Monthly weather forecast and climate
Rennes, France

Weather in January

January, the same as December, in Rennes, France, is a frosty winter month, with average temperature fluctuating between 8.4°C (47.1°F) and 2.6°C (36.7°F). January is the coldest month, with an average high-temperature of 8.4°C (47.1°F) and an average low-temperature of 2.6°C (36.7°F). Weather in January »

Weather in February

The last month of the winter, February, is also a frosty month in Rennes, France, with average temperature fluctuating between 9.1°C (48.4°F) and 2.3°C (36.1°F). In February, the average high-temperature is relatively the same as in January - a still frosty 9.1°C (48.4°F). Weather in February »

Weather in March

March, the first month of the spring, in Rennes, is a cool month, with average temperature fluctuating between 12.1°C (53.8°F) and 3.6°C (38.5°F). In Rennes, the average high-temperature in March slightly increases, from a frosty 9.1°C (48.4°F) in February, to a fresh 12.1°C (53.8°F). Weather in March »

Weather in April

April in Rennes, France, is a moderate spring month, with average temperature varying between 5.2°C (41.4°F) and 15.2°C (59.4°F). In April, the average high-temperature slightly increases, from a cool 12.1°C (53.8°F) in March, to a moderate 15.2°C (59.4°F). Weather in April »

Weather in May

May, the last month of the spring, in Rennes, is an enjoyable month, with average temperature ranging between min 8°C (46.4°F) and max 17.4°C (63.3°F). In May, the average high-temperature is almost the same as in April - an enjoyable 17.4°C (63.3°F). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Rennes, France, with average temperature fluctuating between 11°C (51.8°F) and 20.7°C (69.3°F). In Rennes, France, the average high-temperature slightly increases, from a comfortable 17.4°C (63.3°F) in May, to an agreeable 20.7°C (69.3°F). Weather in June »

Weather in July

July is a warm summer month in Rennes, France, with average temperature varying between 23°C (73.4°F) and 12.8°C (55°F). In July, the average high-temperature is practically the same as in June - a moderately hot 23°C (73.4°F). Weather in July »

Weather in August

August, the last month of the summer, in Rennes, is another warm month, with average temperature varying between 12.6°C (54.7°F) and 23.1°C (73.6°F). With an average high-temperature of 23.1°C (73.6°F) and an average low-temperature of 12.6°C (54.7°F), August is the warmest month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Rennes, France, with average temperature ranging between min 10.8°C (51.4°F) and max 20.8°C (69.4°F). In Rennes, France, the average high-temperature is relatively the same as in August - an agreeable 20.8°C (69.4°F). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Rennes, France, with temperature in the range of an average high of 16.9°C (62.4°F) and an average low of 9.2°C (48.6°F). In Rennes, the average high-temperature marginally drops, from a pleasant 20.8°C (69.4°F) in September, to an enjoyable 16.9°C (62.4°F). Weather in October »

Weather in November

November, the last month of the autumn, in Rennes, is also a fresh month, with temperature in the range of an average low of 6.3°C (43.3°F) and an average high of 11.9°C (53.4°F). In Rennes, the average high-temperature slightly decreases, from an enjoyable 16.9°C (62.4°F) in October, to a cool 11.9°C (53.4°F). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Rennes, France, with average temperature ranging between max 9.1°C (48.4°F) and min 4.2°C (39.6°F). In Rennes, the average high-temperature in December is practically the same as in November - a frosty 9.1°C (48.4°F). Weather in December »
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FAQ

What is the coldest month in Rennes?

The coldest month is January, with an average high-temperature of 8.4°C (47.1°F) and an average low-temperature of 2.6°C (36.7°F).

How much does it rain in Rennes?

In Rennes, France, during the entire year, the rain falls for 150.1 days and collects up to 330mm (12.99") of precipitation.

When does it snow in Rennes?

January through April, November and December are months with snowfall in Rennes, France.

How many days does it snow in Rennes?

Throughout the year, in Rennes, there are 2.8 snowfall days, and 10mm (0.39") of snow is accumulated.

What is the month with the least sunshine in Rennes?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

What are the months with the lowest UV index in Rennes?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most in Rennes?

Months with the most snowfall are February through April and December, with an average 2mm (0.08") of accumulated snow.

When it does not snow in Rennes?

May through October are months without snowfall.

What is the rainiest month in Rennes?

June is the month with the most rainfall in Rennes. Rain falls for 14.4 days and accumulates 39mm (1.54") of precipitation.

When are the longest days in Rennes?

The month with the longest days in Rennes, France, is June, with an average of 16h of daylight.

When is the highest UV index in Rennes?

Months with the highest UV index in Rennes, France, are June through August, with an average maximum UV index of 5.

What are the least humid months in Rennes?

Months with the lowest humidity in Rennes are July through September, with an average relative humidity of 78%.

What month has the most sunshine in Rennes?

With an average of 9.7h of sunshine, July has the most sunshine of the year in Rennes.

What is the warmest month in Rennes?

August is the warmest month, with an average high-temperature of 23.1°C (73.6°F) and an average low-temperature of 12.6°C (54.7°F).

What is the driest month in Rennes?

The month with the least rainfall is September when the rain falls for 8.4 days and typically collects 12mm (0.47") of precipitation.

What is the most humid month in Rennes?

With an average relative humidity of 88%, December is the most humid month in Rennes, France.

What is the month with the shortest days in Rennes?

December has the shortest days of the year, with an average of 8.5h of daylight.

Average pressure
Rennes, France

Average pressure - Rennes, France

The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).

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Average wind speed
Rennes, France

Average wind speed - Rennes, France

The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).

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Average humidity
Rennes, France

Average humidity - Rennes, France

The month with the highest relative humidity is December (88%).
Months with the lowest relative humidity are July, August and September (78%).

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Average rainfall
Rennes, France

Average rainfall - Rennes, France

The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (12mm).

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Average rainfall days
Rennes, France

Average rainfall days - Rennes, France

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (8.4 days).

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Average snowfall
Rennes, France

Average snowfall - Rennes, France

Months with the highest snowfall are February, March, April and December (2mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days
Rennes, France

Average snowfall days - Rennes, France

The month with the highest number of snowfall days is February (0.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Rennes, France

Average daylight / Average sunshine - Rennes, France

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is July (Average sunshine: 9.7h).
The month with the least sunshine is January (Average sunshine: 4.2h).

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Average sunshine days
Rennes, France

Average sunshine days - Rennes, France

The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is May (12.1 days).

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Average UV index
Rennes, France

Average UV index - Rennes, France

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
Rennes, France

Average visibility - Rennes, France

Months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
Months with the lowest visibility are May, August and September (8km).

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