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Weather & Climate in Seyssins, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Seyssins has a cool climate with an average annual temperature of 45°F (7°C). Winters average 28°F in January while summers reach 61°F in July. The area gets 291 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 58.3 inches (wetter than the 38-inch national average). The area receives 77.8 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 906 feet.
Temperature
28°F Jan (-2°C)
61°F Jul (16°C)
| Annual Average | 45.0°F |
| 17% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 291 days/yr |
Geography
| Elevation | 906 ft (276 m) |
| Area | 4.1 sq mi (10.7 km²) |
| Population Density | 1,798/sq mi |
| Coordinates | 45.1622°N, 5.6867°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
1,342 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Apr 7, 2014 | 7 km SE of Guillestre, France | M4.8 | 102 km | 8 km |
| Oct 31, 1997 | 12 km SE of Seyne-les-Alpes, France | M4.8 | 116 km | 10 km |
| Jan 20, 1994 | 1 km NE of Melle, Italy | M4.6 | 146 km | 10 km |
| Feb 11, 1991 | 5 km ESE of Briançon, France | M4.6 | 86 km | 14 km |
| Mar 2, 2012 | 8 km NNW of Jausiers, France | M4.5 | 110 km | 10 km |
| Jul 15, 1996 | 3 km NE of Chilly, France | M4.5 | 98 km | 5 km |
| Oct 3, 2012 | 2 km N of Melle, Italy | M4.5 | 144 km | 10 km |
| Dec 14, 1994 | 7 km SSE of Amancy, France | M4.5 | 108 km | 10 km |
| Mar 12, 2022 | 3 km S of Faverges, France | M4.5 | 77 km | 3 km |
| Jul 25, 2011 | 5 km NW of Cantalupa, Italy | M4.4 | 127 km | 25 km |
| Nov 21, 1995 | 1 km SW of Collegno, Italy | M4.4 | 147 km | 22 km |
| Jul 23, 1996 | 4 km W of Choisy, France | M4.4 | 96 km | 10 km |
| Jun 30, 2010 | 3 km NW of Saint-Martin-de-Belleville, France | M4.3 | 68 km | 2 km |
| Aug 3, 2011 | 4 km ESE of Barjac, France | M4.3 | 140 km | 4 km |
| Jan 20, 1994 | 1 km SW of Melle, Italy | M4.3 | 145 km | 10 km |
| Jan 11, 1999 | 2 km W of Saint-Paul-de-Varces, France | M4.2 | 11 km | 10 km |
| May 14, 2004 | 0 km SSE of Chiusa di San Michele, Italy | M4.2 | 129 km | 10 km |
| Jul 30, 2016 | 0 km SSW of Fleccia-Chianavasso, Italy | M4.2 | 122 km | 11 km |
| Feb 26, 2012 | 13 km ESE of Embrun, France | M4.2 | 103 km | 2 km |
| Jan 11, 2006 | 1 km S of Saint-Rambert-en-Bugey, France | M4.1 | 88 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 3.0 in | Coldest |
| February | 38°F (3°C) | 2.8 in | |
| March | 44°F (6°C) | 3.2 in | |
| April | 49°F (9°C) | 3.3 in | |
| May | 57°F (14°C) | 3.7 in | |
| June | 63°F (17°C) | 3.5 in | |
| July | 61°F (16°C) | 2.4 in | Driest |
| August | 67°F (20°C) | 2.8 in | Warmest |
| September | 61°F (16°C) | 3.9 in | |
| October | 52°F (11°C) | 4.1 in | |
| November | 42°F (6°C) | 4.2 in | Wettest |
| December | 37°F (3°C) | 3.2 in |
Seyssins has a seasonal temperature swing of 40°F / from 28°F in January to 67°F in August. Total annual precipitation is 40.1 inches, with November being the wettest month (4.2") and July the driest (2.4").