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Weather & Climate in Châteaulin, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Châteaulin experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 45°F in January while summers reach 63°F in July / relatively mild seasonal variation. The area gets 239 sunny days per year, above the national average. Annual precipitation totals 57.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 43 feet.
Temperature
45°F Jan (7°C)
63°F Jul (17°C)
| Annual Average | 55.0°F |
| 2% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 63°F (17°C) |
| Sunny Days | 239 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 8.0 sq mi (20.8 km²) |
| Population Density | 670/sq mi |
| Coordinates | 48.1952°N, 4.0937°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
152 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 | 144 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 110 km | 4 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 77 km | 10 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 82 km | 4 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 51 km | 10 km |
| Apr 23, 2002 | 1 km ESE of Melgven, France | M3.8 | 39 km | 6 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 138 km | 10 km |
| Mar 28, 2002 | 36 km WSW of Le Palais, France | M3.8 | 111 km | 15 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 77 km | 16 km |
| Feb 19, 2020 | 3 km ESE of Brest, France | M3.7 | 33 km | 10 km |
| Aug 22, 1998 | 38 km SSE of Plobannalec-Lesconil, France | M3.6 | 78 km | 19 km |
| May 3, 1999 | 1 km SE of Gouesnach, France | M3.5 | 33 km | 15 km |
| Aug 24, 1996 | 59 km SSW of Guilvinec, France | M3.5 | 106 km | 10 km |
| May 14, 1994 | 0 km SE of Riec-sur-Belon, France | M3.5 | 51 km | 10 km |
| Dec 11, 2013 | 6 km WSW of Le Faou, France | M3.5 | 14 km | 2 km |
| Apr 22, 1995 | 6 km E of Binic, France | M3.5 | 110 km | 10 km |
| Sep 17, 1994 | 33 km NE of Plouézec, France | M3.4 | 136 km | 10 km |
| Feb 9, 2005 | 2 km N of Plouay, France | M3.4 | 63 km | 10 km |
| May 7, 2000 | 65 km S of Guilvinec, France | M3.4 | 109 km | 14 km |
| Mar 21, 2003 | 10 km SE of Groix, France | M3.4 | 88 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 5.2 in | Wettest |
| February | 44°F (6°C) | 4.2 in | Coldest |
| March | 46°F (8°C) | 3.7 in | |
| April | 49°F (9°C) | 2.8 in | |
| May | 54°F (12°C) | 2.9 in | |
| June | 59°F (15°C) | 2.2 in | |
| July | 63°F (17°C) | 1.9 in | Warmest, Driest |
| August | 63°F (17°C) | 2.4 in | |
| September | 59°F (15°C) | 3.3 in | |
| October | 54°F (12°C) | 4.0 in | |
| November | 48°F (9°C) | 5.2 in | |
| December | 45°F (7°C) | 5.2 in |
Châteaulin has a seasonal temperature swing of 19°F / from 44°F in February to 63°F in July. Total annual precipitation is 42.8 inches, with January being the wettest month (5.2") and July the driest (1.9").