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Weather & Climate in Petit-Mars, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Petit-Mars enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 44°F in January while summers reach 66°F in July. The area gets 254 sunny days per year, above the national average. Annual precipitation totals 35.8 inches. The city sits at an elevation of 62 feet.
Temperature
44°F Jan (7°C)
66°F Jul (19°C)
| Annual Average | 56.2°F |
| 4% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 254 days/yr |
Geography
| Elevation | 62 ft (19 m) |
| Area | 10.0 sq mi (26.0 km²) |
| Population Density | 262/sq mi |
| Coordinates | 47.3944°N, 1.4549°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
340 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Jun 8, 2001 | France | M5.0 | 86 km | 12 km |
| Jun 16, 2023 | 5 km WNW of Mauzé-sur-le-Mignon, France | M4.8 | 142 km | 5 km |
| Mar 13, 1993 | 1 km WSW of Pénestin, France | M4.6 | 79 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 108 km | 4 km |
| Jun 22, 2005 | 2 km E of La Guérinière, France | M4.3 | 73 km | 10 km |
| Jan 12, 1997 | 2 km E of Sainte-Hermine, France | M4.3 | 99 km | 10 km |
| Jun 30, 2010 | 1 km ENE of Fontenay-le-Comte, France | M4.2 | 114 km | 3 km |
| May 2, 2016 | 6 km SE of L'Île-Bouchard, France | M4.2 | 150 km | 2 km |
| Dec 6, 1991 | 2 km S of Bourgueil, France | M4.2 | 124 km | 10 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 140 km | 10 km |
| Feb 14, 2003 | 5 km NE of Vix, France | M4.1 | 121 km | 10 km |
| Feb 12, 2018 | 3 km SSE of La Meilleraie-Tillay, France | M4.1 | 90 km | 5 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 135 km | 4 km |
| Mar 14, 2002 | 2 km WSW of Chantonnay, France | M4.1 | 85 km | 5 km |
| Jun 21, 2019 | 2 km WSW of Vihiers, France | M4.0 | 73 km | 8 km |
| Mar 6, 2013 | 0 km E of Ars-en-Ré, France | M3.9 | 132 km | 2 km |
| Jul 22, 2007 | 1 km SE of Les Lucs-sur-Boulogne, France | M3.9 | 63 km | 5 km |
| Jun 17, 2023 | 2 km WSW of Marans, France | M3.9 | 126 km | 5 km |
| Dec 12, 1993 | 5 km NNW of Argenton-les-Vallées, France | M3.8 | 84 km | 17 km |
| Apr 7, 2005 | 18 km WNW of Noirmoutier-en-l'Île, France | M3.8 | 88 km | 0 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 3.2 in | |
| February | 43°F (6°C) | 2.8 in | Coldest |
| March | 46°F (8°C) | 2.2 in | |
| April | 50°F (10°C) | 2.2 in | |
| May | 57°F (14°C) | 2.4 in | |
| June | 62°F (17°C) | 1.7 in | Driest |
| July | 66°F (19°C) | 1.7 in | Warmest |
| August | 66°F (19°C) | 1.9 in | |
| September | 61°F (16°C) | 2.5 in | |
| October | 54°F (12°C) | 3.0 in | |
| November | 47°F (8°C) | 3.4 in | Wettest |
| December | 43°F (6°C) | 3.3 in |
Petit-Mars has a seasonal temperature swing of 24°F / from 43°F in February to 66°F in July. Total annual precipitation is 30.3 inches, with November being the wettest month (3.4") and June the driest (1.7").