Water temperature in La Tranche-sur-Mer
Sea surface temperature · updated today, Thursday, October 29, at 4:59 am (CET)- Today
- 59.0–59.4 °F
- Air today
- 44 / 61 °F
- Wed 4
- 57.5 °F
- Wetsuit
- 4/3 mm
Today the water in La Tranche-sur-Mer is 59.2 °F and ranges 59.0–59.4 °F through the day, with the air between 44 °F and 61 °F. It cools over the next few days: about 57.5 °F by Wednesday 4.
Measured by satellite
This is the temperature satellites measured 2 days ago in the water just below the surface, at the nearest point of sea to La Tranche-sur-Mer (0.3 mi away), from NASA's MUR analysis, which sees the water in 1 km detail. It isn't a forecast: the big figure above is what a model gives for right now. On sunny afternoons the top of the water can be a little warmer.
Satellite: NASA MUR (JPL MUR MEaSUREs, PO.DAAC), doi:10.5067/GHGMR-4FJ04. Sources and licenses
The water over the next few days
- Today
- Fri 30
- Sat 31
- Sun 1
- Mon 2
- Tue 3
- Wed 4
- Thu 5
- Fri 6
- Sat 7
Water over the last 60 days
Over these days it has dropped 12.8 °F (from August 30).
Over the next few weeks the water looks a bit below normal (−1.2 °F), according to ECMWF 46-day.
Daily average and its range (low and high). The dotted line is the forecast.
Water temperature by month vs. normal
The water off La Tranche-sur-Mer is colder than normal for late October today (−1.0 °F).
- 50.2° 50°JanJ
- 49.0° 49°FebF
- 50.4° 50°MarM
- 53.8° 54°AprA
- 58.4° 58°MayM
- 63.3° 63°JunJ
- 66.4° 66°JulJ
- 67.5° 68°AugA
- 65.1° 65°SepS
- 62.1° 62°OctO
- 57.4° 57°NovN
- 52.9° 53°DecD
- Monthly normal
- Today
- Best time
The best time to swim in La Tranche-sur-Mer is from July to August, when the water averages 66.4–67.5 °F.
The water is warmest in August (67.5 °F on average) and coldest in February (49.0 °F).
Monthly averages for 1991–2020 (NOAA OISST, from satellites and buoys; nearest data point 4.0 mi away). Right by the shore, the water can be a little colder or warmer. Sources and licenses
Water and air, day by day
| Day | Water | Air | Max wave |
|---|---|---|---|
| Today | 59.0–59.4 °F | 44 / 61 °F | 6.4 ft |
| Fri 30 | 58.8–59.0 °F | 39 / 62 °F | 3.4 ft |
| Sat 31 | 58.5–58.6 °F | 41 / 57 °F | 3.9 ft |
| Sun 1 | 58.3–58.5 °F | 45 / 56 °F | 3.7 ft |
| Mon 2 | 57.9–58.1 °F | 46 / 58 °F | 3.0 ft |
| Tue 3 | 57.7–57.9 °F | 44 / 53 °F | 2.1 ft |
| Wed 4 | 57.4–57.6 °F | 42 / 50 °F | 2.6 ft |
Which wetsuit to wear
| Water | Wetsuit | How it feels |
|---|---|---|
| < 52 °F | 6/5 mm with hood, booties and gloves | Very cold: full kit only |
| 52°–57 °F | 5/4 mm with booties | Cold: takes your breath away |
| 57°–63 °F | 4/3 mm | Cool |
| 63°–66 °F | 3/2 mm | Mild |
| 66°–72 °F | Shorty (springsuit) | Pleasant |
| 72°–75 °F | Rash guard or top | Very pleasant |
| > 75 °F | No wetsuit | Warm |
A rough guide: it depends on the wind, how long you stay in and each person.
Fish are cold-blooded: the water sets their activity. Sudden temperature changes usually put them off the bite; with steady water, activity is more regular.
Previous days
The water over the last 60 days.
