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Weather & Climate in Tréglamus, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tréglamus experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 43°F in January while summers reach 61°F in July / relatively mild seasonal variation. The area gets 214 sunny days per year. Annual precipitation totals 43.1 inches. The area receives 3.3 inches of snow annually. The city sits at an elevation of 699 feet.
Temperature
43°F Jan (6°C)
61°F Jul (16°C)
| Annual Average | 53.0°F |
| 2% below US avg | |
| January Average | 43°F (6°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 214 days/yr |
Geography
| Elevation | 699 ft (213 m) |
| Area | 22.1 sq mi (57.2 km²) |
| Population Density | 39/sq mi |
| Coordinates | 48.5569°N, 3.2748°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
182 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 | 134 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 102 km | 4 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 81 km | 10 km |
| Apr 30, 1990 | 5 km SE of Saint Helier, Jersey | M4.2 | 111 km | 22 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 81 km | 4 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 70 km | 10 km |
| Jul 11, 2014 | 23 km W of Saint Helier, Jersey | M3.9 | 91 km | 12 km |
| Apr 23, 2002 | 1 km ESE of Melgven, France | M3.8 | 83 km | 6 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 107 km | 16 km |
| Mar 28, 2002 | 36 km WSW of Le Palais, France | M3.8 | 148 km | 15 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 71 km | 10 km |
| Feb 25, 2015 | 30 km SW of Saint Helier, Jersey | M3.7 | 81 km | 2 km |
| Feb 19, 2020 | 3 km ESE of Brest, France | M3.7 | 89 km | 10 km |
| Sep 28, 2017 | 1 km WNW of Tresbœuf, France | M3.6 | 147 km | 2 km |
| Aug 22, 1998 | 38 km SSE of Plobannalec-Lesconil, France | M3.6 | 129 km | 19 km |
| Apr 22, 1995 | 6 km E of Binic, France | M3.5 | 40 km | 10 km |
| Dec 11, 2013 | 6 km WSW of Le Faou, France | M3.5 | 79 km | 2 km |
| May 14, 1994 | 0 km SE of Riec-sur-Belon, France | M3.5 | 87 km | 10 km |
| May 3, 1999 | 1 km SE of Gouesnach, France | M3.5 | 95 km | 15 km |
| Mar 21, 2003 | 10 km SE of Groix, France | M3.4 | 111 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 4.7 in | Coldest |
| February | 43°F (6°C) | 3.8 in | |
| March | 46°F (8°C) | 3.4 in | |
| April | 48°F (9°C) | 2.8 in | |
| May | 53°F (12°C) | 2.7 in | |
| June | 58°F (14°C) | 2.2 in | |
| July | 61°F (16°C) | 1.9 in | Driest |
| August | 62°F (17°C) | 2.2 in | Warmest |
| September | 59°F (15°C) | 3.1 in | |
| October | 54°F (12°C) | 3.9 in | |
| November | 48°F (9°C) | 4.7 in | Wettest |
| December | 44°F (7°C) | 4.7 in |
Tréglamus has a seasonal temperature swing of 19°F / from 43°F in January to 62°F in August. Total annual precipitation is 40.2 inches, with November being the wettest month (4.7") and July the driest (1.9").