La Tranche sur Mer Surf Break

Lat Long: 46.34° N 1.47° W

La Tranche sur Mer Surf Forecast and Surf Report

Issued: 1 pm 25 Jul 2026 (local time)

Forecast update in  hr  min

Today's La Tranche sur Mer sea temperature is
21.0° C
0.7° 

La Tranche sur Mer surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


La Tranche sur Mer surf forecast from 25 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 2AM (local time) - 5.5ft (1.7m), 7s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 26 Jul, 2AM (local time) - 5.5ft (1.7m), 7s period, WNW swell with 277 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 2AM (local time) - 5.5ft (1.7m), 7s period with WNW swell.

Best Forecast Surf Conditions for La Tranche sur Mer this week:

The surf forecast for La Tranche sur Mer over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 26) at 2AM. The primary swell is predicted to be 1.7m and 7s period with a secondary swell of 1.2m and 7s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at La Tranche sur Mer in the next 16 days are 1.7m 7s and forecast to arrive on Sunday (Jul 26) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Monday (Jul 27) at 2AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sun 26th Jul)5.5ft (1.7m) 7s
Best Surf 2AM (Sun 26th Jul)5.5ft (1.7m) 7s
Most Powerful 2AM (Sun 26th Jul)5.5ft (1.7m) 7s

Table - best surf conditions forecast for La Tranche sur Mer over the next 16 days.


The Lowdown

Alright, Rusty here. Let me lay out what's coming for La Tranche sur Mer in terms a surfer understands. This is a quiet spell overall, with no big standout sessions, but there are a few moments when you can get out, especially if you're learning or just want to dip a toe.

Water temp is about 70°, which is just a touch warmer than usual, so nothing wild.

For the next few days, it's mostly small and unappealing. Saturday the 25th has nearly no swell, just 0.3ft from the southwest, and a strong 28 mph west-northwest wind blowing straight offshore. That's a recipe for a choppy, hard-to-paddle mess. Skip it.

Sunday the 26th stays tiny, 3ft from the west, with a moderate cross-off breeze. It's clean but there's almost no energy in the water—just 49 units. Not worth rushing.

Monday the 27th morning is a little better: 2ft from the west, 9-second period, and a light offshore from the north-northwest. Clean conditions and 86 units of energy. For a beginner on a longboard, that's the best of a quiet spell. The afternoon picks up to 3ft from the west-northwest, still moderate wind, 244 units of energy—moderate wave energy. Still, it's only just surfable.

Then we hit a real dry spell. From Tuesday the 28th through Friday the 1st of August, it's tiny waves, 1ft to 2ft, with a mix of onshore and cross-off winds. That's a solid 5-day gap where the surf is pretty much dead.

Sunday the 2nd of August has a slight bump: 3ft from the west, 9-second period, moderate cross-off, but only 99 units of energy. Weak. Monday the 3rd brings the best of this outlook: 3ft from the west-northwest in the afternoon, 10-second period, and a moderate offshore from the west-northwest. That gives 197 units (moderate energy) and clean conditions. For La Tranche sur Mer, that's the high point.

Tuesday the 4th and Wednesday the 5th stay small. Wednesday morning the 5th is glassy with a slight air, 2ft from the west, but a short 6-second period—so the waves will be weak and crumbly. Still, if you're keen, it might be worth a dawn session.

Later on, around August 9th, we see more energy: 3ft from the west, 8-second period in the morning, with 131 units and clean cross-off wind. The afternoon has 3ft from the west-southwest (the optimum direction for this break), fresh offshore wind, and 133 units. That's decent, clean, and lined up. It's not big, but the conditions are good.

Because the breaks here are fairly consistent overall, these quiet runs are normal for the area, and forecasts can shift. The standout moments are the afternoon of August 3rd with 3ft west-northwest swell and clean offshore wind, and the afternoon of August 9th with 3ft west-southwest, also clean and offshore. Both are suitable for beginners due to the small size, but expect crowds sometimes at this spot.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Tue morning, min 14°C on Mon morning). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the NNW by Mon morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 32°C on Tue afternoon, min 20°C on Wed night). Wind will be generally light.

Sat
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
!
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SW
6
1.7
WNW
7
0.8
W
6
1
W
5
0.1
W
9
0.7
W
9
0.9
WNW
9
0.5
W
10
0.5
W
10
0.4
W
10
0.3
W
9
0.3
W
9
0.3
W
9
0.3
W
9
0.3
W
10
0.6
W
10
0.4
WNW
4
0.3
W
8
0.3
W
8
0.2
WNW
7
Wave Graph
Metric surfscale
Energy kJ
1
277
47
0
2
81
138
45
50
30
15
15
14
14
17
68
7
12
12
5
Wind (km/h)
45
WNW
15
NNW
25
W
25
WSW
25
NW
10
NNW
25
W
20
NNE
15
E
20
WSW
10
NW
15
SE
20
SW
15
NW
10
W
20
W
15
NNW
15
SSW
20
WSW
15
WSW
Wind State
off
off
cross-off
cross-off
off
off
cross-off
cross-off
cross-on
cross-off
off
on
cross
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
High Tide
3:30PM3.41m
3:58AM3.38m
4:14PM3.59m
4:38AM3.54m
4:51PM3.78m
5:13AM3.69m
5:24PM3.96m
5:42AM3.82m
5:52PM4.11m
6:08AM3.92m
6:17PM4.22m
6:32AM3.98m
6:41PM4.28m
Low Tide
8:55PM1.28m
9:18AM1.24m
9:50PM1.07m
10:08AM1.01m
10:36PM0.82m
10:52AM0.77m
11:18PM0.59m
11:31AM0.55m
11:56PM0.39m
12:09PM0.37m
00:33AM0.25m
12:45PM0.26m
1:09AM0.17m
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
6:41
6:41
6:43
6:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:45
9:44
9:43
9:42
9:40
9:38
9:37
 mm
Temp °C
26
21
20
20
21
17
22
23
27
32
30
30
30
25
22
26
26
24
22
22
Feels °C
22
15
17
17
19
16
19
19
23
27
25
26
27
23
22
23
22
23
22
21
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the La Tranche sur Mer Surf forecast

The above surf forecast table for La Tranche sur Mer provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at La Tranche sur Mer can be found by selecting the local surf guide option on the grey menu. Our La Tranche sur Mer 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 (La Tranche sur Mer) 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 La Tranche sur Mer 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 Vendee? If you are looking for accommodation near La Tranche sur Mer, camping, hotels and holiday cottages in Vendee, consider staying in La Pallice which is 29 km (18 miles) away. Other places in and around Vendee where you can find information about places to rent, and car hire include Les Sables-d'Olonne which is 30 km (19 miles) away, La Rochelle, La Roche-sur-Yon and Marans.

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