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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 Friday 15 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 normal for this time of year)How big are the waves at Ammonias today?
The current surf forecast for Ammonias at 8AM is: 1.5m 8s primary swell from a East-northeast direction (forecast issued at 01:00am May 15). An open ocean swell of 0.5m 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 (15 May) | 5ft (1.5m) | 8s |
| Afternoon (15 May) | 5ft (1.5m) | 8s |
| Evening (15 May) | 5ft (1.6m) | 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 17mm), heaviest on Fri morning. Warm (max 25°C on Fri afternoon, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 15 | Saturday 16 | Sunday 17 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | 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 | |
203 | 208 | 244 | 244 | 240 | 240 | 240 | 300 | 318 | 264 | 284 | 291 | 291 | 298 | 328 | 353 | 314 | 250 | 250 | 249 | 249 | 256 | 256 | 291 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | |
High Tide | 1:46AM0.25m | 3:24PM0.67m | 2:27AM0.21m | 4:08PM0.71m | 3:09AM0.17m | 4:56PM0.72m | ||||||||||||||||||
Low Tide | 7:51AM-0.13m | 10:18PM0.10m | 8:27AM-0.14m | 11:19PM0.09m | 9:06AM-0.15m | |||||||||||||||||||
 |  |  | | | | | | |  | | | | | | | | |  | |  | |  | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:09 | — | — |
1 | — | 2 | 2 | 1 | 2 | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 |
23 | 23 | 26 | 25 | 24 | 23 | 24 | 25 | 25 | 24 | 25 | 26 | 25 | 24 | 25 | 24 | 25 | 25 | 26 | 26 | 26 | 26 | 25 | 24 | |
Swell 1 Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | N 7 | SSW 16 | SSE 6 | SE 6 | SSW 16 | SW 14 | SSE 10 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | ENE 8 | ENE 8 | SE 11 | SE 9 | SE 9 | SSW 15 | SSW 15 |
 kJ | 203 | 208 | 244 | 244 | 240 | 240 | 24 | 103 | 16 | 18 | 160 | 103 | 41 | 151 | 153 | 113 | 146 | 250 | 250 | 169 | 125 | 112 | 249 | 242 |
Swell 2 Height (m) Direction Period (s) | NNW 13 | NNW 13 | NW 12 | NW 12 | NW 12 | SW 16 | SE 9 | N 7 | SW 14 | SW 14 | SSE 6 | SSE 6 | SW 14 | SW 14 | SE 6 | SW 13 | SSE 12 | SSE 11 | SE 11 | SSW 15 | SSW 15 | SSW 15 | SE 8 | SE 8 |
| kJ | 116 | 111 | 75 | 72 | 71 | 124 | 43 | 23 | 49 | 51 | 13 | 16 | 102 | 100 | 11 | 42 | 91 | 71 | 121 | 249 | 249 | 252 | 60 | 45 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SW 16 | SW 16 | SW 16 | N 8 | SW 16 | SSE 7 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSW 16 | SSE 10 | SE 10 | SSE 12 | SW 24 | SSW 16 | SSW 14 | NNW 10 | SSE 11 | SSE 11 | SSE 11 | SSE 10 |
| kJ | 48 | 48 | 125 | 124 | 124 | 32 | 65 | 19 | 40 | 40 | 39 | 37 | 104 | 40 | 25 | 27 | 141 | 147 | 138 | 20 | 48 | 65 | 64 | 59 |
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 8 | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | — | — | — | — | — | — | 240 | 300 | 318 | 264 | 284 | 291 | 291 | 298 | 328 | 353 | 314 | — | — | 217 | 223 | 256 | 256 | 291 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 12 | 12 | 45 | 31 | 125 | 12 | 14 | 12 | 16 | 31 | 31 | 31 | 31 | 31 | 16 | 15 | 12 | 14 | 15 | 31 | 31 | 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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