Dinan

Brittany Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Brittany, France in May.

Are you planning a trip a to Brittany, France in May and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Brittany in May

Brittany, France 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 (59°F) to pleasant in Varennes at 21°C (70°F). Nighttime temperatures generally drop to 10°C (50°F) in Varennes and 11°C (52°F) in Roscoff.

For specific regional insights in Brittany, France, refer to the map provided below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Bangor with an average of 49 mm (1.9 in) to moderate rainfall in Saint-Thégonnec with 83 mm (3.3 in).

Average sunshine

Sunshine is fairly consistent across many areas. Saint Malo receives about 189 hours of sunlight in May, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Brittany by month

Best Places to Visit in Brittany in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Brittany.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Brittany

What is the weather like in May for some of the most popular destinations in Brittany, France?

Temperature range in Brittany (May)

Precipitation variation in Brittany (May)

Saint Malo

In May Saint Malo generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
14°C (57°F)
17°C (63°F)
19°C (66°F)
Min temperature
8°C (46°F)
11°C (52°F)
13°C (55°F)
Monthly sun hours
164 hours
189 hours
207 hours
Monthly rainfall
67 mm (2.6 in)
67 mm (2.6 in)
61 mm (2.4 in)
Monthly rainy days
14 days
15 days
11 days
Weather conditions

Carnac

In May Carnac generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
14°C (57°F)
17°C (63°F)
20°C (68°F)
Min temperature
9°C (48°F)
11°C (52°F)
14°C (57°F)
Monthly rainfall
63 mm (2.5 in)
56 mm (2.2 in)
47 mm (1.9 in)
Monthly rainy days
16 days
16 days
12 days
Weather conditions

Rennes

In May Rennes generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

May
April
May
June
Max temperature
16°C (61°F)
20°C (68°F)
23°C (73°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
164 hours
193 hours
217 hours
Monthly rainfall
67 mm (2.6 in)
70 mm (2.8 in)
62 mm (2.4 in)
Monthly rainy days
14 days
16 days
12 days
Weather conditions

Brest

In May Brest generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

May
April
May
June
Max temperature
14°C (57°F)
16°C (61°F)
19°C (66°F)
Min temperature
8°C (46°F)
10°C (50°F)
12°C (54°F)
Monthly sun hours
175 hours
212 hours
216 hours
Monthly rainfall
81 mm (3.2 in)
69 mm (2.7 in)
59 mm (2.3 in)
Monthly rainy days
17 days
16 days
14 days
Weather conditions

Dinan

In May Dinan generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

May
April
May
June
Max temperature
16°C (61°F)
19°C (66°F)
21°C (70°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
164 hours
189 hours
207 hours
Monthly rainfall
70 mm (2.8 in)
72 mm (2.8 in)
66 mm (2.6 in)
Monthly rainy days
14 days
15 days
11 days
Weather conditions

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

Popular cities in May

Day & night temperatures, rainfall and average weather in Brittany in May.

City Weather Day temp Night temp Rainfall
Saint Malo 17°C (63°F) 11°C (52°F) 67 mm (2.6 in)
Carnac 17°C (63°F) 11°C (52°F) 56 mm (2.2 in)
Rennes 20°C (68°F) 9°C (48°F) 70 mm (2.8 in)
Brest 16°C (61°F) 10°C (50°F) 69 mm (2.7 in)
Dinan 19°C (66°F) 9°C (48°F) 72 mm (2.8 in)
Perros-Guirec 15°C (59°F) 11°C (52°F) 62 mm (2.4 in)

Brittany weather in May: frequently asked questions

What is the weather like in Brittany, France in May?

Expect tolerable weather across Brittany, France in May. The popular destination of Saint Malo averages 17°C (63°F) by day and 11°C (52°F) at night during this month.

What is the average temperature in Brittany, France in May?

In Saint Malo, the average daytime high in May is 17°C (63°F), while nighttime temperatures drop to around 11°C (52°F).

Does Brittany, France get a lot of rain in May?

Not particularly. Saint Malo averages just 67 mm (2.6 in) of rain in May, making it a mostly dry month for Brittany, France.

Is May a Good Time to Visit Brittany, France?

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

On average, the best time to visit Brittany, France 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.

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.

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