Surf Forecasts:
Cunns surf forecast from 3 Aug 2026:
- Best quality surf: Monday 10 Aug, 6PM (local time) - 8ft (2.5m), 16s period, SW swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 12AM (local time) - 11ft (3.5m), 17s period, SW swell with 6,560 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 12AM (local time) - 4.5ft (1.3m), 13s 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 Tuesday (Aug 04) at 12AM. The primary swell is predicted to be 1.3m and 13s period with a secondary swell of 0.6m and 17s. 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 3.5m 17s and forecast to arrive on Monday (Aug 10) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Aug 04) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 4th Aug) | 4.5ft (1.3m) 13s |
| Best Surf | 6PM (Mon 10th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 12AM (Mon 10th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it. We’ve got a solid 16-day window ahead, but it’s a tale of two halves. The first week is a write-off, but the second half has some real potential.
The forecast starts off with a bit of a shocker. The first recommendation isn’t until Monday the 4th, and even then, it’s a struggle. We’ve got a big gap of no good surf from the start until then. The water temp is sitting at 60°, which is about normal for this time of year, so no need to worry about a freak chill.
Looking at Cunns, this is a reef break that’s pretty exposed to the SW. The early part of the week is a bust. Monday afternoon has a 5ft SW swell, but it’s a cross-off wind and the wave comment says “marginal.” The combined energy is massive at 1121, but the quality just isn’t there. Tuesday afternoon is a total tease: glassy conditions with a 3ft SW groundswell at 15 seconds, but the score is a low one. It’s clean, but tiny. Wednesday through Friday is mostly a mess with strong cross-shore winds and lumpy conditions, with the swell pushing up to 5ft again. By Saturday the 8th, it’s a full-on storm with rain and howling onshore winds, and the swell jumps to 7ft. That’s kite-surfing territory, not paddle surfing. The 8ft stuff on Sunday and Monday the 10th is for experts only, and the wind is just awful.
The real standout comes in the second week. The whole middle of the week from the 13th onwards is still big and lumpy, but hold on. Saturday the 15th afternoon is where it starts to turn. We’ve got a 6ft SW swell, 19 second period, clean conditions with a light cross-off breeze, and a combined energy of 2553. That’s moderate energy, but the long period means good shape. This is a proper groundswell, and at a reef like Cunns, it’ll handle it beautifully.
Then the true highlight is Monday the 17th morning. The swell is a solid 5ft out of the SW, with a 15-second period. The wind is a light cross-off from the ENE, and the wave comment says “excellent surf conditions for experienced surfers.” The combined energy is moderate at 1065. This is the best on offer. The water is clean, the swell is lined up, and it’s not too big for a good session. The Tuesday the 18th also looks very good with 4ft and clean conditions. This is the window to aim for. The crowds at Cunns can be a problem sometimes, so get there early.
Alright, that’s the long and short of it. The first week is a write-off, but the second week delivers. Get your boards ready for that Monday the 17th.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 10°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Sat morning. Warm (max 21°C on Fri afternoon, min 12°C on Sat night). Winds increasing (light winds from the SE on Fri night, near gales from the WSW by Sat night). | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 13 | SW 12 | SW 15 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 16 | SW 17 | SW 16 | SW 16 | WSW 16 | WSW 15 | SW 14 | SW 16 | SW 17 |
Wave Graph  | ||||||||||||||||||||
 kJ | 990 | 600 | 319 | 258 | 322 | 361 | 694 | 581 | 567 | 909 | 1216 | 1256 | 1131 | 966 | 1082 | 2338 | 3238 | 2667 | 3622 | 6560 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross | cross-on | cross-off | off | cross-off | cross-off | cross | cross | cross | cross-on | on | cross-on | cross-on | cross-on | on |
High Tide | 2:48AM1.04m | 2:45PM1.07m | 3:17AM1.01m | 2:52PM0.90m | 3:49AM0.95m | 2:24PM0.75m | 4:31AM0.85m | 11:17AM0.96m | 2:07AM0.58m | 11:38AM1.14m | 1:00AM0.58m | |||||||||
Low Tide | 8:45PM0.08m | 8:43AM0.19m | 9:00PM0.13m | 9:12AM0.35m | 9:08PM0.19m | 9:37AM0.53m | 8:59PM0.25m | 9:18AM0.74m | 8:14PM0.26m | 7:25PM0.20m | 4:19AM0.56m | 7:12PM0.14m | ||||||||
 |  | | |  |  | | | | | |  | |  |  |  |  | | |  | |
 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — |
 | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | — | 6:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 9 | 1 | 2 | — | — | — |
Temp °C | 14 | 12 | 15 | 18 | 17 | 19 | 20 | 17 | 17 | 18 | 17 | 19 | 21 | 19 | 15 | 17 | 13 | 14 | 14 | 13 |
Feels °C | 10 | 7 | 11 | 14 | 11 | 14 | 16 | 14 | 15 | 15 | 13 | 11 | 15 | 14 | 11 | 8 | 3 | 7 | 7 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 12 | SW 15 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 16 | SW 17 | SW 16 | SW 16 | — | — | — | — | SW 17 |
| kJ | 990 | 600 | 319 | 258 | 322 | 361 | 694 | 581 | 567 | 909 | 1216 | 1256 | 1131 | 966 | 1082 | — | — | — | — | 6560 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 15 | SW 10 | SW 21 | SW 15 | SW 9 | SSW 8 | — | S 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 81 | 181 | 233 | 106 | 150 | 134 | 20 | 13 | — | 4 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | ESE 3 | SSW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | 36 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 14 | — | NE 3 | — | NE 3 | N 3 | SW 18 | — | — | — | ENE 3 | N 3 | NNW 4 | N 4 | NW 4 | WSW 16 | WSW 15 | SW 14 | SW 16 | SW 18 |
| kJ | 50 | — | 2 | — | 3 | 8 | 81 | — | — | — | 3 | 6 | 12 | 18 | 18 | 2338 | 3238 | 2667 | 3622 | 4185 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1048 | 0 | 0 | 0 | 0 | 0 | 132 | 0 | 0 | 0 | 0 | 178 | 178 | 0 | 649 | 1228 | 1287 | 1287 | 1659 | 1344 |
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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