All Countries
Weather & Climate in Rosny-sous-Bois, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rosny-sous-Bois 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 226 sunny days per year, above the national average. Annual precipitation totals 39.4 inches. The area receives 1.3 inches of snow annually. The city sits at an elevation of 272 feet.
Temperature
42°F Jan (5°C)
67°F Jul (20°C)
| Annual Average | 54.5°F |
| 1% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 226 days/yr |
Geography
| Elevation | 272 ft (83 m) |
| Area | 2.3 sq mi (5.9 km²) |
| Population Density | 18,257/sq mi |
| Coordinates | 48.8702°N, 2.4991°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
11 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 | 123 km | 4 km |
| Oct 25, 1998 | 6 km NNE of Montdidier, France | M3.2 | 93 km | 7 km |
| Feb 22, 1999 | France | M3.1 | 140 km | 4 km |
| Jun 1, 2005 | 3 km N of Grandvilliers, France | M3.1 | 101 km | 10 km |
| Jan 5, 1994 | 0 km SSE of Saint-Martin-de-Boscherville, France | M2.7 | 128 km | 10 km |
| May 21, 2003 | France | M2.7 | 149 km | 3 km |
| Nov 3, 2000 | 5 km ESE of Ouzouer-le-Marché, France | M2.6 | 128 km | 5 km |
| Dec 13, 1992 | 1 km SW of La Mailleraye-sur-Seine, France | M2.5 | 143 km | 10 km |
| Jan 12, 1999 | 5 km ESE of Ouzouer-le-Marché, France | M2.5 | 127 km | 18 km |
| Jun 11, 1997 | 4 km NE of Voves, France | M2.5 | 88 km | 10 km |
| Jun 22, 1999 | 5 km NNE of Oisemont, France | M2.5 | 135 km | 2 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 | 41°F (5°C) | 1.8 in | Coldest |
| March | 46°F (8°C) | 1.9 in | |
| April | 50°F (10°C) | 2.0 in | |
| May | 58°F (14°C) | 2.5 in | Wettest |
| June | 63°F (17°C) | 2.2 in | |
| July | 67°F (20°C) | 2.3 in | Warmest |
| August | 67°F (19°C) | 1.7 in | Driest |
| September | 61°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) | 2.2 in |
Rosny-sous-Bois has a seasonal temperature swing of 26°F / from 41°F in February to 67°F in July. Total annual precipitation is 25.2 inches, with May being the wettest month (2.5") and August the driest (1.7").