Monthly climate in Nantes, France

Last updated: June 27, 2022

Under the Köppen–Geiger climate classification Nantes features a oceanic climate (Cfb). Temperatures typically range between 6 °C (43 °F) and 20 °C (69 °F) through the year, but rarely can drop to -8 °C (19 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 778 mm (30.6 inches) and receives 124 rainy days on the 1 mm (0.04 inches) threshold annually. Nantes enjoys an average of 3617 hours of sunshine throughout the year, and daylight varies from 8 hours 32 minutes to 15 hours 50 minutes per day.

Monthly average temperatures in Nantes, France §

The warmest months in Nantes are June, July and August, with daily mean temperatures ranging from 18 to 20 °C (65 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (43 - 46 °F) throughout the day. On average each year, Nantes experiences 40 days above 25 °C (77.0 °F) and 19 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Nantes, France. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 16°C
(61°F)
22°C
(71°F)
24°C
(76°F)
27°C
(80°F)
31°C
(88°F)
37°C
(98°F)
38°C
(100°F)
38°C
(100°F)
34°C
(93°F)
26°C
(79°F)
19°C
(66°F)
17°C
(62°F)
Mean maximum 14°C
(57°F)
16°C
(62°F)
21°C
(69°F)
25°C
(77°F)
27°C
(81°F)
31°C
(88°F)
34°C
(93°F)
33°C
(93°F)
30°C
(86°F)
23°C
(73°F)
18°C
(64°F)
15°C
(60°F)
Average high 9°C
(48°F)
11°C
(52°F)
13°C
(56°F)
17°C
(62°F)
20°C
(68°F)
23°C
(74°F)
25°C
(78°F)
25°C
(76°F)
22°C
(73°F)
18°C
(64°F)
12°C
(55°F)
10°C
(51°F)
Daily mean 6°C
(43°F)
7°C
(46°F)
9°C
(49°F)
12°C
(53°F)
15°C
(59°F)
18°C
(65°F)
20°C
(69°F)
19°C
(67°F)
17°C
(63°F)
13°C
(56°F)
9°C
(48°F)
8°C
(46°F)
Average low 3°C
(38°F)
4°C
(40°F)
5°C
(42°F)
7°C
(44°F)
10°C
(50°F)
14°C
(57°F)
15°C
(60°F)
15°C
(59°F)
12°C
(54°F)
10°C
(50°F)
6°C
(42°F)
5°C
(41°F)
Mean minimum -3°C
(27°F)
-2°C
(28°F)
-2°C
(29°F)
-0°C
(32°F)
4°C
(39°F)
8°C
(47°F)
11°C
(52°F)
9°C
(49°F)
7°C
(44°F)
3°C
(39°F)
-1°C
(30°F)
-2°C
(28°F)
Minimum -7°C
(20°F)
-6°C
(21°F)
-8°C
(19°F)
-3°C
(27°F)
1°C
(34°F)
6°C
(44°F)
9°C
(48°F)
8°C
(47°F)
5°C
(41°F)
2°C
(35°F)
-3°C
(26°F)
-3°C
(27°F)

Compare climate in Nantes with other places

Compare temperature, precipitation, sunshine, UV index in Nantes, France with other places around the world.

Monthly average precipitation in Nantes, France §

Nantes usually has the most precipitation in June, October and December, with an average of 12 rainy days and 91 mm (3.6 inches) of precipitation per month. The driest months in Nantes are July, August and September. On average, 41 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Nantes, France. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 50 (2.0) 66 (2.6) 71 (2.8) 51 (2.0) 64 (2.5) 84 (3.3) 36 (1.4) 42 (1.7) 45 (1.8) 83 (3.3) 79 (3.1) 107 (4.2)
Average precipitation days (≥ 1 mm) 9 13 13 8 11 11 7 7 8 11 11 15

Monthly sunshine hours in Nantes, France §

The sunniest months in Nantes are June, July and August, when the sun shines an average of 13 hours 10 minutes a day. Least sunny months in Nantes: January, February and December receive an average of 5 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Nantes, France. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 139 208 291 350 394 398 418 395 331 274 227 193
Mean daily daylight hours 8h 57m 10h 17m 11h 56m 13h 38m 15h 5m 15h 50m 15h 26m 14h 8m 12h 30m 10h 49m 9h 19m 8h 32m

Solar UV radiation in Nantes, France §

Nantes experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Nantes UV Index data.

Average daily maximum UV levels by month for Nantes, France. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 5 6 8 7 10 9 7 5 3 2