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Weather in May in Brittany

Thinking about venturing to Brittany this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Brittany in May?

Brittany is a region in France. May in Brittany generally has temperatures that range from mild to pleasant, with moderate precipitation.

Temperatures

The average highest temperatures fluctuate between mild in Roscoff at 15°C to pleasant in Varennes at 21°C. Nighttime temperatures generally drop to 10°C in Varennes and 11°C in Roscoff.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Bangor with an average of 49 mm to moderate rainfall in Saint-Thégonnec with 83 mm.

Average sunshine

Most cities enjoy a balanced amount of sunshine, with around 189 hours of sunlight anticipated in Saint Malo. This ensures the days are neither too dim nor excessively sunny.

To learn more about the conditions in specific areas of Brittany in May, check out the map below. For more details on the yearly weather, visit our Brittany climate page.

Where to go in Brittany in May

Find more information for the most popular destinations in the Brittany on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in May for the 5 most popular destinations in Brittany?

Saint Malo

In May Saint Malo generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Saint Malo
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
8°C 
164 hours 
67 mm 
14 days 
17°C 
11°C 
189 hours 
67 mm 
15 days 
June   >> June
>>  
19°C 
13°C 
207 hours 
61 mm 
11 days 
Climate in Saint Malo

Carnac

In May Carnac generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Carnac
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
9°C 
63 mm 
16 days 
17°C 
11°C 
56 mm 
16 days 
June   >> June
>>  
20°C 
14°C 
47 mm 
12 days 
Climate in Carnac

Rennes

In May Rennes generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Rennes
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
16°C 
6°C 
164 hours 
67 mm 
14 days 
20°C 
9°C 
193 hours 
70 mm 
16 days 
June   >> June
>>  
23°C 
12°C 
217 hours 
62 mm 
12 days 
Climate in Rennes

Brest

In May Brest generally has moderate temperatures with maximum daytime temperatures around 16°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Brest
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
14°C 
8°C 
175 hours 
81 mm 
17 days 
16°C 
10°C 
212 hours 
69 mm 
16 days 
June   >> June
>>  
19°C 
12°C 
216 hours 
59 mm 
14 days 
Climate in Brest

Perros-Guirec

In May Perros-Guirec generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are tolerable that month.

Perros-Guirec
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
8°C 
73 mm 
15 days 
15°C 
11°C 
62 mm 
15 days 
June   >> June
>>  
18°C 
13°C 
53 mm 
12 days 
Climate in Perros-Guirec

Is your destination not in the list? Have a look at other destinations in Brittany, in France.

Is May the best time to visit Brittany?

In our opinion, May is a good time to visit Brittany with overall tolerable weather in Saint Malo.

On average, the best time to visit Brittany is in July, August and September with generally perfect weather in Saint Malo. On the other hand, the weather in January and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Brittany. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to France? Get detailed historical weather averages for many cities in France.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.