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Weather & Climate in Romilly-sur-Seine, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Romilly-sur-Seine experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 38°F in January while summers reach 66°F in July. The area gets 293 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 23.9 inches (drier than the 38-inch national average). The city sits at an elevation of 243 feet.
Temperature
38°F Jan (3°C)
66°F Jul (19°C)
| Annual Average | 51.1°F |
| 5% below US avg | |
| January Average | 38°F (3°C) |
| July Average | 66°F (19°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 243 ft (74 m) |
| Area | 9.8 sq mi (25.3 km²) |
| Population Density | 1,489/sq mi |
| Coordinates | 48.5109°N, 3.7263°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
15 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 | 144 km | 4 km |
| Oct 16, 1992 | 9 km SW of Saint-Dizier, France | M2.9 | 84 km | 10 km |
| Sep 13, 1997 | 9 km NNE of Saulieu, France | M2.8 | 133 km | 5 km |
| Aug 19, 1990 | 14 km S of Liffol-le-Grand, France | M2.8 | 144 km | 10 km |
| Dec 24, 1997 | 8 km WSW of Savigny-en-Sancerre, France | M2.7 | 145 km | 5 km |
| Aug 14, 1998 | 14 km NNW of Clamecy, France | M2.7 | 107 km | 2 km |
| May 21, 2003 | France | M2.7 | 87 km | 3 km |
| May 13, 2005 | 7 km WSW of Vermenton, France | M2.7 | 97 km | 4 km |
| Jul 11, 2003 | 3 km E of Tanlay, France | M2.6 | 79 km | 8 km |
| Apr 19, 1994 | 6 km SSE of Clamecy, France | M2.5 | 123 km | 10 km |
| Dec 21, 1996 | 11 km ESE of Chablis, France | M2.5 | 85 km | 10 km |
| Jul 22, 2005 | France | M2.5 | 138 km | 10 km |
| Jun 28, 2005 | 6 km SSE of Liffol-le-Grand, France | M2.5 | 141 km | 10 km |
| Jun 28, 2002 | 6 km S of Neufchâteau, France | M2.5 | 146 km | 1 km |
| Jul 23, 2002 | 7 km S of Neufchâteau, France | M2.5 | 147 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 38°F (3°C) | 2.2 in | Coldest |
| February | 39°F (4°C) | 1.7 in | |
| March | 44°F (7°C) | 1.3 in | Driest |
| April | 49°F (9°C) | 1.6 in | |
| May | 56°F (14°C) | 2.1 in | |
| June | 62°F (17°C) | 2.1 in | |
| July | 66°F (19°C) | 2.3 in | Warmest |
| August | 65°F (19°C) | 2.4 in | Wettest |
| September | 59°F (15°C) | 2.4 in | |
| October | 52°F (11°C) | 2.0 in | |
| November | 44°F (6°C) | 2.0 in | |
| December | 39°F (4°C) | 1.9 in |
Romilly-sur-Seine has a seasonal temperature swing of 29°F / from 38°F in January to 66°F in July. Total annual precipitation is 23.9 inches, with August being the wettest month (2.4") and March the driest (1.3").