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Cunns Surf Forecast
/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /
Cunns surfForecast / SA – Nullarbor / Australia
12 Day Weather and Surf, issued 2 pm Sunday 20 Jul 2025 ACST
Best Forecast Surf Conditions for Cunns this week:
The surf forecast for Cunns over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 27) at 6PM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.6m and 18s. Another secondary swell of 0.7m and 18s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 12 days are 3.0m 14s and forecast to arrive on Saturday (Jul 26) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 24) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 27th Jul) | 8ft (2.5m) 11s |
| Best Surf | 6PM (Sun 27th Jul) | 8ft (2.5m) 11s |
| Most Powerful | 6PM (Sat 26th Jul) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Cunns over the next 12 days.
Short Range Forecast Moderate rain (total 12mm), heaviest on Mon afternoon. Warm (max 20°C on Sun afternoon, min 11°C on Mon night). Winds decreasing (gales from the W on Mon afternoon, light winds from the W by Tue night). | Days 3-6 Weather Summary Moderate rain (total 19mm), heaviest on Thu night. Very mild (max 16°C on Wed afternoon, min 10°C on Thu night). Winds decreasing (near gales from the NNE on Thu morning, light winds from the NNE by Fri morning). | ||||||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 14 | 14 | 13 | 14 | 13 | 12 | 12 | 11 | 10 | 11 | 12 | 18 | 17 | 11 | 12 | 13 | 14 | 13 | 12 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 1363 | 953 | 651 | 2107 | 3088 | 3183 | 2483 | 1571 | 845 | 560 | 333 | 265 | 357 | 609 | 2827 | 2295 | 2694 | 3208 | 3606 | 3078 | 2415 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross | cross | cross | cross- off | cross | ||
High Tide / height (m) | 11:23AM 1.06 | 1:05AM 0.49 | 11:50AM 1.19 | 12:40AM 0.52 | 12:16PM 1.28 | 12:38AM 0.58 | 12:40PM 1.33 | 12:46AM 0.66 | 1:00PM 1.34 | 12:59AM 0.74 | 1:19PM 1.33 | 1:16AM 0.83 | |||||||||||
Low Tide / height (m) | 7:58PM 0.31 | 7:29PM 0.25 | 4:10AM 0.44 | 7:27PM 0.22 | 5:00AM 0.33 | 7:31PM 0.21 | 5:35AM 0.23 | 7:38PM 0.21 | 6:05AM 0.15 | 7:44PM 0.20 | 6:33AM 0.10 | 7:52PM 0.19 | 6:59AM 0.08 | ||||||||||
Sun 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||||
| Sunrise | - | - | 7:33 | - | - | 7:33 | - | - | 7:33 | - | - | 7:33 | - | - | 7:31 | - | - | 7:31 | - | - | 7:31 | ||
| Sunset | 5:52 | - | - | 5:53 | - | - | 5:54 | - | - | 5:54 | - | - | 5:55 | - | - | 5:55 | - | - | 5:57 | - | - | ||
 |  |  |  |  |  | |  | |  |  | | | | | |  | | | | | |||
Rain (mm) | - | - | - | 3 | 6 | 2 | 1 | - | - | - | - | - | - | 6 | 2 | 3 | 5 | 3 | - | 2 | - | ||
| Temp. °C | 20 | 16 | 20 | 13 | 12 | 13 | 14 | 14 | 14 | 16 | 16 | 14 | 13 | 10 | 11 | 13 | 14 | 13 | 13 | 14 | 14 | ||
| Feels °C (?) | 13 | 8 | 7 | -1 | 0 | 5 | 5 | 8 | 8 | 10 | 11 | 3 | 4 | 3 | 4 | 6 | 4 | 4 | 5 | 6 | 10 | ||
- 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 SA - Nullarbor
Recent cross-onshore wind has turned cross-shore at Cunns (moderate winds from the N at Tarcoola Aero 217 km from Cunns). A 1.8m groundswell from the SW
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 Cunns 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 Cunns Surf forecast
The above surf forecast table for Cunns provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cunns can be found by selecting the local surf guide option on the grey menu. Our Cunns 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 (Cunns) 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 Cunns 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 holiday in Nullarbor? If you are looking for accommodation near Cunns, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.
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