Surf Forecasts:
Cunns surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 12PM (local time) - 6ft (1.8m), 15s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 3AM (local time) - 6ft (1.8m), 15s period, SSW swell with 1,428 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 4.5ft (1.3m), 14s 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 Monday (Sep 14) at 3AM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.1m and 20s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 1.8m 15s and forecast to arrive on Wednesday (Sep 16) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Sep 15) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 14th Sep) | 4.5ft (1.3m) 14s |
| Best Surf | 12PM (Wed 16th Sep) | 6ft (1.8m) 15s |
| Most Powerful | 3AM (Wed 16th Sep) | 6ft (1.8m) 15s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, let’s get into it. The start of this run is a bit of a wash, but there’s some clean stuff coming, and the end of the window has some serious size.
Sunday the 13th is a no-go—cross-onshore wind, choppy, and messy. Monday the 14th is the first real chance: glassy in the morning with a clean 3ft SW swell. The period is a bit short, but it’s rideable.
Then things get a little ordinary. Tuesday and Wednesday bring some size—around 5ft—but the wind is fresh offshore or cross-off, so it’s clean but not great quality. Thursday the 17th has lighter winds and clean waves, but the swell drops to 3-4ft. Nothing flash, but okay.
Friday the 18th and Saturday the 19th are poor. Small, messy, and blown out. That’s a couple of days of nothing.
Sunday the 20th kicks back in with 6-7ft, but it’s short-period and choppy—not worth the hassle.
Monday the 21st is where it starts to build. Swell pushes to 6-7ft, and by the afternoon, it’s clean for experienced surfers.
Tuesday the 22nd is the standout. Morning has 7-8ft of SW groundswell with a 18-second period, light offshore wind, and clean conditions. This is a proper session—advanced only, but if you know what you’re doing, this is the one. The energy is huge. Afternoon holds 7-8ft but the period drops a bit, still clean.
Wednesday the 23rd and Thursday the 24th morning ease off to around 4-5ft, still clean. But Thursday afternoon is the sneaky good one—5-6ft, clean, moderate offshore, and the energy jumps up. That’s a quality afternoon wave.
Friday the 25th is the big one. Swell jumps to 8ft in the morning, and by the afternoon it’s 10ft from the SSW with a 16-second period. Massive energy. But the winds are cross-on and it’s a bit choppy. This is serious, expert-only territory, and it’s not going to be pretty.
Saturday the 26th drops back to 6ft, but the winds turn cross and light. Sunday the 27th is a clean little reset—3-4ft, glassy in the afternoon. Good for a fun session, nothing heavy.
Monday the 28th is another poor one—strong winds, small swell.
So the real standouts are Tuesday the 22nd morning and Thursday the 24th afternoon. Friday the 25th is big, but it’s messy and only for the hardcore.
Cunns is inconsistent, so when it’s on, you make the most of it. Water temp is around 60°, which is about normal for this time of year, so a full wetsuit is still on.
Watch for that Tuesday and Thursday window. That’s the good stuff.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon morning, min 8°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the SE by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Fri afternoon, min 8°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 16 | SW 16 | SW 14 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 15 | SW 16 | SW 14 | SW 13 | SW 17 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 432 | 627 | 676 | 166 | 390 | 728 | 949 | 911 | 911 | 1246 | 1417 | 962 | 648 | 410 | 286 | 113 | 299 | 169 | 144 | 100 | 361 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 12:58PM1.18m | 1:14AM1.30m | 1:09PM1.14m | 1:31AM1.32m | 1:19PM1.09m | 1:48AM1.30m | 1:29PM1.04m | 2:06AM1.24m | 1:37PM0.97m | 2:22AM1.15m | 1:38PM0.90m | 2:36AM1.02m | 1:21PM0.83m | 2:39AM0.88m | |||||||
Low Tide | 7:01PM-0.05m | 7:19AM0.05m | 7:11PM-0.08m | 7:37AM0.10m | 7:23PM-0.08m | 7:53AM0.17m | 7:36PM-0.05m | 8:08AM0.26m | 7:47PM0.01m | 8:19AM0.37m | 7:53PM0.09m | 8:21AM0.50m | 7:48PM0.18m | ||||||||
 | |  | |  | | | | | | |  | | | | | | | | | | |
 | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 17 | 16 | 15 | 13 | 12 | 12 | 13 | 15 | 13 | 18 | 21 | 21 | 23 | 26 | 26 | 28 | 31 | 28 |
Feels °C | 12 | 10 | 12 | 15 | 12 | 12 | 7 | 5 | 6 | 7 | 9 | 8 | 14 | 17 | 16 | 16 | 19 | 21 | 18 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 14 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 11 | SW 16 | SW 14 | SW 13 | SW 13 | — |
| kJ | 432 | 627 | 676 | 166 | 390 | 728 | 949 | 911 | 911 | 1246 | 1417 | 962 | 648 | 410 | 286 | 87 | 299 | 169 | 144 | 85 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 14 | SW 18 | — | — | — | — | — | — | S 6 | — | — | SW 16 | SW 15 | — | — | SW 20 | SW 17 | — |
| kJ | — | — | — | 158 | 109 | — | — | — | — | — | — | 21 | — | — | 208 | 104 | — | — | 16 | 100 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 19 | SW 14 | — | — | — | — | — | — | — | — | — | — | SW 18 | — | — | — | — | — |
| kJ | — | — | — | 57 | 125 | — | — | — | — | — | — | — | — | — | — | 113 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | — | — | — | SW 18 | SSE 3 | SSE 5 | SSE 5 | SE 6 | ESE 4 | SSE 2 | ESE 4 | ENE 3 | — | ESE 3 | N 3 | NNW 4 | N 3 | N 4 | NW 4 | WSW 7 |
| kJ | 21 | — | — | — | 79 | 1 | 39 | 56 | 95 | 24 | 1 | 15 | 4 | — | 4 | 8 | 4 | 4 | 34 | 40 | 361 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 510 | 879 | 1 | 0 | 632 | 491 | 491 | 491 | 491 | 243 | 491 | 0 | 0 | 0 | 0 | 648 | 489 | 0 | 641 | 632 | 1227 |
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.
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