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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 16 May 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
24.5° C
(Which is slightly cooler than normal)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 5PM is: 1.5m 8s primary swell from a East-northeast direction and 0.5m 16s secondary swell from a South-southwest direction (forecast issued at 01:00pm May 16). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 5ft (1.5m) | 8s |
| Afternoon (16 May) | 5ft (1.5m) | 8s |
| Evening (16 May) | 4.5ft (1.4m) | 8s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Sun night. Warm (max 25°C on Sat afternoon, min 23°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | |
319 | 291 | 277 | 250 | 273 | 250 | 250 | 217 | 249 | 270 | 270 | 270 | 306 | 376 | 408 | 486 | 472 | 460 | 426 | 415 | 365 | 306 | 295 | 287 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | |
High Tide | 4:08PM0.71m | 3:09AM0.17m | 4:56PM0.72m | 3:55AM0.15m | 5:47PM0.71m | 4:48AM0.13m | ||||||||||||||||||
Low Tide | 8:27AM-0.14m | 11:19PM0.09m | 9:06AM-0.15m | 00:21AM0.09m | 9:49AM-0.13m | 1:27AM0.09m | ||||||||||||||||||
 | |  |  | | | |  | | | | |  | | | | | | |  | | |  | | |
 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — |
 | — | — | 7:08 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | 7:10 |
1 | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | — | — | — | — | |
Temp °C | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 24 |
25 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 23 | 23 | 23 | 24 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 24 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 9 | SE 9 | SSE 11 | SSW 15 | SSW 15 | SSE 10 | ENE 8 | SE 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 14 | SSW 14 |
 kJ | 319 | 291 | 277 | 250 | 273 | 250 | 250 | 217 | 173 | 128 | 204 | 249 | 242 | 133 | 408 | 102 | 233 | 229 | 166 | 161 | 158 | 158 | 161 | 226 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SSE 10 | SSW 16 | SSE 10 | SSW 17 | SSW 15 | SE 10 | SE 10 | SSW 15 | SSW 15 | SSW 15 | SE 8 | SSE 8 | SSW 14 | SSE 10 | SSW 14 | SSE 10 | SSW 19 | SSW 19 | SSE 10 | SSE 7 | SE 7 | S 17 | SSW 18 |
| kJ | 103 | 69 | 151 | 65 | 113 | 146 | 96 | 184 | 249 | 249 | 249 | 57 | 37 | 239 | 130 | 233 | 88 | 251 | 212 | 38 | 21 | 25 | 149 | 207 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SW 14 | SSE 10 | SSW 16 | SSE 10 | SSE 12 | SSW 16 | SSW 14 | SSE 11 | SSE 11 | SSW 21 | SSE 11 | SSE 10 | SSW 18 | SSW 14 | SSW 18 | SSW 19 | SE 10 | SE 10 | SSE 7 | SE 10 | SSW 17 | SSE 7 | SSE 7 |
| kJ | 47 | 102 | 40 | 153 | 36 | 78 | 147 | 138 | 41 | 48 | 180 | 75 | 73 | 61 | 236 | 64 | 251 | 49 | 48 | 19 | 25 | 92 | 19 | 18 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | — | — | — | — | — | — | — | — | 232 | 270 | 270 | 270 | 306 | 376 | — | 486 | 472 | 460 | 426 | 415 | 365 | 306 | 295 | 287 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 31 | 31 | 31 | 16 | 10 | 10 | 10 | 10 | 31 | 31 | 16 | 16 | 16 | 31 | 31 | 16 | 31 | 31 | 31 | 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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Ocean Swells (m)- Wind Speed (km/h)
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