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Cannons Surf Forecast
/ HAW – Kaua'i (25 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Cannons surfForecast / HAW – Kaua'i / USA
12 Day Weather and Surf, issued 7 am Tuesday 16 Sep 2025 HST
Best Forecast Surf Conditions for Cannons this week:
The most powerful waves expected at Cannons in the next 12 days are 1.9m 8s and forecast to arrive on Sunday (Sep 21) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Sep 17) at 2AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sun 21st Sep) | 6ft (1.9m) 8s |
Table - best surf conditions forecast for Cannons over the next 12 days.
Short Range Forecast Light rain (total 5mm), mostly falling on Tue night. Warm (max 28°C on Thu afternoon, min 25°C on Tue morning). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Fri night. Warm (max 28°C on Fri afternoon, min 25°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 9 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 56 | 58 | 22 | 14 | 36 | 57 | 72 | 29 | 48 | 58 | 117 | 175 | 185 | 191 | 207 | 434 | 354 | 285 | 284 | 277 | 231 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross |
High Tide / height (m) | 11:43AM 0.71 | 11:49PM 0.27 | 12:29PM 0.71 | 12:35AM 0.34 | 1:07PM 0.69 | 1:15AM 0.40 | 1:38PM 0.66 | 1:52AM 0.46 | 2:05PM 0.62 | 2:27AM 0.51 | 2:29PM 0.56 | 3:02AM 0.55 | 2:50PM 0.51 | 3:36AM 0.58 | |||||||
Low Tide / height (m) | 6:50PM 0.13 | 4:38AM 0.06 | 7:08PM 0.12 | 5:35AM 0.05 | 7:25PM 0.11 | 6:23AM 0.06 | 7:41PM 0.09 | 7:06AM 0.07 | 7:56PM 0.08 | 7:48AM 0.10 | 8:12PM 0.07 | 8:28AM 0.13 | 8:29PM 0.05 | ||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | |||||||||||||||
| Sunrise | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - |
| Sunset | - | 6:39 | - | - | 6:38 | - | - | 6:37 | - | - | 6:37 | - | - | 6:36 | - | - | 6:35 | - | - | 6:34 | - |
 | |  |  |  |  | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | 1 | - | 1 | - | - | - | 3 | - | - | 3 | - | - | 4 | 3 | 1 | 1 | - | - | - |
| Temp. °C | 27 | 27 | 26 | 26 | 27 | 26 | 27 | 28 | 26 | 27 | 28 | 25 | 26 | 27 | 26 | 27 | 27 | 25 | 26 | 27 | 26 |
| Feels °C (?) | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 26 | 26 | 27 | 27 | 28 | 27 | 25 | 26 | 27 | 26 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Kaua'i
Offshore wind reported 27 km from Cannons (light winds from the WSW at Barking Sands/Kauai Airport 27 km from Cannons). 0.5m 8s swell from the N to make surfable waves.
27 km away, 2 h 32 min ago
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 Cannons 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 Cannons Surf forecast
The above surf forecast table for Cannons provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cannons can be found by selecting the local surf guide option on the grey menu. Our Cannons 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 (Cannons) 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 Cannons 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 Cannons, camping, hotels and condos and appartments in Kaua'i, consider staying in Lihue - Kauai which is 36 km (22 miles) away. Alternatively, find information about places to stay and car hire in Nawiliwili which is 36 km (22 miles) away
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