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Weather & Climate in Piriac-sur-Mer, France
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Piriac-sur-Mer enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 46°F in January while summers reach 65°F in July / relatively mild seasonal variation. The area gets 258 sunny days per year, above the national average. Annual precipitation totals 49.1 inches (wetter than the 38-inch national average). The city sits at an elevation of 20 feet.
Temperature
46°F Jan (8°C)
65°F Jul (18°C)
| Annual Average | 56.5°F |
| 5% above US avg | |
| January Average | 46°F (8°C) |
| July Average | 65°F (18°C) |
| Sunny Days | 258 days/yr |
Geography
| Elevation | 20 ft (6 m) |
| Area | 4.8 sq mi (12.4 km²) |
| Population Density | 428/sq mi |
| Coordinates | 47.3794°N, 2.5465°W |
| Timezone | Europe/Paris |
Precipitation & Snow
Air Quality
Earthquake History
304 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.0.
| Jun 8, 2001 | France | M5.0 | 141 km | 12 km |
| Mar 13, 1993 | 1 km WSW of Pénestin, France | M4.6 | 11 km | 10 km |
| Nov 21, 2013 | 1 km WSW of Plescop, France | M4.5 | 41 km | 4 km |
| Jun 22, 2005 | 2 km E of La Guérinière, France | M4.3 | 53 km | 10 km |
| Jan 12, 1997 | 2 km E of Sainte-Hermine, France | M4.3 | 148 km | 10 km |
| Sep 30, 2002 | 3 km W of Languidic, France | M4.2 | 71 km | 10 km |
| Sep 30, 2002 | 1 km E of Languidic, France | M4.1 | 67 km | 4 km |
| Mar 14, 2002 | 2 km WSW of Chantonnay, France | M4.1 | 136 km | 5 km |
| Oct 11, 1995 | 1 km SSE of Querrien, France | M3.9 | 97 km | 10 km |
| Jul 22, 2007 | 1 km SE of Les Lucs-sur-Boulogne, France | M3.9 | 101 km | 5 km |
| Apr 23, 2002 | 1 km ESE of Melgven, France | M3.8 | 111 km | 6 km |
| Jul 18, 2004 | 6 km WSW of Groix, France | M3.8 | 79 km | 16 km |
| Jul 11, 2002 | 3 km NW of Pluduno, France | M3.8 | 131 km | 10 km |
| Mar 28, 2002 | 36 km WSW of Le Palais, France | M3.8 | 82 km | 15 km |
| Apr 7, 2005 | 18 km WNW of Noirmoutier-en-l'Île, France | M3.8 | 36 km | 0 km |
| May 5, 2003 | 1 km N of Torfou, France | M3.7 | 114 km | 3 km |
| Feb 5, 1991 | 36 km W of Ars-en-Ré, France | M3.7 | 139 km | 10 km |
| Nov 25, 1997 | 0 km ENE of Tiffauges, France | M3.7 | 117 km | 10 km |
| Sep 28, 2017 | 1 km WNW of Tresbœuf, France | M3.6 | 93 km | 2 km |
| Aug 22, 1998 | 38 km SSE of Plobannalec-Lesconil, France | M3.6 | 110 km | 19 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 46°F (8°C) | 3.7 in | |
| February | 46°F (8°C) | 3.0 in | Coldest |
| March | 48°F (9°C) | 2.4 in | |
| April | 51°F (11°C) | 2.2 in | |
| May | 57°F (14°C) | 2.3 in | |
| June | 61°F (16°C) | 1.7 in | |
| July | 65°F (18°C) | 1.5 in | Driest |
| August | 66°F (19°C) | 1.7 in | Warmest |
| September | 62°F (17°C) | 2.5 in | |
| October | 57°F (14°C) | 3.2 in | |
| November | 51°F (10°C) | 3.9 in | Wettest |
| December | 47°F (9°C) | 3.7 in |
Piriac-sur-Mer has a seasonal temperature swing of 20°F / from 46°F in February to 66°F in August. Total annual precipitation is 31.9 inches, with November being the wettest month (3.9") and July the driest (1.5").