| Day | Water | Low / high |
|---|---|---|
| Wed 28 | 59.5 °F | 59.4–59.5 °F |
| Tue 27 | 59.5 °F | 59.5–59.7 °F |
| Mon 26 | 59.5 °F | 59.5–59.7 °F |
| Sun 25 | 59.7 °F | 59.7–59.9 °F |
| Sat 24 | 60.1 °F | 59.9–60.4 °F |
| Fri 23 | 60.8 °F | 60.4–61.3 °F |
| Thu 22 | 61.7 °F | 61.5–61.9 °F |
Show all 60 days
| Day | Water | Low / high |
|---|---|---|
| Wed 21 | 62.2 °F | 61.9–62.8 °F |
| Tue 20 | 63.0 °F | 62.8–63.0 °F |
| Mon 19 | 63.1 °F | 63.0–63.5 °F |
| Sun 18 | 64.0 °F | 63.7–64.8 °F |
| Sat 17 | 65.5 °F | 64.9–66.2 °F |
| Fri 16 | 66.4 °F | 66.2–66.6 °F |
| Thu 15 | 66.4 °F | 66.0–66.7 °F |
| Wed 14 | 66.2 °F | 66.0–66.6 °F |
| Tue 13 | 66.0 °F | 65.8–66.2 °F |
| Mon 12 | 65.8 °F | 65.7–65.8 °F |
| Sun 11 | 65.8 °F | 65.8–66.2 °F |
| Sat 10 | 66.4 °F | 66.2–66.6 °F |
| Fri 9 | 66.7 °F | 66.6–67.1 °F |
| Thu 8 | 67.6 °F | 67.1–68.5 °F |
| Wed 7 | 68.7 °F | 68.5–68.9 °F |
| Tue 6 | 68.2 °F | 67.8–68.7 °F |
| Mon 5 | 67.8 °F | 67.3–68.7 °F |
| Sun 4 | 67.5 °F | 67.1–67.8 °F |
| Sat 3 | 67.6 °F | 67.5–68.0 °F |
| Fri 2 | 68.4 °F | 68.2–68.9 °F |
| Thu 1 | 69.1 °F | 68.9–69.3 °F |
| Wed 30 | 69.4 °F | 69.1–69.8 °F |
| Tue 29 | 69.3 °F | 68.9–69.8 °F |
| Mon 28 | 68.7 °F | 68.4–69.6 °F |
| Sun 27 | 68.4 °F | 68.0–68.7 °F |
| Sat 26 | 68.4 °F | 68.0–68.7 °F |
| Fri 25 | 68.2 °F | 67.6–68.7 °F |
| Thu 24 | 67.6 °F | 66.9–68.7 °F |
| Wed 23 | 66.7 °F | 65.8–68.0 °F |
| Tue 22 | 66.9 °F | 66.4–68.0 °F |
| Mon 21 | 67.6 °F | 66.9–68.5 °F |
| Sun 20 | 67.5 °F | 66.9–68.2 °F |
| Sat 19 | 67.3 °F | 66.7–67.6 °F |
| Fri 18 | 67.5 °F | 67.3–67.6 °F |
| Thu 17 | 67.6 °F | 67.5–68.2 °F |
| Wed 16 | 68.7 °F | 68.2–70.0 °F |
| Tue 15 | 70.2 °F | 69.8–70.5 °F |
| Mon 14 | 70.2 °F | 69.4–71.1 °F |
| Sun 13 | 70.0 °F | 69.4–70.5 °F |
| Sat 12 | 70.2 °F | 69.6–70.5 °F |
| Fri 11 | 70.2 °F | 69.8–70.3 °F |
| Thu 10 | 70.2 °F | 70.0–70.3 °F |
| Wed 9 | 70.9 °F | 70.3–72.0 °F |
| Tue 8 | 72.1 °F | 72.0–72.5 °F |
| Mon 7 | 72.5 °F | 72.1–72.9 °F |
| Sun 6 | 72.3 °F | 71.2–73.4 °F |
| Sat 5 | 72.1 °F | 71.4–73.0 °F |
| Fri 4 | 72.0 °F | 71.6–72.3 °F |
| Thu 3 | 72.0 °F | 71.4–72.3 °F |
| Wed 2 | 71.8 °F | 71.4–72.1 °F |
| Tue 1 | 72.1 °F | 72.0–72.5 °F |
| Mon 31 | 72.1 °F | 72.0–72.3 °F |
| Sun 30 | 72.3 °F | 72.3–72.5 °F |
It's the daily analysis from Météo-France / Copernicus Marine (satellites, buoys and model), not a buoy reading at this spot.
Questions about the water in La Tranche-sur-MerQuestions
What's the water temperature today in La Tranche-sur-Mer?
59.2 °F; through the day it ranges 59.0–59.4 °F.
Will the water get warmer or colder?
It cools over the next few days: about 57.5 °F by Wednesday 4.
Which wetsuit do I need today?
With the water as it is today, 4/3 mm (cool). It's a rough guide: it depends on the wind and each person.
How warm is the water in La Tranche-sur-Mer in October?
In October, the water in La Tranche-sur-Mer averages 62.1 °F (1991–2020). For a long swim: 4/3 mm (cool).
How warm is the water in La Tranche-sur-Mer in August?
In August, the water in La Tranche-sur-Mer averages 67.5 °F (1991–2020), the warmest of the year. For a long swim: shorty (springsuit) (pleasant).
When is the best time to swim in La Tranche-sur-Mer?
The best time to swim in La Tranche-sur-Mer is from July to August, when the water averages 66.4–67.5 °F. The water is warmest in August (67.5 °F on average) and coldest in February (49.0 °F).
Is the water warmer or colder than normal?
The water off La Tranche-sur-Mer is colder than normal for late October today (−1.0 °F).
More about La Tranche-sur-Mer today
Water temperature near La Tranche-sur-Mer
- Longeville-sur-Mer 59.2 °F · 5.9 mi
- Saint-Martin-de-Ré 59.5 °F · 10 mi
- Charron 59.0 °F · 16 mi
- Château-d'Olonne 58.5 °F · 18 mi
- Saint-Denis-d'Oléron 59.9 °F · 22 mi
- Angoulins 59.5 °F · 23 mi
Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.
Learn more
Sea surface temperature: Open-Meteo with Météo-France / Copernicus Marine, CC BY 4.0; grid point 3.7 mi away. Near the shore, in coves and estuaries, the water can be a little colder or warmer.
Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:59 am (local time).
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