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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 Saturday 30 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 (30 May):
- Morning surf: Morning surf (30 May, local time) - 3.5ft (1.0m), 17s period with S swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 3.5ft (1.0m), 16s period with S swell.
- Evening surf: Evening surf (30 May, local time) - 3.5ft (1.0m), 16s period with S swell.
The current surf forecast for Ammonias at 8AM is: 1.0m 17s primary swell from a South direction and 0.6m 12s secondary swell from a South direction, 1.3m 7s secondary swell from a East-northeast direction (forecast issued at 01:00am May 30). The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 3.5ft (1.0m) | 17s |
| Afternoon (30 May) | 3.5ft (1.0m) | 16s |
| Evening (30 May) | 3.5ft (1.0m) | 16s |
Table - waves today at Ammonias. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Sat night. Warm (max 25°C on Mon afternoon, min 22°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
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 | S 19 | S 19 | S 18 | S 18 | S 18 | S 18 | S 17 | |
627 | 613 | 600 | 596 | 562 | 535 | 529 | 516 | 416 | 411 | 395 | 375 | 288 | 284 | 280 | 276 | 369 | 470 | 455 | 515 | 639 | 632 | 625 | 596 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 2:11AM0.18m | 3:54PM0.64m | 2:46AM0.16m | 4:28PM0.64m | 3:19AM0.16m | 5:03PM0.63m | ||||||||||||||||||
Low Tide | 8:00AM-0.06m | 11:22PM0.12m | 8:32AM-0.06m | 00:00AM0.12m | 9:06AM-0.05m | |||||||||||||||||||
 |  |  | | | |  | | | |  | | | | | | | | | | | | | | |
 | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
1 | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 22 | 23 | 24 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 24 | 24 | 23 | 22 | 22 | 23 | 24 | 25 | 24 | 23 | 23 |
23 | 22 | 23 | 23 | 23 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 25 | 25 | 25 | 23 | 22 | 23 | 23 | 24 | 24 | 23 | 22 | 23 | |
Swell 1 Height (m) Direction Period (s) | S 18 | S 18 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | SSW 16 | ENE 7 | 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 |
 kJ | 627 | 613 | 600 | 596 | 562 | 535 | 529 | 516 | 416 | 117 | 395 | 375 | 288 | 284 | 280 | 276 | 276 | 273 | 455 | 515 | 639 | 632 | 625 | 596 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | N 8 | N 8 | SSW 16 | N 8 | N 8 | N 8 | SSE 10 | SSE 10 | S 20 | S 19 | S 19 | SSW 14 | SSW 14 | S 14 | S 13 | S 13 | S 21 |
| kJ | 119 | 103 | 102 | 69 | 68 | 68 | 66 | 35 | 51 | 411 | 36 | 34 | 33 | 37 | 36 | 276 | 369 | 470 | 273 | 207 | 134 | 125 | 126 | 441 |
Swell 3 Height (m) Direction Period (s) | NNE 11 | NNE 11 | NNW 10 | NNW 10 | N 10 | N 8 | N 8 | S 11 | S 11 | N 9 | S 11 | S 11 | S 11 | NNE 8 | NNE 8 | NNE 8 | ENE 7 | NNW 10 | NNW 10 | N 10 | N 10 | N 9 | S 22 | S 13 |
| kJ | 65 | 64 | 32 | 31 | 47 | 37 | 37 | 61 | 39 | 38 | 37 | 36 | 35 | 20 | 19 | 21 | 43 | 33 | 32 | 46 | 45 | 41 | 227 | 125 |
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 4 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 171 | 162 | 164 | 140 | 148 | 148 | 153 | 143 | 125 | — | 84 | 86 | 97 | 97 | 97 | 104 | 21 | 99 | 59 | 97 | 99 | 104 | 121 | 124 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 16 | 16 | 31 | 31 | 31 | 16 | 16 | 12 | 10 | 10 | 15 | 14 | 12 | 15 | 16 | 16 | 10 | 16 | 31 | 31 | 16 | 16 | 16 |
Best forecast wave conditions in Kaua'i | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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