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Weather & Climate in Yffiniac, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yffiniac experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 45°F in January while summers reach 64°F in July / relatively mild seasonal variation. The area gets 239 sunny days per year, above the national average. Annual precipitation totals 34.8 inches. The area receives 1.9 inches of snow annually. The city sits at an elevation of 36 feet.
Temperature
45°F Jan (7°C)
64°F Jul (18°C)
| Annual Average | 54.8°F |
| 1% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 239 days/yr |
Geography
| Elevation | 36 ft (11 m) |
| Area | 6.7 sq mi (17.4 km²) |
| Population Density | 653/sq mi |
| Coordinates | 48.4848°N, 2.6776°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
206 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.6.
| Mar 13, 1993 | 1 km WSW of Pénestin, France | M4.6 | 113 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 89 km | 4 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 83 km | 10 km |
| Apr 30, 1990 | 5 km SE of Saint Helier, Jersey | M4.2 | 87 km | 22 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 80 km | 4 km |
| Jul 11, 2014 | 23 km W of Saint Helier, Jersey | M3.9 | 77 km | 12 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 87 km | 10 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 28 km | 10 km |
| Apr 23, 2002 | 1 km ESE of Melgven, France | M3.8 | 106 km | 6 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 117 km | 16 km |
| Feb 19, 2020 | 3 km ESE of Brest, France | M3.7 | 131 km | 10 km |
| Feb 25, 2015 | 30 km SW of Saint Helier, Jersey | M3.7 | 61 km | 2 km |
| Jun 24, 1995 | 1 km SE of Andouillé, France | M3.7 | 146 km | 5 km |
| Sep 28, 2017 | 1 km WNW of Tresbœuf, France | M3.6 | 106 km | 2 km |
| Aug 22, 1998 | 38 km SSE of Plobannalec-Lesconil, France | M3.6 | 147 km | 19 km |
| Jul 26, 1993 | 5 km ESE of Villedieu-les-Poêles, France | M3.5 | 118 km | 31 km |
| May 3, 1999 | 1 km SE of Gouesnach, France | M3.5 | 124 km | 15 km |
| Apr 22, 1995 | 6 km E of Binic, France | M3.5 | 14 km | 10 km |
| Dec 11, 2013 | 6 km WSW of Le Faou, France | M3.5 | 119 km | 2 km |
| May 14, 1994 | 0 km SE of Riec-sur-Belon, France | M3.5 | 105 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 4.2 in | |
| February | 43°F (6°C) | 3.4 in | Coldest |
| March | 46°F (8°C) | 3.1 in | |
| April | 48°F (9°C) | 2.6 in | |
| May | 54°F (12°C) | 2.6 in | |
| June | 59°F (15°C) | 2.1 in | |
| July | 64°F (18°C) | 1.9 in | Warmest, Driest |
| August | 63°F (17°C) | 2.1 in | |
| September | 59°F (15°C) | 2.9 in | |
| October | 54°F (12°C) | 3.7 in | |
| November | 48°F (9°C) | 4.5 in | Wettest |
| December | 44°F (6°C) | 4.3 in |
Yffiniac has a seasonal temperature swing of 21°F / from 43°F in February to 64°F in July. Total annual precipitation is 37.3 inches, with November being the wettest month (4.5") and July the driest (1.9").