Surf Forecasts:
Cunns surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 6PM (local time) - 3.5ft (1.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 16 Jul, 3PM (local time) - 4.5ft (1.4m), 17s period, SW swell with 1,147 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 6PM (local time) - 3.5ft (1.0m), 15s period with SW swell.
Best Forecast Surf Conditions for Cunns this week:
The surf forecast for Cunns over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 17) at 6PM. The primary swell is predicted to be 1.0m and 15s period with a secondary swell of 0.3m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 1.4m 17s and forecast to arrive on Thursday (Jul 16) at 3PM. 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 16) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 17th Jul) | 3.5ft (1.0m) 15s |
| Best Surf | 6PM (Wed 22nd Jul) | 3.5ft (1.0m) 14s |
| Most Powerful | 3PM (Thu 16th Jul) | 4.5ft (1.4m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s break down what’s coming for Cunns over the next couple of weeks. There’s a big quiet stretch early on, so don’t be in a hurry.
We’re staring down a long gap with no real surf worth paddling for. From Thursday the 16th all the way through Monday the 21st of July, it’s mostly weak, cross-shore slop. The combined energy barely breaks 500 (moderate at best), and the wind is either cross or cross-onshore with a chop. Forget it.
The first real chance comes Tuesday afternoon, the 21st of July. Winds go glassy from the southwest at just 3 mph, with a 4ft SW groundswell on a 13-second period. The combined energy is only 367 (moderate), but the surface is dead calm. It’s a small window but a clean one.
Wednesday the 22nd morning is tidy too. A 3ft SW swell, 12-second period, with a light cross-off breeze from the east at 3 mph. Combined energy is a weak 232, but the waves will be clean and rideable.
Now, the big one. Saturday the 25th of July is your real standout. We’ve got a solid 5ft SW swell with a long 16-second period, and the combined energy hits a strong 1161. That’s proper groundswell power. The morning is clean with a cross-off SE breeze at 12 mph. The afternoon is the killer though – offshore winds from the southeast at 15 mph, swell holding at 5ft, and energy still at 900. Cunns is an inconsistent reef, but when those sets roll through, they’ll be clean, fast, and lined up. This is the session to plan for.
After Saturday, it fades quickly. The energy drops, winds turn onshore from the north and west, and by Monday the 27th it’s lumpy and messy. The long-range stuff around the 30th and 31st has some size but it’s blown out with strong cross-onshore winds – that’s kite-surfing territory.
Bottom line: Saturday the 25th is the gold. Wednesday the 22nd morning is a nice back-up. The rest is mostly a pass.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Thu morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Tue afternoon, min 14°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wed 22 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 813 | 836 | 1147 | 763 | 619 | 532 | 350 | 215 | 205 | 134 | 184 | 516 | 644 | 492 | 412 | 384 | 386 | 363 | 248 | 232 | 106 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross-off | cross | glassy | cross-off | cross-off | cross-off |
High Tide | 1:14AM0.68m | 1:39PM1.33m | 1:29AM0.76m | 1:54PM1.25m | 1:49AM0.83m | 2:05PM1.17m | 2:13AM0.89m | 2:16PM1.10m | 2:41AM0.91m | 2:26PM1.04m | 3:13AM0.90m | 2:35PM0.96m | 3:48AM0.86m | 2:35PM0.87m | |||||||
Low Tide | 6:44AM0.10m | 8:17PM0.25m | 7:10AM0.11m | 8:21PM0.24m | 7:34AM0.15m | 8:28PM0.21m | 7:58AM0.22m | 8:40PM0.17m | 8:22AM0.31m | 8:56PM0.16m | 8:45AM0.42m | 9:13PM0.18m | 9:06AM0.53m | ||||||||
 |  | | | | | | | | |  |  |  | | | | | |  | | | |
 | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — |
 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 15 | 17 | 17 | 15 | 18 | 17 | 16 | 19 | 18 | 17 | 19 | 19 | 17 | 19 | 19 | 18 | 20 | 18 | 17 | 16 |
Feels °C | 14 | 10 | 12 | 12 | 9 | 12 | 11 | 11 | 15 | 13 | 11 | 14 | 15 | 12 | 16 | 15 | 14 | 18 | 14 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 11 |
| kJ | 813 | 836 | 1147 | 763 | 619 | 532 | 350 | 215 | 205 | 134 | 71 | 516 | 644 | 492 | 412 | 384 | 386 | 363 | 248 | 232 | 101 |
Swell 2 Height (m) Direction Period (s) | — | SW 18 | — | — | — | NNW 4 | — | — | NNW 4 | SW 21 | SW 19 | S 10 | — | S 10 | NNW 4 | — | S 9 | NW 4 | — | — | SW 15 |
| kJ | — | 470 | — | — | — | 6 | — | — | 6 | 18 | 184 | 8 | — | 2 | 7 | — | 2 | 2 | — | — | 75 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 15 | — | — | — | S 10 | — | — | S 9 | — | — | SW 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | 21 | — | — | — | 8 | — | — | 2 | — | — | 106 |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | — | NE 3 | N 3 | — | — | N 3 | — | NNE 3 | N 3 | NW 4 | — | N 4 | — | NE 2 | N 4 | — | — | — | WSW 6 |
| kJ | — | 3 | — | 2 | 3 | — | — | 5 | — | 2 | 11 | 3 | — | 9 | — | 1 | 9 | — | — | — | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 500 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 168 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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 16 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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