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Ammonias Surf Forecast
/ HAW – Kaua'i (25 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Ammonias surfForecast / HAW – Kaua'i / USA
12 Day Weather and Surf, issued 7 pm Monday 02 Mar 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 slightly warmer than usual)Best Forecast Surf Conditions for Ammonias this week:
The surf forecast for Ammonias over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Mar 05) at 8AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 1.1m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ammonias in the next 12 days are 1.8m 9s and forecast to arrive on Sunday (Mar 08) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 12s period and expected on Tuesday (Mar 03) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 5th Mar) | 5ft (1.6m) 8s |
| Best Surf | 8AM (Thu 5th Mar) | 5ft (1.6m) 8s |
| Most Powerful | 2PM (Sun 8th Mar) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Ammonias over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 24°C on Tue afternoon, min 22°C on Mon night). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Fri morning. Warm (max 24°C on Fri morning, min 22°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Tuesday 03 | Wednesday 04 | Thursday 05 | Friday 06 | Saturday 07 | Sunday 08 | Mon 09 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 85 | 167 | 194 | 222 | 352 | 375 | 418 | 349 | 309 | 316 | 316 | 277 | 284 | 422 | 393 | 463 | 552 | 564 | 506 | 517 | 449 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross | cross- on | cross- on | cross- on | on | on | cross- on | cross- on | on | cross- on | on | cross- on | |
High Tide / height (m) | 3:49AM 0.55 | 4:06PM 0.37 | 4:14AM 0.49 | 4:46PM 0.40 | 4:37AM 0.43 | 5:28PM 0.43 | 4:57AM 0.36 | 6:11PM 0.44 | 5:10AM 0.30 | 7:00PM 0.45 | 5:11AM 0.24 | 8:01PM 0.44 | ||||||||||
Low Tide / height (m) | 9:02PM -0.03 | 10:14AM 0.01 | 9:45PM 0.01 | 10:33AM -0.01 | 10:30PM 0.05 | 10:54AM -0.02 | 11:17PM 0.10 | 11:15AM -0.02 | 12:11AM 0.15 | 11:37AM -0.02 | 1:19AM 0.19 | 12:02PM 0.00 | 12:32PM 0.02 | |||||||||
Tuesday 03 | Wednesday 04 | Thursday 05 | Friday 06 | Saturday 07 | Sunday 08 | Mon 09 | ||||||||||||||||
| Sunrise | - | 6:56 | - | - | 6:56 | - | - | 6:54 | - | - | 6:54 | - | - | 6:52 | - | - | 6:52 | - | - | 6:50 | - | |
| Sunset | - | - | 6:42 | - | - | 6:42 | - | - | 6:42 | - | - | 6:43 | - | - | 6:43 | - | - | 6:44 | - | - | 6:44 | |
 |  | |  |  | |  | | | |  | |  | | | |  | | | | | ||
Rain (mm) | - | - | - | 1 | 1 | - | - | - | - | - | 1 | 2 | 2 | - | 1 | 3 | 1 | - | 3 | 1 | 1 | |
| Temp. °C | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 23 | 23 | 24 | 23 | 23 | 24 | |
| Feels °C (?) | 23 | 22 | 23 | 22 | 21 | 22 | 22 | 25 | 24 | 23 | 24 | 24 | 24 | 25 | 24 | 24 | 23 | 24 | 25 | 23 | 24 | |
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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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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ammonias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Ammonias Surf forecast
The above surf forecast table for Ammonias provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Ammonias can be found by selecting the local surf guide option on the grey menu. Our Ammonias surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ammonias) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Ammonias may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a vacation in Kaua'i? If you are looking for accommodation near Ammonias, camping, hotels and condos and appartments in Kaua'i, consider staying in Nawiliwili which is 2 km (1 miles) away. Alternatively, find information about places to stay and car hire in Lihue - Kauai which is 3 km (2 miles) away
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