Brest weather

Our guide to the weather in Brest during August

20

Average high

5

UV Index

86mm

Monthly rainfall

17

Sea temperature

We've looked at the most up-to-date weather data for Brest, 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 Brest weather in August.

How warm is it in Brest during August?

August is typically the warmest month in Brest. The temperature reaches around 20℃ during the daytime, falling away to 14℃ 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 Brest during August?

On average, there will be 5 rainy days during the month, amounting to 85.7mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Brest during August?

You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during August. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

How warm is the sea in Brest during August?

The water around Brest is around 17℃ 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 Brest

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

9.4

Brest weather in

January
9.4

Brest weather in

February
11.1

Brest weather in

March
13.3

Brest weather in

April
15.5

Brest weather in

May
18.1

Brest weather in

June
20.0

Brest weather in

July
20.1

Brest weather in

August
18.9

Brest weather in

September
16.0

Brest weather in

October
12.5

Brest weather in

November
10.5

Brest weather in

December