Surf Forecasts:
Cassis - Plage de l'Arène surf forecast from 21 Aug 2026:
- Most powerful swell: Friday 28 Aug, 2AM (local time) - 8ft (2.5m), 7s period, WNW swell with 600 kJ wave energy.
Best Forecast Surf Conditions for Cassis - Plage de l'Arène this week:
The most powerful waves expected at Cassis - Plage de l'Arène in the next 16 days are 2.5m 7s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-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 Thursday (Aug 27) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Fri 28th Aug) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Cassis - Plage de l'Arène over the next 16 days.
The Lowdown
Alright, let’s cut through the noise. Rusty here, and I’m telling you, this stretch of coast is looking pretty bleak for the next couple of weeks. There’s a long, flat spell staring us in the face, so don’t get your hopes up.
The only break we’re looking at is Cassis - Plage de l'Arène (Cassis - Plage de l'Arène). It’s a reef break that doesn’t break often, and when it does, it’s usually a fight. The water’s at 74°F, which is pretty much normal for this time of year.
The first week is a total washout. From Friday, August 21st, right through the end of August, it’s tiny, weak, and messy. The only thing that gets a tiny nod is early Sunday morning, August 30th. You get a light offshore wind (10 km/h) and a clean surface, but the swell is a pathetic 3 ft from the WSW with a weak 5-second period. The combined energy is a paltry 66, making it barely rideable. It’s not good, just the least bad.
The real action, such as it is, shows up on Monday, September 1st. The swell jumps to 8 ft from the W, but the period is a short 7 seconds and the wind is howling cross-shore at 15-18 mph. The energy is strong (503), but the conditions are poor—a lumpy, choppy mess. That’s too big for beginners, and the short period will make it fat and crappy.
The one true standout in this whole 16-day forecast is Wednesday morning, September 2nd. The wind drops to zero—dead flat, glassy. The swell is a modest 4 ft from the NW, with a 5-second period and a combined energy of 73. It’s not a big swell, but that glassy, clean surface is a huge deal for a reef break. It’s the only time in the entire period where you’ll get a proper, clean wave. It’s the best on offer, no contest.
Thursday, September 3rd, has some clean conditions in the morning with a 5 ft WNW swell, but it’s a moderate breeze and the energy is moderate (105). It’s a solid backup if you miss the Wednesday glass.
The last few days, from September 4th onwards, are back to small, weak, and messy. Another 6 ft NW swell on Saturday, September 5th, but with a cross-shore wind, it’s a no-go.
So, here’s the deal: the first nine days are basically dead. The only real standout is the glassy morning on Wednesday, September 2nd. If you can, get out there for that. Otherwise, keep the board in the car and wait for a better forecast.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri night, min 22°C on Sat morning). Winds decreasing (fresh winds from the WNW on Fri afternoon, calm by Sun night). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Mon night. Warm (max 30°C on Wed afternoon, min 24°C on Mon night). Winds increasing (light winds from the ESE on Tue night, fresh winds from the ESE by Thu morning). | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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) | W 5 | WNW 6 | WNW 5 | WNW 5 | WNW 4 | WNW 4 | W 3 | ESE 3 | — | SE 4 | SSE 5 | S 5 | S 5 | SSE 6 | SSE 6 | SE 4 | SW 7 | SW 6 | SE 5 | WNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 56 | 148 | 69 | 40 | 21 | 4 | 1 | 0 | 0 | 0 | 3 | 2 | 5 | 21 | 15 | 20 | 2 | 1 | 114 | 600 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-off | cross-on | glassy | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off |
High Tide | 5:37PM0.18m | 6:52PM0.20m | 5:54AM0.14m | 7:37PM0.21m | 6:54AM0.15m | 8:14PM0.23m | 7:36AM0.16m | 8:46PM0.24m | 8:13AM0.17m | 9:15PM0.25m | 8:48AM0.18m | 9:43PM0.26m | ||||||||
Low Tide | 00:25AM0.12m | 11:06AM0.07m | 1:35AM0.11m | 12:14PM0.06m | 2:12AM0.10m | 1:04PM0.05m | 2:41AM0.09m | 1:45PM0.03m | 3:09AM0.08m | 2:20PM0.02m | 3:36AM0.07m | 2:53PM0.01m | 4:02AM0.06m | |||||||
 |  | | | | | | | |  |  | | | | | |  | |  | | |
 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:23 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | 1 | — |
Temp °C | 26 | 28 | 25 | 28 | 28 | 27 | 27 | 26 | 28 | 29 | 27 | 27 | 28 | 27 | 28 | 30 | 30 | 29 | 28 | 27 |
Feels °C | 22 | 25 | 20 | 22 | 24 | 26 | 26 | 28 | 27 | 26 | 25 | 26 | 28 | 30 | 29 | 28 | 30 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | S 7 | SW 7 | SW 6 | SW 7 | SSW 6 | WNW 4 | W 3 | — | — | — | SSE 5 | S 5 | S 5 | SSE 6 | SSE 6 | SW 4 | SW 6 | SW 6 | ESE 5 | SSW 7 |
| kJ | 23 | 36 | 10 | 12 | 4 | 4 | 1 | — | — | — | 3 | 2 | 5 | 21 | 15 | 3 | 2 | 1 | 64 | 41 |
Swell 2 Height (m) Direction Period (s) | SW 6 | — | — | — | — | SW 6 | SW 6 | — | — | — | — | — | — | SW 4 | SW 5 | SW 4 | SW 7 | — | — | — |
| kJ | 6 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 3 | 8 | 3 | 2 | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — | SW 6 | — | — | SW 4 | — | — | — |
| kJ | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | WNW 6 | WNW 5 | WNW 5 | WNW 4 | — | — | ESE 3 | — | SE 4 | ESE 5 | ESE 4 | SE 5 | ESE 4 | ESE 2 | SE 4 | ESE 4 | ESE 5 | SE 5 | WNW 7 |
| kJ | 56 | 148 | 69 | 40 | 21 | — | — | 1 | — | 12 | 24 | 33 | 49 | 3 | 1 | 20 | 44 | 69 | 114 | 600 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 388 | 160 | 142 | 290 | 51 | 475 | 802 | 625 | 927 | 893 | 153 | 125 | 168 | 153 | 562 | 562 | 654 | 195 | 195 | 17 |
Best forecast wave conditions in Cote d'Azur | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
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Information about the Cassis - Plage de l'Arène Surf forecast
The above surf forecast table for Cassis - Plage de l'Arène provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cassis - Plage de l'Arène can be found by selecting the local surf guide option on the grey menu. Our Cassis - Plage de l'Arène 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 (Cassis - Plage de l'Arène) 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 Cassis - Plage de l'Arène 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.
Cassis - Plage de l'Arène is 5 km (3 miles) from La Ciotat. If you plan a holiday in Cote d'Azur, look for hotels and other accommodation in La Ciotat. La Ciotat has rooms for a wide range of budgets as well as car hire and transport links.
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