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Weather & Climate in La Tranche-sur-Mer, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
La Tranche-sur-Mer enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 45°F in January while summers reach 67°F in July. The area gets 272 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 44.1 inches. The area receives 1.1 inches of snow annually. The city sits at an elevation of 23 feet.
Temperature
45°F Jan (7°C)
67°F Jul (20°C)
| Annual Average | 57.2°F |
| 6% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 272 days/yr |
Geography
| Elevation | 23 ft (7 m) |
| Area | 6.8 sq mi (17.6 km²) |
| Population Density | 392/sq mi |
| Coordinates | 46.3430°N, 1.4370°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
306 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.
| Apr 18, 2005 | 1 km SSW of Saint-Pierre-d'Oléron, France | M5.2 | 47 km | 10 km |
| Jun 8, 2001 | France | M5.0 | 52 km | 12 km |
| Jun 16, 2023 | 5 km WNW of Mauzé-sur-le-Mignon, France | M4.8 | 56 km | 5 km |
| Mar 13, 1993 | 1 km WSW of Pénestin, France | M4.6 | 149 km | 10 km |
| Mar 20, 2019 | 5 km NNE of Montendre, France | M4.5 | 139 km | 10 km |
| Jan 12, 1997 | 2 km E of Sainte-Hermine, France | M4.3 | 40 km | 10 km |
| Jun 22, 2005 | 2 km E of La Guérinière, France | M4.3 | 91 km | 10 km |
| Jun 30, 2010 | 1 km ENE of Fontenay-le-Comte, France | M4.2 | 52 km | 3 km |
| Sep 28, 2010 | 9 km W of Saint-Pierre-d'Oléron, France | M4.2 | 43 km | 2 km |
| Jun 25, 2001 | 10 km WSW of Saint-Pierre-d'Oléron, France | M4.2 | 50 km | 2 km |
| Apr 4, 2005 | 9 km WSW of Saint-Pierre-d'Oléron, France | M4.2 | 47 km | 10 km |
| Feb 12, 2018 | 3 km SSE of La Meilleraie-Tillay, France | M4.1 | 62 km | 5 km |
| Feb 14, 2003 | 5 km NE of Vix, France | M4.1 | 49 km | 10 km |
| Mar 14, 2002 | 2 km WSW of Chantonnay, France | M4.1 | 46 km | 5 km |
| Jun 21, 2019 | 2 km WSW of Vihiers, France | M4.0 | 111 km | 8 km |
| Jul 25, 2010 | 5 km ENE of Saint-Maurice-la-Clouère, France | M4.0 | 147 km | 2 km |
| Jun 17, 2023 | 2 km WSW of Marans, France | M3.9 | 32 km | 5 km |
| Jul 22, 2007 | 1 km SE of Les Lucs-sur-Boulogne, France | M3.9 | 54 km | 5 km |
| Apr 28, 2016 | 6 km WSW of Châtelaillon-Plage, France | M3.9 | 39 km | 10 km |
| Apr 5, 2001 | 2 km ENE of Melle, France | M3.9 | 103 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 3.2 in | |
| February | 44°F (7°C) | 2.8 in | Coldest |
| March | 48°F (9°C) | 2.1 in | |
| April | 52°F (11°C) | 2.2 in | |
| May | 58°F (15°C) | 2.2 in | |
| June | 63°F (17°C) | 1.5 in | |
| July | 67°F (20°C) | 1.5 in | Driest |
| August | 67°F (20°C) | 1.5 in | Warmest |
| September | 63°F (17°C) | 2.5 in | |
| October | 57°F (14°C) | 3.3 in | |
| November | 49°F (9°C) | 3.5 in | Wettest |
| December | 44°F (7°C) | 3.4 in |
La Tranche-sur-Mer has a seasonal temperature swing of 23°F / from 44°F in February to 67°F in August. Total annual precipitation is 29.7 inches, with November being the wettest month (3.5") and July the driest (1.5").