Nantes weather

Our guide to the weather in Nantes during August

25

Average high

5

UV Index

47mm

Monthly rainfall

20

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 August.

How warm is it in Nantes during August?

August is typically the hottest month in Nantes. The temperature hits about 25℃ during the day, falling away to a balmy 15℃ 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 August?

On average, there will be 3 rainy days during the month, amounting to 46.8mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, August will see just 1 days that produce a storm.

Is it windy in Nantes during August?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in August. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

How warm is the sea in Nantes during August?

The water around Nantes is around 20℃ during August. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.

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Weather in Nantes

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

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