Cologne weather

Our guide to the weather in Cologne during May

19

Average high

4

UV Index

83mm

Monthly rainfall

74%

Humidity

Cologne is a vibrant city with plenty of attractions, from its iconic cathedral to its historic old town. May is a great time to explore the city, with mild temperatures and plenty of outdoor activities. We've looked at the most up-to-date weather data for Cologne, 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 Cologne weather in May.

What's the temperature like in Cologne 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 Cologne during May?

On average, there will be 6 rainy days during the month, amounting to 82.5mm 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 Cologne during May?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in May. With moderate air temperatures, any breeze will feel cool.

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Weather in Cologne

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

4.8

Cologne weather in

January
6.5

Cologne weather in

February
10.9

Cologne weather in

March
15.7

Cologne weather in

April
18.6

Cologne weather in

May
22.6

Cologne weather in

June
24.5

Cologne weather in

July
24.8

Cologne weather in

August
20.9

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September
15.5

Cologne weather in

October
10.1

Cologne weather in

November
6.1

Cologne weather in

December