Surf Forecasts:
Tanchet surf forecast from 2 Sep 2026:
- Best quality surf: Saturday 5 Sep, 2PM (local time) - 3ft (0.9m), 11s period, WNW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 8PM (local time) - 3.5ft (1.1m), 13s period, W swell with 398 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 11PM (local time) - 2.5ft (0.7m), 8s period with W swell.
Best Forecast Surf Conditions for Tanchet this week:
The surf forecast for Tanchet over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 11PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tanchet in the next 16 days are 1.1m 13s and forecast to arrive on Monday (Sep 07) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Sep 06) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 3rd Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 2PM (Sat 5th Sep) | 3ft (0.9m) 11s |
| Most Powerful | 8PM (Mon 7th Sep) | 3.5ft (1.1m) 13s |
Table - best surf conditions forecast for Tanchet over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s talk surf. Looking at the whole sixteen-day window, it’s a pretty quiet stretch for Tanchet. We’ve got a lot of small, weak swell and choppy conditions to wade through, so patience is the name of the game. The few moments where things clean up are fleeting, but there’s one morning that might just be worth the drive.
Water temperature is sitting at 69°, which is bang on average for this time of year, so no surprises there.
We kick off Wednesday the 2nd through to Friday the 4th with nothing to get excited about—waves are only 2 ft to 2 ft, weak energy (35 to 74), and mostly cross or cross-onshore winds. It’s pretty flat and messy. Saturday morning the 5th sees a little bump– 3 ft from the WNW, period 9 seconds, with a gentle offshore NNE breeze at 9 mph. Energy jumps to 183 (moderate), and it cleans right up. It’s surfable, but just barely ordinary. Still, if you’re desperate, that’s your window. The afternoon gets choppy again.
Sunday the 6th through to Wednesday the 10th is a mixed bag. Sunday morning is clean but tiny at 2 ft. Monday the 7th sees a long-period 15-second swell roll in at 2 ft, moderate energy (263), but it’s cross-shore and choppy—not great shape for a reef break. Tuesday morning the 8th is your standout moment: 4 ft from the W, 11-second period, a gentle cross-offshore NNW breeze at 9 mph, and clean conditions. Energy is solid at 296 (moderate). This is the best of the run—clean, with enough push for a fun session. Just know that crowds are possible here.
We then hit a rough patch from the 9th through the 16th. Waves bounce between 0.7 ft and 5 ft, but winds are mostly cross or onshore, and energy drops off. Wednesday the 9th afternoon sees a 4 ft swell but with a fresh 22 mph cross wind—lumpy and tough. The 12th afternoon throws up a 5 ft swell from the WSW with a short 6-second period and strong cross-wind—choppy and hard to surf, better left alone.
There’s a long gap from the 12th afternoon until the morning of the 17th where there’s nothing worth paddling out for. Most mornings are clean but tiny, and that one bigger push on the 12th is a mess.
Now for a late bright spot: Thursday morning the 17th. We get 3 ft from the W, 11-second period, with a gentle offshore NE breeze at 9 mph. Energy is 194 (moderate) and it’s clean. It’s not big, but it’ll be fun and lined up. A decent way to close out the period.
So, bottom line: Tuesday morning the 8th is the clear winner—clean, moderate energy, offshore flow. Thursday the 17th is a worthy second pick for those who can wait. Everything else is small, weak, or windy. Hang in there.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 17°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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) | W 8 | W 8 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | W 9 | W 8 | WNW 9 | WNW 11 | WNW 12 | W 11 | W 10 | W 9 | W 15 | W 13 | W 12 | W 11 | W 10 | WNW 9 |
Wave Graph | |||||||||||||||||||||
34 | 33 | 19 | 58 | 57 | 63 | 64 | 73 | 71 | 116 | 156 | 145 | 83 | 48 | 42 | 215 | 356 | 273 | 279 | 198 | 141 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | on | cross-on | cross-off | cross | cross | cross-off | off | cross | off | cross-off | cross-on | cross-off | cross | cross-on | cross-off | cross-off | cross | cross |
High Tide | 8:06AM3.98m | 8:26PM3.93m | 8:47AM3.75m | 9:14PM3.60m | 9:41AM3.48m | 10:26PM3.26m | 11:18AM3.24m | 00:48AM3.12m | 1:33PM3.33m | 2:26AM3.33m | 2:51PM3.65m | 3:29AM3.65m | 3:47PM4.03m | 4:17AM3.95m | |||||||
Low Tide | 2:42PM0.41m | 3:06AM0.58m | 3:32PM0.69m | 3:59AM0.89m | 4:33PM0.97m | 5:06AM1.16m | 5:49PM1.14m | 6:27AM1.27m | 7:16PM1.09m | 7:49AM1.12m | 8:33PM0.81m | 8:57AM0.80m | 9:33PM0.45m | ||||||||
7:26 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | |
— | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 19 | 20 | 20 | 21 | 23 | 20 | 19 | 25 | 27 | 24 | 28 | 27 | 24 | 23 | 19 | 16 | 18 | 17 |
Feels °C | 16 | 17 | 16 | 19 | 20 | 20 | 21 | 21 | 19 | 18 | 22 | 24 | 20 | 26 | 24 | 23 | 21 | 17 | 14 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | W 9 | W 8 | WNW 9 | WNW 11 | WNW 12 | W 11 | W 10 | W 9 | W 15 | W 13 | W 12 | W 11 | W 10 | WNW 9 |
34 | 33 | 19 | 58 | 57 | 63 | 64 | 73 | 71 | 116 | 156 | 145 | 83 | 48 | 42 | 215 | 356 | 273 | 279 | 198 | 141 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 14 | W 12 | — | — | — | — | W 18 | WNW 9 | W 8 | — | WNW 5 | — | — |
— | — | — | — | — | — | — | — | 4 | 67 | — | — | — | — | 6 | 25 | 34 | — | 17 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | NW 9 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 25 | 20 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 2 | NW 3 | WNW 3 | — | — | — | — | NW 2 | NW 4 | NE 3 | NNW 2 | ENE 3 | ESE 4 | — | NW 2 | WNW 3 | WNW 4 | WNW 5 | — | — | — |
1 | 2 | 2 | — | — | — | — | 1 | 12 | 1 | 1 | 4 | 5 | — | 1 | 3 | 17 | 42 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 247 | 247 | 237 | 3 | 0 | 3 | 11 | 0 | 0 | 11 | 0 | 14 | 11 | 0 | 11 | 57 | 0 | 0 | 237 | 3 |
Best forecast wave conditions in Vendee | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
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Information about the Tanchet Surf forecast
The above surf forecast table for Tanchet provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tanchet can be found by selecting the local surf guide option on the grey menu. Our Tanchet 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 (Tanchet) 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 Tanchet 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.
Tanchet is 3 km (2 miles) from the city of Les Sables-d'Olonne. If you plan a holiday in Vendee, look for hotels and other accommodation in Les Sables-d'Olonne. Les Sables-d'Olonne has rooms for a wide range of budgets as well as car hire and transport links.











