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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 Friday 29 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
25.1° C
(Which is normal for this time of year)How big are the waves at Ammonias today (29 May):
- Morning surf: Morning surf (29 May, local time) - 3ft (0.9m), 20s period with S swell.
- Afternoon surf: Afternoon surf (29 May, local time) - 3.5ft (1.0m), 19s period with S swell.
- Evening surf: Evening surf (29 May, local time) - 3.5ft (1.0m), 19s period with S swell.
The current surf forecast for Ammonias at 11AM is: 0.9m 20s primary swell from a South direction and 0.5m 11s secondary swell from a South direction, 1.5m 7s secondary swell from a East-northeast direction (forecast issued at 07:00am May 29). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 May) | 3ft (0.9m) | 20s |
| Afternoon (29 May) | 3.5ft (1.0m) | 19s |
| Evening (29 May) | 3.5ft (1.0m) | 19s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Fri afternoon, min 22°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 29 | Saturday 30 | Sunday 31 | Mon 1 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
S 21 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | S 20 | S 19 | |
441 | 530 | 624 | 753 | 738 | 700 | 649 | 627 | 613 | 600 | 596 | 562 | 535 | 529 | 516 | 416 | 411 | 395 | 375 | 288 | 284 | 280 | 276 | 369 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | |
High Tide | 3:21PM0.62m | 2:11AM0.18m | 3:54PM0.64m | 2:46AM0.16m | 4:28PM0.64m | |||||||||||||||||||
Low Tide | 7:30AM-0.06m | 10:44PM0.13m | 8:00AM-0.06m | 11:22PM0.12m | 8:32AM-0.06m | 00:00AM0.12m | ||||||||||||||||||
 |  | | | |  | |  | |  | | | | | | | | | | | | | | | |
 | 5:54 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | 5:52 |
 | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | 7:15 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 23 | 24 | 25 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 24 | 23 | 23 |
22 | 22 | 23 | 24 | 23 | 22 | 22 | 23 | 22 | 23 | 23 | 23 | 24 | 23 | 24 | 24 | 23 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | |
Swell 1 Height (m) Direction Period (s) | S 21 | S 20 | S 20 | S 20 | S 19 | S 19 | S 18 | S 18 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | ENE 7 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
 kJ | 441 | 530 | 624 | 753 | 738 | 700 | 649 | 627 | 613 | 600 | 596 | 562 | 535 | 529 | 516 | 416 | 411 | 395 | 375 | 78 | 284 | 280 | 276 | 276 |
Swell 2 Height (m) Direction Period (s) | N 12 | S 11 | S 11 | S 11 | S 11 | N 11 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | N 8 | N 8 | N 8 | N 8 | N 8 | SSW 15 | NNE 8 | SSE 10 | S 20 | S 19 |
| kJ | 106 | 64 | 63 | 63 | 61 | 61 | 121 | 119 | 103 | 102 | 69 | 68 | 68 | 66 | 35 | 51 | 37 | 37 | 34 | 288 | 20 | 42 | 276 | 369 |
Swell 3 Height (m) Direction Period (s) | S 12 | NNE 10 | NNE 10 | S 14 | NNE 10 | S 11 | NNE 11 | NNE 11 | NNE 11 | NNW 10 | NNE 10 | N 10 | N 8 | N 9 | S 11 | S 11 | S 11 | S 11 | ESE 8 | N 8 | SSE 10 | NNE 8 | NNE 8 | NNE 8 |
| kJ | 66 | 32 | 31 | 61 | 31 | 61 | 66 | 65 | 64 | 32 | 38 | 47 | 37 | 42 | 61 | 39 | 37 | 37 | 19 | 33 | 37 | 19 | 20 | 19 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | — | ENE 7 | ENE 7 | E 7 | ENE 7 |
| kJ | 204 | 210 | 200 | 186 | 162 | 168 | 168 | 168 | 167 | 164 | 144 | 148 | 153 | 153 | 143 | 125 | 104 | 86 | 70 | — | 91 | 78 | 112 | 97 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 12 | 10 | 10 | 12 | 14 | 12 | 10 | 10 | 16 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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