Average daily temperature during the week of 16 December 2024 - 22 December 2024 was 12 °C (54 °F), average minimal (night) temperature was 6 °C (43 °F). The current temperatures are slightly above the long-term average for Rennes, with the daily and nighttime temperatures being 9 °C (48 °F) and 4 °C (39 °F), respectively. The average temperatures during different times of day (local time) were following: 7am 8 °C (46 °F), 10am 8 °C (46 °F), 1pm 10 °C (50 °F), 4pm 10 °C (50 °F), 7pm 9 °C (48 °F), 10pm 9 °C (48 °F).

During this week: 1 day without rain, 4 days with light rain and 2 days with moderate rain were observed. During the whole week, total of 15 mm (0.59 in) of precipitation was observed, which is roughly same as the long term average for Rennes, which is 18 mm (0.71 in). The average cloud coverage during the daytime (from dawn to dusk) was 85 %. There was a meteorological observation of mist.

The wind's speed averaged 4.9 m/s. The atmosferic pressure ranged from 1007 hpa to 1038 hpa. On average, the air humidity in Rennes was 87 %.

During the daytime (from dawn to dusk), there were in average: 0.5 hours clear skies, 7 hours overcast skies and 1.5 hours rainy weather. The sunrise on average occurred at 08:53, and the sunset occurred at 17:14.

Weather overview

Rennes (France) in general has a mild climate. The day temperatures range from 9 °C (47 °F) in January to 24 °C (76 °F) in July. The highest night temperatures could be experienced in July with 14 °C (57 °F), the lowest in February with 3 °C (37 °F). The driest month is August with just 8 days of rain, on the contrary, the month when it rains the most is December with 13 days of rain.

January weather

The day temperature reaches its minimum, with its value being 9 °C (47 °F) in Rennes, while the night temperature continues to descent, its value is 3 °C (37 °F). The number of rainy days starts to descent, with its value being 12 days, while the rainfall amount descents similarly to the previous month, with its value of 69 mm (2.73 in). The maximum of the wind speed is observable.

February weather

The day temperature starts to rise, with its value being 10 °C (49 °F) in Rennes, while the night temperature reaches its minimum, with its value of 3 °C (37 °F). The rainfall amount descents similarly to the previous month, its value is 52 mm (2.04 in), and the number of rainy days descents similarly to the previous month as well, with its value of 11 days. The number of sun hours (without clouds) rise's start could be observed, with its value of 3 hours.

March weather

The day temperature rises similarly to the previous month, its value is 13 °C (55 °F) in Rennes, while the beginning of the rise of the night temperature could be noticed, with its value being 4 °C (39 °F). The descent of the number of rainy days can be observed. The rise of the number of sun hours (without clouds) can be observed, its value is 5 hours.

April weather

The day temperature continues to rise in Rennes, and the rise of the night temperature can be observed as well, with its value of 6 °C (42 °F). The number of sun hours (without clouds) rises similarly to the previous month, the value of this measure is 6 hours.

May weather

The tourist season is about to start in Rennes. The day temperature rises similarly to the previous month, with its value being 19 °C (66 °F), and the night temperature continues to rise too, with its value being 9 °C (48 °F). The rise of the number of sun hours (without clouds) can be observed, its value is 7 hours. The beginning of the rise of the rainfall amount could be noticed in this month.

June weather

The ongoing tourist season is noticeable in Rennes. The day temperature rises similarly to the previous month, with its value being 22 °C (72 °F), and the rise of the night temperature can be observed too, its value is 12 °C (53 °F). The minimum of the rainfall amount is observable in this month. The number of sun hours (without clouds) continues to rise, its value is 8 hours.

July weather

There is pending tourist season in Rennes. The day temperature is on its maximum, the value of this measure is 24 °C (76 °F), and the night temperature reaches its maximum as well, with its value of 14 °C (57 °F). The minimum of the humidity can be noticed, its value is 76 %. The number of sun hours (without clouds) is on its maximum, its value is 8 hours.

August weather

The number of rainy days reaches its minimum, with its value of 8 days in Rennes. The dry season continues, and the ongoing tourist season is noticeable as well this month. The number of sun hours (without clouds) descent's start could be observed, with its value being 7 hours.

September weather

The day temperature descent's start could be observed in Rennes, and the night temperature descent's start could be observed too, with its value being 12 °C (53 °F). There is pending tourist season. The number of rainy days rise's start could be observed in this month. The minimum of the wind speed can be noticed, with its value of 3.

October weather

The descent of the day temperature can be observed, with its value being 17 °C (62 °F) in Rennes, and the night temperature descents similarly to the previous month as well. The rise of the number of rainy days can be observed, with its value being 11 days, while the rainfall amount starts to rise, with its value of 80 mm (3.14 in). The number of sun hours (without clouds) continues to descent, the value of this measure is 4 hours.

November weather

The day temperature continues to descent, its value is 12 °C (53 °F) in Rennes, and the night temperature continues to descent too, with its value being 6 °C (42 °F). The number of rainy days continues to rise, the value of this measure is 13 days, while the rainfall amount is on its maximum, the value of this measure is 81 mm (3.20 in). The number of sun hours (without clouds) continues to descent, the value of this measure is 3 hours.

December weather

The day temperature continues to descent, with its value of 9 °C (48 °F) in Rennes. The number of rainy days reaches its maximum, its value is 13 days, while the beginning of the descent of the rainfall amount could be noticed, with its value being 75 mm (2.95 in). The minimum of the number of sun hours (without clouds) is observable, with its value being 2 hours. The day length reaches its minimum, the value of this measure is 8 hours.

How many hours of sun to expect in Rennes in March?

In Rennes in March, you can expect around 5 hours of sunshine.

How windy is Rennes in April?

An average wind scale that can be expected in Rennes in April is 4.

Is May a good month to visit Rennes?

May is a good month to visit Rennes. There are some people, who may feel a slight chill at 19 °C (66 °F), but others will feel perfectly fine. The temperature of 9 °C (48 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.

How many days of precipitation on average can I expect in Rennes in June?

In Rennes in June, we can expect 9 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.0 days of the week, or in general - 29 % days.

What temperature can I expect during the day in July in Rennes?

In July in Rennes, the average daily temperatures will be 24 °C (76 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

Is August part of the wet season in Rennes?

No, there is no wet season in August in Rennes - you can expect 8 days of rain during the month.

What is the sea temperature in September in Rennes?

The sea will reach 18 °C (64 °F) in Rennes in September. At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.

What is the air temperature in October in Rennes at night?

The average night temperature in October in Rennes is 9 °C (48 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.

Is November part of the dry season in Rennes?

No, November is not a dry month in Rennes, expect rain approximately 13 days in a month.