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Weather & Climate in Saint-Germain-en-Laye, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Germain-en-Laye experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 41°F in January while summers reach 66°F in July. The area gets 234 sunny days per year, above the national average. Annual precipitation totals 35.2 inches. The area receives 1.6 inches of snow annually. The city sits at an elevation of 322 feet.
Temperature
41°F Jan (5°C)
66°F Jul (19°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 234 days/yr |
Geography
| Elevation | 322 ft (98 m) |
| Area | 20.1 sq mi (51.9 km²) |
| Population Density | 2,052/sq mi |
| Coordinates | 48.8964°N, 2.0904°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.3.
| Mar 6, 1999 | 2 km W of Vienne-en-Val, France | M3.3 | 122 km | 4 km |
| Aug 29, 1992 | 2 km ESE of Radon, France | M3.2 | 150 km | 10 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 97 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 116 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 90 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 101 km | 10 km |
| Aug 11, 2002 | 3 km SSW of Rogerville, France | M2.6 | 149 km | 4 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 118 km | 5 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 116 km | 10 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 117 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 73 km | 10 km |
| Jun 22, 1999 | 5 km NNE of Oisemont, France | M2.5 | 125 km | 2 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.1 in | |
| February | 40°F (5°C) | 1.8 in | Coldest |
| March | 45°F (7°C) | 1.9 in | |
| April | 50°F (10°C) | 2.0 in | |
| May | 57°F (14°C) | 2.4 in | Wettest |
| June | 62°F (17°C) | 2.1 in | |
| July | 66°F (19°C) | 2.2 in | |
| August | 66°F (19°C) | 1.7 in | Warmest, Driest |
| September | 60°F (16°C) | 2.1 in | |
| October | 53°F (12°C) | 2.3 in | |
| November | 45°F (7°C) | 2.1 in | |
| December | 41°F (5°C) | 2.3 in |
Saint-Germain-en-Laye has a seasonal temperature swing of 26°F / from 40°F in February to 66°F in August. Total annual precipitation is 24.7 inches, with May being the wettest month (2.4") and August the driest (1.7").