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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 Sunday 31 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
25.2° C
(Which is normal for this time of year)How big are the waves at Ammonias today (31 May):
- Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 15s period with SSW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 2.5ft (0.8m), 15s period with SSW swell.
- Evening surf: Evening surf (31 May, local time) - 2.5ft (0.8m), 14s period with SSW swell.
The current surf forecast for Ammonias at 11AM is: 0.9m 15s primary swell from a South-southwest direction and 0.9m 7s secondary swell from a East-northeast direction (forecast issued at 07:00am May 31). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 3ft (0.9m) | 15s |
| Afternoon (31 May) | 2.5ft (0.8m) | 15s |
| Evening (31 May) | 2.5ft (0.8m) | 14s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue morning. Warm (max 25°C on Sun morning, min 22°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 20 | S 19 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 | S 16 | S 20 | S 20 | S 20 | S 16 | S 16 | S 18 | S 18 | S 18 | |
411 | 395 | 375 | 288 | 284 | 280 | 276 | 369 | 470 | 455 | 515 | 639 | 632 | 625 | 596 | 548 | 535 | 753 | 753 | 762 | 734 | 1437 | 1051 | 1039 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | |
High Tide | 2:46AM0.16m | 4:28PM0.64m | 3:19AM0.16m | 5:03PM0.63m | 3:53AM0.15m | 5:41PM0.61m | ||||||||||||||||||
Low Tide | 8:32AM-0.06m | 00:00AM0.12m | 9:06AM-0.05m | 00:39AM0.12m | 9:42AM-0.03m | 1:23AM0.12m | ||||||||||||||||||
 |  | | | | | | | | | | |  | |  | | | |  | | |  | | | |
 | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | 5:52 |
 | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | 7:16 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | |
Temp °C | 23 | 23 | 25 | 25 | 24 | 24 | 23 | 23 | 22 | 23 | 25 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 25 | 24 | 24 | 24 | 24 |
24 | 24 | 26 | 26 | 24 | 25 | 23 | 23 | 22 | 23 | 25 | 25 | 23 | 24 | 23 | 23 | 23 | 24 | 23 | 24 | 23 | 24 | 24 | 25 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 16 | S 16 | S 18 | S 18 | S 18 |
 kJ | 411 | 395 | 375 | 288 | 284 | 280 | 276 | 276 | 273 | 455 | 515 | 639 | 632 | 625 | 596 | 548 | 535 | 743 | 752 | 762 | 734 | 1437 | 1051 | 1039 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 8 | N 8 | N 8 | N 8 | NNE 8 | S 20 | S 19 | S 19 | SSW 14 | S 14 | S 14 | S 13 | S 13 | S 21 | S 21 | S 20 | S 20 | S 20 | SSW 20 | SSW 19 | N 11 | SSW 14 | SSW 14 |
| kJ | 38 | 36 | 34 | 33 | 31 | 19 | 276 | 369 | 470 | 273 | 195 | 134 | 125 | 126 | 441 | 436 | 510 | 753 | 753 | 634 | 621 | 82 | 276 | 276 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | SSE 10 | SSE 10 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | N 10 | N 10 | N 9 | S 22 | S 13 | S 13 | S 13 | N 13 | N 12 | N 12 | N 11 | SE 11 | N 10 | N 10 |
| kJ | 37 | 37 | 36 | 35 | 37 | 36 | 37 | 34 | 33 | 32 | 46 | 45 | 41 | 227 | 125 | 125 | 126 | 28 | 75 | 96 | 86 | 5 | 73 | 49 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
| kJ | 104 | 84 | 86 | 97 | 97 | 104 | 150 | 150 | 134 | 96 | 117 | 120 | 117 | 118 | 108 | 105 | 84 | 95 | 114 | 140 | 176 | 237 | 212 | 182 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 15 | 14 | 12 | 16 | 14 | 14 | 15 | 16 | 31 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 33 | 16 | 16 | 33 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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