Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Mery-sur-Seine features a oceanic climate (Cfb). Temperatures typically range between 4 °C (39 °F) and 21 °C (70 °F) through the year, but rarely can drop to -11 °C (13 °F) or can rise to as high as 42 °C (107 °F). The average annual precipitation amounts to about 782 mm (30.8 inches) and receives 125 rainy days on the 1 mm (0.04 inches) threshold annually. Mery-sur-Seine enjoys an average of 3463 hours of sunshine throughout the year, and daylight varies from 8 hours 22 minutes to 16 hours 1 minutes per day.
The warmest months in Mery-sur-Seine are June, July and August, with daily mean temperatures ranging from 19 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 43 °F) throughout the day. On average each year, Mery-sur-Seine experiences 54 days above 25 °C (77.0 °F) and 35 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 15°C (59°F) |
20°C (69°F) |
24°C (76°F) |
28°C (83°F) |
33°C (91°F) |
36°C (97°F) |
42°C (107°F) |
38°C (101°F) |
34°C (94°F) |
27°C (80°F) |
21°C (71°F) |
17°C (63°F) |
| Mean maximum | 13°C (56°F) |
17°C (62°F) |
21°C (70°F) |
25°C (77°F) |
28°C (83°F) |
32°C (89°F) |
35°C (94°F) |
35°C (95°F) |
31°C (88°F) |
25°C (77°F) |
19°C (66°F) |
15°C (59°F) |
| Average high | 7°C (44°F) |
10°C (50°F) |
13°C (55°F) |
17°C (62°F) |
20°C (68°F) |
25°C (77°F) |
26°C (80°F) |
26°C (79°F) |
23°C (73°F) |
17°C (63°F) |
11°C (52°F) |
8°C (47°F) |
| Daily mean | 4°C (39°F) |
6°C (43°F) |
8°C (47°F) |
11°C (52°F) |
15°C (59°F) |
19°C (67°F) |
21°C (70°F) |
21°C (69°F) |
17°C (63°F) |
13°C (55°F) |
7°C (45°F) |
6°C (43°F) |
| Average low | 1°C (35°F) |
3°C (37°F) |
4°C (39°F) |
5°C (42°F) |
9°C (49°F) |
14°C (57°F) |
15°C (60°F) |
15°C (59°F) |
12°C (53°F) |
9°C (48°F) |
4°C (40°F) |
3°C (38°F) |
| Mean minimum | -4°C (24°F) |
-4°C (24°F) |
-3°C (27°F) |
-1°C (30°F) |
3°C (37°F) |
8°C (47°F) |
11°C (52°F) |
10°C (49°F) |
6°C (44°F) |
2°C (36°F) |
-2°C (28°F) |
-4°C (25°F) |
| Minimum | -8°C (17°F) |
-8°C (18°F) |
-11°C (13°F) |
-4°C (26°F) |
1°C (34°F) |
7°C (45°F) |
8°C (47°F) |
7°C (45°F) |
4°C (40°F) |
1°C (34°F) |
-4°C (26°F) |
-4°C (24°F) |
Compare temperature, precipitation, sunshine, UV index in Mery-sur-Seine, Grand Est, France with other places around the world.
Mery-sur-Seine usually has the most precipitation in January, October and December, with an average of 13 rainy days and 87 mm (3.4 inches) of precipitation per month. The driest months in Mery-sur-Seine are April, August and September. On average, 43 mm (1.7 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 77 (3.0) | 66 (2.6) | 69 (2.7) | 32 (1.3) | 69 (2.7) | 66 (2.6) | 52 (2.0) | 48 (1.9) | 51 (2.0) | 76 (3.0) | 69 (2.7) | 109 (4.3) |
| Average precipitation days (≥ 1 mm) | 12 | 11 | 13 | 6 | 11 | 9 | 8 | 8 | 7 | 11 | 12 | 17 |
The sunniest months in Mery-sur-Seine are May, June and July, when the sun shines an average of 13 hours 7 minutes a day. Least sunny months in Mery-sur-Seine: January, November and December receive an average of 5 hours 1 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 119 | 203 | 261 | 352 | 389 | 407 | 410 | 388 | 327 | 259 | 195 | 147 |
| Mean daily daylight hours | 8h 48m | 10h 11m | 11h 55m | 13h 42m | 15h 14m | 16h 1m | 15h 36m | 14h 14m | 12h 31m | 10h 46m | 9h 11m | 8h 22m |
Mery-sur-Seine experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Mery-sur-Seine UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 2 | 3 | 5 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 1 |
Discover in-depth weather details for every month in Mery-sur-Seine. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Mery-sur-Seine's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.