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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 09 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 5PM is: 0.4m 15s primary swell from a South-southwest direction (forecast issued at 01:00pm May 09). An open ocean swell of 0.4m 11s is not directed at the surf break, a second open ocean swell of 1.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 4.5ft (1.3m) | 6s |
| Afternoon (09 May) | 1ft (0.3m) | 15s |
| Evening (09 May) | 1.5ft (0.4m) | 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 Sat afternoon. Warm (max 24°C on Sat afternoon, min 22°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Sat 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
NE 6 | NE 6 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | NE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | SSW 19 | SSW 18 | SSW 18 | SSW 18 | NE 5 | NE 6 | SSW 17 | SSW 17 | S 16 | |
156 | 187 | 71 | 71 | 71 | 41 | 67 | 57 | 57 | 35 | 105 | 100 | 105 | 122 | 143 | 69 | 106 | 103 | 102 | 126 | 221 | 99 | 92 | 134 | |
Wind (km/h) | ||||||||||||||||||||||||
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High Tide | 10:59AM0.17m | 10:21PM0.45m | 12:00PM0.24m | 11:06PM0.43m | 12:43PM0.32m | 11:47PM0.39m | ||||||||||||||||||
Low Tide | 2:35PM0.13m | 5:47AM0.06m | 4:15PM0.16m | 6:05AM0.02m | 5:45PM0.16m | 6:26AM-0.02m | ||||||||||||||||||
 | | |  | |  | | | | |  | | |  | | | | | | |  | |  |  | |
 | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:58 | — |
 | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | 7:07 |
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | — | 1 | 1 | 1 | 1 | — | — | — | 1 | — | — | |
Temp °C | 24 | 24 | 23 | 23 | 22 | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 23 | 24 | 24 | 23 | 23 | 22 | 22 | 23 |
22 | 22 | 21 | 21 | 20 | 22 | 22 | 23 | 24 | 23 | 23 | 22 | 22 | 23 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 20 | 20 | 21 | |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | SSW 15 | SSW 15 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SSW 17 | SSW 17 | SE 8 |
 kJ | 41 | 41 | 71 | 71 | 47 | 49 | 68 | 60 | 40 | 56 | 32 | 24 | 32 | 32 | 33 | 43 | 53 | 41 | 43 | 40 | 32 | 99 | 92 | 53 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 9 | NW 11 | NW 11 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SE 8 | SE 8 | NNW 10 | NW 12 | NW 12 | NNW 12 | NW 12 | NW 11 | SSW 18 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SE 9 | SE 9 | S 16 |
| kJ | 23 | 23 | 30 | 29 | 71 | 41 | 67 | 57 | 24 | 23 | 39 | 36 | 36 | 53 | 34 | 30 | 106 | 103 | 102 | 101 | 101 | 26 | 29 | 134 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 13 | SSW 13 | SSW 13 | NNW 10 | NNW 10 | SSW 11 | SSW 13 | SSW 19 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NNW 12 | NNW 11 |
| kJ | 44 | 40 | 22 | 13 | 13 | 21 | 21 | 20 | 57 | 35 | 34 | 18 | 18 | 24 | 55 | 69 | 29 | 18 | 18 | 18 | 18 | 18 | 28 | 40 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 |
| kJ | 156 | 187 | 239 | 305 | 363 | 287 | 215 | 167 | 128 | 109 | 105 | 100 | 105 | 122 | 143 | 136 | 118 | 102 | 96 | 126 | 221 | 265 | 238 | 175 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 33 | 45 | 31 | 16 | 118 | 16 | 16 | 16 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
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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