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Weather & Climate in Saint-Arnoult-en-Yvelines, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Arnoult-en-Yvelines experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 42°F in January while summers reach 67°F in July. The area gets 231 sunny days per year, above the national average. Annual precipitation totals 32.8 inches. The area receives 2.1 inches of snow annually. The city sits at an elevation of 387 feet.
Temperature
42°F Jan (5°C)
67°F Jul (20°C)
| Annual Average | 54.6°F |
| 1% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 231 days/yr |
Geography
| Elevation | 387 ft (118 m) |
| Area | 4.9 sq mi (12.6 km²) |
| Population Density | 1,175/sq mi |
| Coordinates | 48.5711°N, 1.9395°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
18 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Jan 25, 1993 | 7 km SSE of Souesmes, France | M3.8 | 133 km | 18 km |
| Mar 6, 1999 | 2 km W of Vienne-en-Val, France | M3.3 | 87 km | 4 km |
| Aug 29, 1992 | 2 km ESE of Radon, France | M3.2 | 133 km | 10 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 134 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 89 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 126 km | 10 km |
| Dec 9, 1992 | 7 km NNE of Neuvy-le-Roi, France | M3.0 | 140 km | 10 km |
| Jan 20, 1992 | 9 km NNW of Château-Renault, France | M3.0 | 129 km | 10 km |
| Jun 7, 2008 | 3 km ENE of Cangey, France | M3.0 | 137 km | 3 km |
| Dec 24, 1997 | 8 km WSW of Savigny-en-Sancerre, France | M2.7 | 142 km | 5 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 120 km | 10 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 80 km | 5 km |
| Jan 26, 2000 | 3 km N of Neuvy-sur-Barangeon, France | M2.6 | 138 km | 12 km |
| May 8, 2004 | 4 km N of Nouzilly, France | M2.6 | 141 km | 2 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 79 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 36 km | 10 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 132 km | 10 km |
| Jan 12, 1996 | 2 km NW of Valframbert, France | M2.5 | 137 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 2.1 in | |
| February | 39°F (4°C) | 1.9 in | Coldest |
| March | 44°F (7°C) | 1.9 in | |
| April | 48°F (9°C) | 1.9 in | |
| May | 55°F (13°C) | 2.4 in | Wettest |
| June | 60°F (16°C) | 2.0 in | |
| July | 67°F (20°C) | 2.2 in | Warmest |
| August | 65°F (18°C) | 1.6 in | Driest |
| September | 59°F (15°C) | 2.1 in | |
| October | 52°F (11°C) | 2.3 in | |
| November | 44°F (6°C) | 2.1 in | |
| December | 40°F (4°C) | 2.3 in |
Saint-Arnoult-en-Yvelines has a seasonal temperature swing of 29°F / from 39°F in February to 67°F in July. Total annual precipitation is 24.8 inches, with May being the wettest month (2.4") and August the driest (1.6").