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Weather & Climate in Saint-Brieuc, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Saint-Brieuc experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 43°F in January while summers reach 62°F in July / relatively mild seasonal variation. The area gets 227 sunny days per year, above the national average. Annual precipitation totals 35.0 inches. The area receives 1.8 inches of snow annually. The city sits at an elevation of 315 feet.
Temperature
43°F Jan (6°C)
62°F Jul (17°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 227 days/yr |
Geography
| Elevation | 315 ft (96 m) |
| Area | 8.5 sq mi (21.9 km²) |
| Population Density | 6,245/sq mi |
| Coordinates | 48.5151°N, 2.7684°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
193 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 | 118 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 92 km | 4 km |
| Apr 30, 1990 | 5 km SE of Saint Helier, Jersey | M4.2 | 88 km | 22 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 83 km | 10 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 81 km | 4 km |
| Jul 11, 2014 | 23 km W of Saint Helier, Jersey | M3.9 | 75 km | 12 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 85 km | 10 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 34 km | 10 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 116 km | 16 km |
| Apr 23, 2002 | 1 km ESE of Melgven, France | M3.8 | 103 km | 6 km |
| Feb 19, 2020 | 3 km ESE of Brest, France | M3.7 | 125 km | 10 km |
| Feb 25, 2015 | 30 km SW of Saint Helier, Jersey | M3.7 | 60 km | 2 km |
| Sep 28, 2017 | 1 km WNW of Tresbœuf, France | M3.6 | 114 km | 2 km |
| Aug 22, 1998 | 38 km SSE of Plobannalec-Lesconil, France | M3.6 | 145 km | 19 km |
| Apr 22, 1995 | 6 km E of Binic, France | M3.5 | 10 km | 10 km |
| Jul 26, 1993 | 5 km ESE of Villedieu-les-Poêles, France | M3.5 | 123 km | 31 km |
| May 14, 1994 | 0 km SE of Riec-sur-Belon, France | M3.5 | 103 km | 10 km |
| Dec 11, 2013 | 6 km WSW of Le Faou, France | M3.5 | 113 km | 2 km |
| May 3, 1999 | 1 km SE of Gouesnach, France | M3.5 | 120 km | 15 km |
| May 2, 1990 | 2 km SSE of Arzon, France | M3.4 | 110 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 4.0 in | Coldest |
| February | 44°F (7°C) | 3.2 in | |
| March | 47°F (8°C) | 3.0 in | |
| April | 49°F (10°C) | 2.4 in | |
| May | 55°F (13°C) | 2.4 in | |
| June | 59°F (15°C) | 2.0 in | |
| July | 62°F (17°C) | 1.7 in | Driest |
| August | 63°F (17°C) | 2.0 in | Warmest |
| September | 60°F (16°C) | 2.8 in | |
| October | 55°F (13°C) | 3.5 in | |
| November | 49°F (9°C) | 4.2 in | Wettest |
| December | 45°F (7°C) | 4.1 in |
Saint-Brieuc has a seasonal temperature swing of 20°F / from 43°F in January to 63°F in August. Total annual precipitation is 35.2 inches, with November being the wettest month (4.2") and July the driest (1.7").