Surf Forecasts:
Cunns surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 7ft (2.1m), 15s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 3PM (local time) - 7ft (2.1m), 19s period, SW swell with 3,301 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 7ft (2.1m), 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 Thursday (Sep 03) at 9PM. The primary swell is predicted to be 2.1m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 2.1m 19s and forecast to arrive on Wednesday (Sep 09) at 3PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Sep 07) at 12PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 3rd Sep) | 7ft (2.1m) 15s |
| Best Surf | 9PM (Thu 3rd Sep) | 7ft (2.1m) 15s |
| Most Powerful | 3PM (Wed 9th Sep) | 7ft (2.1m) 19s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, let’s talk waves over the next couple of weeks. It starts off a bit average but there are a few diamond sessions if you pick your times right. The main spot is Cunns – a reef that really lights up on a solid SW groundswell. Water temp’s about 61°, which is a touch warmer than usual for now – nothing wild, just a bit nice.
Thursday 3rd September morning: 1.6m (about 5 ft) of SW swell, light onshore breeze from the WNW – not great. The 14-second period gives it some push, and the combined energy is 1033 (moderate). The arvo is better: 1.8m (6 ft), clean cross-off wind from the south, energy jumps to 1271 – excellent for experienced surfers. This reef can be inconsistent and crowds can pop up, so keep your head on a swivel.
Friday 4th and Saturday 5th September: swell builds to 2-2.4m (7-8 ft) but the wind’s onshore and lumpy. Energy hits 4251 Friday arvo but it’s all blown out – skip it.
Sunday 6th September morning: 1.8m (6 ft) of clean SW groundswell, a light cross-off breeze from ENE, 1226 energy – this is a beauty. Clean, long period, and the wind is glassy. Afternoon drops to 1.5m (5 ft) but still clean and fun.
Monday 7th to Wednesday 9th September: smaller swell, 0.8m to 1.5m (3-5 ft), but the wind turns offshore from the ESE/SE. The period stretches from 13 to 19 seconds – that’s proper groundswell. Energy ranges from 319 to 2305. Wednesday arvo shows a nice 2.1m (7 ft) swell with a 19-second period and clean offshore breeze – energy 3302 (strong), but it’s expert territory.
Thursday 10th to Friday 11th September: conditions clean but swell drops to 1-1.6m (4-5 ft). Nice cross-off breezes, combined energy 588-1503 – not the standout, but alright.
Saturday 12th and Sunday 13th September: forget it – onshore winds, messy, choppy. Energy drops to 413. Not worth the drive.
Monday 14th September: 1.9m (6 ft) SW swell, clean cross-off from S/SSE, energy 1787 – a solid, clean session for the experienced. That rolls into Tuesday 15th September morning: 1.6m (5 ft) of SW groundswell, 15-second period, *dead calm* with an easterly breeze at just 5 km/h. Combined energy 1201 (moderate). The ocean will be like silk. That’s the absolute best of the whole forecast.
Wednesday 16th September: strong SSW winds, rain squalls, 2.0m (7 ft) messy swell. Energy 1604 but terrible quality. Thursday 17th September morning: 2.5m (8 ft) of clean SW swell, cross-off breeze from the south, energy 2103 – big and clean, experts only. Afternoon drops to 2.3m (8 ft), still clean, energy 1847.
Friday 18th September wraps things up: 1.8m (6 ft) of SW swell, light SSE cross-off, energy 1034 – clean and friendly.
The top calls: Sunday 6th morning for a proper clean session, and Tuesday 15th morning for the absolute glassiest, most perfect conditions you’ll see in this window.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 25°C on Fri morning, min 10°C on Sat night). Winds decreasing (fresh winds from the WSW on Fri night, light winds from the ENE by Sat night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Very mild (max 18°C on Sun afternoon, min 11°C on Sun morning). Winds increasing (light winds from the E on Sun morning, fresh winds from the ESE by Sun night). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | 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 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 19 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1033 | 1220 | 1857 | 1958 | 2490 | 1480 | 2061 | 1668 | 1527 | 1226 | 874 | 444 | 205 | 212 | 850 | 1282 | 1151 | 886 | 1323 | 3301 | 2339 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off |
High Tide | 1:55PM0.86m | 2:56AM1.07m | 1:20PM0.80m | 3:04AM0.92m | 12:18PM0.85m | 2:38AM0.77m | 11:43AM0.99m | 1:29AM0.68m | 11:44AM1.13m | 00:44AM0.70m | 11:57AM1.23m | 00:28AM0.79m | 12:11PM1.28m | 00:26AM0.90m | |||||||
Low Tide | 8:05PM0.07m | 8:45AM0.54m | 7:54PM0.11m | 7:58AM0.69m | 7:31PM0.13m | 6:09AM0.69m | 7:06PM0.13m | 5:24AM0.54m | 6:51PM0.12m | 5:29AM0.37m | 6:45PM0.11m | 5:45AM0.23m | 6:43PM0.10m | ||||||||
 | |  |  |  |  |  | | | | |  | | |  | | | | | | | |
 | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 17 | 25 | 21 | 17 | 14 | 13 | 12 | 16 | 18 | 13 | 12 | 14 | 14 | 13 | 14 | 14 | 17 | 20 | 20 |
Feels °C | 14 | 13 | 14 | 19 | 16 | 12 | 8 | 8 | 10 | 13 | 14 | 7 | 5 | 7 | 9 | 7 | 7 | 8 | 11 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | — | — | SW 13 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 19 | SW 17 |
| kJ | 1033 | 1220 | 1857 | 1958 | 2490 | — | — | 1668 | 1527 | 1226 | 874 | 444 | 205 | 212 | 850 | 1282 | 1151 | 886 | 1323 | 3301 | 2339 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 23 | SSW 6 | SW 20 | SW 13 | S 8 | S 7 | SW 26 | SW 22 | S 7 | SSE 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 21 | 43 | 204 | 282 | 72 | 50 | 105 | 888 | 1 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SW 21 | — | — | — | — | — | S 7 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 71 | — | — | — | — | — | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | SW 14 | E 3 | — | SW 15 | SW 15 | SW 14 | SW 14 | — | — | — | S 5 | SE 5 | SE 5 | SSE 8 | ESE 4 | ESE 4 | SE 7 | SE 7 | — | — |
| kJ | — | 51 | 5 | — | 1761 | 1480 | 2061 | 48 | — | — | — | 43 | 70 | 119 | 215 | 46 | 22 | 112 | 93 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 178 | 0 | 0 | 648 | 503 | 1197 | 1035 | 1048 | 0 | 0 | 510 | 491 | 552 | 491 | 491 | 203 | 491 | 0 | 548 | 153 | 489 |
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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