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Weather & Climate in Rennes, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rennes experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 44°F in January while summers reach 65°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 37.3 inches. The area receives 1.2 inches of snow annually. The city sits at an elevation of 128 feet.
Temperature
44°F Jan (6°C)
65°F Jul (18°C)
| Annual Average | 55.4°F |
| 3% above US avg | |
| January Average | 44°F (6°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 251 days/yr |
Geography
| Elevation | 128 ft (39 m) |
| Area | 19.5 sq mi (50.4 km²) |
| Population Density | 11,708/sq mi |
| Coordinates | 48.1111°N, 1.6743°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
274 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Mar 13, 1993 | 1 km WSW of Pénestin, France | M4.6 | 94 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 98 km | 4 km |
| Jun 22, 2005 | 2 km E of La Guérinière, France | M4.3 | 133 km | 10 km |
| Apr 30, 1990 | 5 km SE of Saint Helier, Jersey | M4.2 | 119 km | 22 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 118 km | 10 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 113 km | 4 km |
| Jun 21, 2019 | 2 km WSW of Vihiers, France | M4.0 | 136 km | 8 km |
| Jul 22, 2007 | 1 km SE of Les Lucs-sur-Boulogne, France | M3.9 | 143 km | 5 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 139 km | 10 km |
| Jul 11, 2014 | 23 km W of Saint Helier, Jersey | M3.9 | 128 km | 12 km |
| Dec 12, 1993 | 5 km NNW of Argenton-les-Vallées, France | M3.8 | 150 km | 17 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 68 km | 10 km |
| Apr 7, 2005 | 18 km WNW of Noirmoutier-en-l'Île, France | M3.8 | 133 km | 0 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 150 km | 16 km |
| Feb 25, 2015 | 30 km SW of Saint Helier, Jersey | M3.7 | 112 km | 2 km |
| Nov 25, 1997 | 0 km ENE of Tiffauges, France | M3.7 | 130 km | 10 km |
| Jun 24, 1995 | 1 km SE of Andouillé, France | M3.7 | 68 km | 5 km |
| May 5, 2003 | 1 km N of Torfou, France | M3.7 | 125 km | 3 km |
| Sep 28, 1995 | 6 km N of Vihiers, France | M3.6 | 132 km | 13 km |
| Sep 17, 1996 | 3 km NW of Soullans, France | M3.6 | 144 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (6°C) | 2.8 in | |
| February | 43°F (6°C) | 2.3 in | Coldest |
| March | 47°F (8°C) | 2.2 in | |
| April | 50°F (10°C) | 2.2 in | |
| May | 56°F (14°C) | 2.6 in | |
| June | 61°F (16°C) | 1.8 in | |
| July | 65°F (18°C) | 1.8 in | Driest |
| August | 65°F (19°C) | 1.9 in | Warmest |
| September | 61°F (16°C) | 2.3 in | |
| October | 54°F (12°C) | 3.0 in | |
| November | 47°F (8°C) | 3.4 in | Wettest |
| December | 43°F (6°C) | 2.9 in |
Rennes has a seasonal temperature swing of 23°F / from 43°F in February to 65°F in August. Total annual precipitation is 29.1 inches, with November being the wettest month (3.4") and July the driest (1.8").