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Nantes, France Weather Averages

July is the hottest month in Nantes with an average temperature of 20°C (67°F) and the coldest is January at 6°C (42°F). The wettest month is January with an average of 100mm of rain. The best month to swim in the sea is in August when the average sea temperature is 21°C (70°F).

Average Temperature Nantes

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Nantes

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Nantes

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Average Sea Temperature Nantes

What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface
What is Average Sea Temperature?
Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

Nantes : Next 24-Hour Weather

Today - 7th September 2026

Sunrise 07:33

Sunrise

Sunset 20:35

Sunset
19:00
Patchy rain possible
24°C (74°F)
20:00
Patchy rain possible
22°C (70°F)
21:00
Partly cloudy
19°C (65°F)
22:00
Mist
18°C (64°F)
23:00
Fog
18°C (63°F)

Tomorrow - 8th September 2026

Sunrise 07:33

Sunrise

Sunset 20:35

Sunset
0:00
Fog
17°C (62°F)
1:00
Fog
17°C (62°F)
2:00
Fog
17°C (62°F)
3:00
Fog
17°C (61°F)
4:00
Fog
17°C (61°F)
5:00
Fog
16°C (61°F)
6:00
Patchy rain possible
17°C (62°F)
7:00
Patchy rain possible
16°C (61°F)
8:00
Overcast
17°C (61°F)
9:00
Overcast
18°C (64°F)
10:00
Overcast
20°C (68°F)
11:00
Patchy rain possible
22°C (70°F)
12:00
Patchy rain possible
20°C (68°F)
13:00
Patchy rain possible
20°C (67°F)
14:00
Patchy rain possible
21°C (69°F)
15:00
Light rain shower
23°C (72°F)
16:00
Patchy rain possible
23°C (73°F)
17:00
Overcast
19°C (65°F)
18:00
Overcast
20°C (67°F)
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