSW 16 | SSW 16 | NNW 12 | NW 12 | NNW 14 | NNW 12 | NW 14 | NW 13 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 |
| kJ | 59 | 85 | 131 | 36 | 44 | 35 | 27 | 13 | 47 | 70 | 25 | 25 | 25 | 15 | 37 | 20 | 13 | 50 | 44 | 38 | 38 | 37 | 20 | 19 |
Wind waves Height (m) Direction Period (s) | E 7 | E 4 | E 4 | ENE 4 | ENE 4 | NE 10 | NE 10 | NE 10 | ENE 5 | ENE 5 | NE 9 | NE 9 | NE 9 | NE 9 | NE 9 | NE 6 | NE 7 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 36 | 10 | 11 | 12 | 17 | 328 | 355 | 311 | 39 | 42 | 212 | 183 | 179 | 225 | 281 | 183 | 336 | 429 | 388 | 398 | 338 | 299 | 262 | 255 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 31 | 31 | 16 | 16 | 45 | 16 | 45 | 16 | 33 | 118 | 16 | 45 | 45 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
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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