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Weather in Köln for May 2025

Your guide to Köln weather in May - trends and predictions
  • In general, the average temperature in Köln at the beginning of May is 18 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.3 °C by the end of May.

  • The climate of Köln in May is notably wet, with an average of 13 rainy days.

  • Is May a good time to visit Köln? check out the best time to travel to Köln page.

  • New! Chat with our AI weatherman - it’s amazing and free.
Average dry days
18
Dry days
Average rainy days
13
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/8°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Köln in May average weather

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Temperatures trend during May in Köln

See the weather trend as well as the moving average line
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May weather day by day

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Date Weather Temperatures Rain UV More
1 May Moderate rain at times
Moderate rain at times
22° /9° 3.3 mm 5
2 May Patchy rain possible
Patchy rain possible
16° /7° 2.1 mm 4
3 May Overcast
Overcast
15° /5° 7.3 mm 4
4 May Overcast
Overcast
19° /6° 0.2 mm 5
5 May Moderate or heavy rain shower
Moderate or heavy rain shower
18° /9° 2.7 mm 4
6 May Patchy rain possible
Patchy rain possible
17° /9° 7.6 mm 4
7 May Moderate rain at times
Moderate rain at times
19° /11° 6 mm 4
8 May Moderate rain at times
Moderate rain at times
17° /10° 4.4 mm 4
9 May Moderate or heavy rain shower
Moderate or heavy rain shower
18° /10° 11 mm 5
10 May Heavy rain at times
Heavy rain at times
18° /9° 6 mm 4
11 May Patchy rain possible
Patchy rain possible
20° /9° 1.6 mm 5
12 May Moderate or heavy rain shower
Moderate or heavy rain shower
21° /11° 3.6 mm 5
13 May Moderate rain at times
Moderate rain at times
21° /11° 1.7 mm 5
14 May Patchy rain possible
Patchy rain possible
23° /10° 0.3 mm 6
15 May Moderate rain at times
Moderate rain at times
19° /11° 1.9 mm 5
16 May Patchy rain possible
Patchy rain possible
15° /9° 4.3 mm 4
17 May Patchy rain possible
Patchy rain possible
16° /8° 4.7 mm 4
18 May Overcast
Overcast
16° /7° 2.8 mm 4
19 May Partly cloudy
Partly cloudy
19° /8° 2.9 mm 5
20 May Patchy rain possible
Patchy rain possible
19° /10° 1.2 mm 5
21 May Patchy rain possible
Patchy rain possible
24° /11° 5.9 mm 5
22 May Moderate or heavy rain shower
Moderate or heavy rain shower
20° /13° 6.1 mm 5
23 May Patchy rain possible
Patchy rain possible
19° /9° 1.1 mm 5
24 May Patchy rain possible
Patchy rain possible
14° /9° 4.5 mm 3
25 May Partly cloudy
Partly cloudy
20° /8° 0.3 mm 5
26 May Sunny
Sunny
21° /8° 2.4 mm 6
27 May Overcast
Overcast
21° /8° 3.1 mm 5
28 May Partly cloudy
Partly cloudy
21° /9° 2.8 mm 5
29 May Cloudy
Cloudy
19° /10° 10 mm 5
30 May Partly cloudy
Partly cloudy
18° /9° 4.7 mm 5
31 May Sunny
Sunny
22° /8° 0.4 mm 6
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Important Notice
Our weather forecast for Köln in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Köln forecast closer to your planned date for the most up-to-date weather information.

Guide for Köln in May

In May, Köln, Germany experiences a transition from spring to early summer, bringing about pleasant weather conditions. At the beginning of the month, the average temperature hovers around 13°, with mild and comfortable conditions.

As the month progresses, temperatures gradually rise, reaching an average of 18° by the end of May. The city experiences longer daylight hours, providing ample opportunity for outdoor activities and sightseeing.

In terms of precipitation, Köln sees moderate rainfall throughout May, with occasional showers and overcast skies. However, the overall amount of rainfall is relatively low, allowing for enjoyable outdoor excursions.

Travelers can expect the occasional drizzle, so it's advisable to pack an umbrella or light raincoat.

Overall, May in Köln offers favorable weather for exploring the city's numerous attractions, including the iconic Cologne Cathedral, picturesque Old Town, and vibrant riverside promenades. The pleasant temperatures and manageable rainfall make it an ideal time to visit this historic city.

Köln in May - FAQ

Is May a good time to visit Köln?
Yes, May is a good time to traveling to Köln, read more about the best time to visit Köln.
What are the expected maximum and minimum temperatures in Köln during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Köln during May?
Significant rainfall exceeding 186.1 mm is expected in Köln during May, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Köln during May?
The average wind speed in Köln during May is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Köln in May?

As you prepare for your trip to Köln in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Köln, during May, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Warm Clothing: Sweaters, hoodies, long pants
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
  • Accessories
    • Scarves: To protect you from the cold wind
    • Gloves/Mittens: Essential for cold weather
    • Warm Hats: Warm hats for insulation in cold weather
    • Umbrellas/Raincoats: For rainy days

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Location coordinates Where is Köln?

Get accurate weather forecasts for Köln, located at latitude 50.933 and longitude 6.95. Stay updated with localized weather information tailored for Köln.

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