May weather forecastCologne, Germany

Weather in May

May's arrival blankets Cologne in definitive warmth. The high temperature stretches to an average of 19.3°C (66.7°F), accompanied by a moderate rise in the number of daylight hours to 15.6. It emphasizes the warm welcome of summer in the city with abundant sunshine, but sees a significant upturn in the rainfall to 72mm (2.83"). Nonetheless, the month holds a charm with blooming flora, vibrant city life, and sunny skies. Come June, the weather becomes warmer and the days extend to their longest duration.

Temperature

May in Cologne sees a marginal temperature increase, moving from a mild 15.1°C (59.2°F) in April to an enjoyable 19.3°C (66.7°F). During the month of May, Cologne's nighttime temperature lowers to an average of 8.1°C (46.6°F).

Rainfall

In Cologne, in May, it is raining for 16 days, with typically 72mm (2.83") of accumulated precipitation. In Cologne, Germany, during the entire year, the rain falls for 192 days and collects up to 839mm (33.03") of precipitation.

Daylight

In May, the average length of the day in Cologne is 15h and 34min.
On the first day of May in Cologne, Germany, sunrise is at 06:04 and sunset at 20:54. On the last day of the month, sunrise is at 05:23 and sunset at 21:36 CEST.

Sunshine

The months with the most sunshine are May through July, with an average of 5.9h of sunshine.

UV index

In May, the average daily maximum UV index in Cologne is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.