Nantes weather

Our guide to the weather in Nantes during May

19

Average high

5

UV Index

74mm

Monthly rainfall

15

Sea temperature

We've looked at the most up-to-date weather data for Nantes, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Nantes weather in May.

What's the temperature like in Nantes during May?

The temperature reaches around 19℃ during the daytime in May, falling away to 9℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Nantes during May?

On average, there will be 5 rainy days during the month, amounting to 73.8mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Nantes during May?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during May. With moderate air temperatures, any breeze will feel cool.

Is it too cold to swim in the sea in Nantes during May?

The water around Nantes is a bracing 15℃ during May and would be considered too cold for swimming. Those who are a bit more hardy or frequently swim in cooler open water might want to take a quick dip. A wetsuit would be advisable if you wish to spend longer than 5 minutes in the water.

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Weather in Nantes

Our month-by-month guide to the weather and climate in Nantes

9.0

Nantes weather in

January
9.9

Nantes weather in

February
12.7

Nantes weather in

March
15.5

Nantes weather in

April
18.5

Nantes weather in

May
22.4

Nantes weather in

June
24.9

Nantes weather in

July
25.2

Nantes weather in

August
22.9

Nantes weather in

September
18.2

Nantes weather in

October
13.1

Nantes weather in

November
10.2

Nantes weather in

December