Springtime Showers In Cologne, Germany: Weather In May

Cologne, Germany, welcomes May with a definitive warmth and an abundance of sunshine. The average high temperature in May is 19.3°C (66.7°F), with a low of 8.1°C (46.6°F). The month sees a significant rise in rainfall, with 16 days of precipitation and 72mm (2.83) of accumulated rainfall. However, the charming city of Cologne offers a lively atmosphere in May, with blooming flowers and vibrant city life. The month of May in Cologne is characterised by its moderately chilly and breezy weather, with a small chance of rain.

Average high temperature: 19.3°C (66.7°F)

May in Cologne, Germany, is a month of definitive warmth, with an average high temperature of 19.3°C (66.7°F). This temperature is a welcome change from the mild weather of April, and it marks the beginning of summer in the city. The increase in temperature is accompanied by an extended number of daylight hours, which averages 15.6 hours during the month.

The average high temperature of 19.3°C (66.7°F) in May is a comfortable range for most people. It is not too hot, nor too cold, making it an enjoyable time to explore the city. The temperature also contributes to the vibrant city life and blooming flora that Cologne experiences during this month. The city comes alive with an abundance of sunshine, although there is also a notable increase in rainfall, which can reach up to 72mm (2.83").

The temperature in May is a significant improvement from the colder months, such as February, which has an average high of only 6°C (42°F). It is also much milder than the hottest month, July, when temperatures can reach highs of 25°C (77°F). May's average high temperature strikes a pleasant balance, providing a break from the extremes of winter and summer.

The average high temperature in May is also worth comparing to that of Cologne Bonn Airport, which experiences a daily high of around 69°F during the same month. While the temperatures are similar, the airport's proximity to the city suggests that the two locations share comparable weather patterns.

Overall, May in Cologne offers a delightful average high temperature of 19.3°C (66.7°F). This temperature sets the stage for a charming month filled with vibrant city life, sunny skies, and the beauty of nature in bloom. It is a month that invites exploration and a welcome break from the colder winter months.

Average low temperature: 8.1°C (46.6°F)

Cologne, Germany, experiences a marginal temperature increase in May, with the average low temperature reaching 8.1°C (46.6°F). This temperature serves as a pleasant break from the colder months, with February being the coldest month of the year, averaging -0.7°C (30.94°F).

At this time of year, it is essential to be prepared for varying temperatures throughout the day. While daytime temperatures can reach a comfortable 19.3°C (66.7°F), the nights in May can be chilly, with temperatures dropping to around 8.1°C (46.6°F). This temperature range is indicative of the transition from spring to summer in Cologne, offering a mix of mild and cooler weather.

The temperature in May is a notable shift from the previous month, April, when the average low is a chillier 15.1°C (59.2°F). As May progresses, the nighttime temperature gradually lowers, with the month's coldest days occurring towards the end of May, just before the warmer summer months of June, July, and August.

May in Cologne is characterised by its pleasant days and cool nights. The average daytime temperature of 19.3°C (66.7°F) is comfortable for most, but as the sun sets, the temperature can drop to 8.1°C (46.6°F), so it is advisable to have a light jacket or sweater handy. This temperature range is typical for the region and signifies the gradual transition to the warmer summer season.

Average rainfall: 72mm (2.83)

May in Cologne, Germany, sees a significant increase in rainfall compared to other months, with an average accumulated precipitation of 72mm, or 2.83 inches. This is a notable amount, as it contributes to the city's annual total of 839mm (33.03") of rainfall across 192 rainy days in a year.

During May, it typically rains for about 16 days, and there is a 27% chance of rain on any given day. This is a slight increase from April, which has an average of 53.9mm of precipitation and is considered the driest month in Cologne. The wettest month, on the other hand, is June, with an average of 90.7mm of rainfall.

The rain in May, along with the moderate temperatures, contributes to the blooming flora and vibrant city life that characterise the month. The city experiences an average high temperature of 19.3°C (66.7°F) and a low of 8.1°C (46.6°F) during the night. This temperature range is a slight increase from April and a preview of the warmer summer days to come in June.

The rainfall in May is also accompanied by an increase in daylight hours. The average length of the day in May is 15 hours and 34 minutes, with the month welcoming the longest days of the year as summer approaches. The sunrise and sunset times shift throughout the month, with the latest sunset occurring on the last day of May, at 21:36 CEST.

Average daylight: 15h 34m

May in Cologne, Germany, is a beautiful time of year, with an average of 15 hours and 34 minutes of daylight. This is a notable increase from the first day of the month, when the day is only 14 hours and 49 minutes long, to the end of the month, when the day stretches to 16 hours and 12 minutes. This abundance of daylight showcases the blooming flora and vibrant city life that Cologne has to offer.

The longer days in May are a result of the sun rising earlier and setting later. On the first day of May, sunrise is at 06:04, while on the last day, it is at 05:23. Similarly, sunset on the first of the month is at 20:54, and by the end of May, it has shifted to 21:36. This shift in daylight hours emphasises the transition towards summer and the warm, lively atmosphere of the city.

The month of May in Cologne offers a pleasant balance between daylight and sunshine. While the average daily sunshine duration is 5.9 hours, the city still experiences a significant amount of daylight, with the sun illuminating the city for nearly half of the day on average. This balance between daylight and sunshine creates a charming atmosphere, with the city's attractions and natural surroundings bathed in a soft light.

The daylight hours in May provide ample opportunity to explore Cologne and its surroundings. With the sun shining for an extended period, visitors can comfortably wander through the city's historic streets, discover hidden gems, and enjoy the vibrant city life. The longer days also offer the chance to venture beyond the city, explore nearby towns, and immerse themselves in the beauty of the German countryside.

The transition from spring to summer in Cologne is a delightful experience, and the month of May is a perfect time to witness this transformation. The increasing daylight hours, coupled with the moderate temperatures and blooming flora, make it an ideal season for those seeking to explore the city and its environs in a pleasant and captivating light.

Average UV index: 6 (high risk)

In May, Cologne, Germany, experiences an average daily maximum UV index of 6. This level of UV intensity is considered a high risk for the average person, with a high threat to health from unsafe exposure to UV radiation.

At this UV index, fair-skinned individuals are at risk of sunburn in under 20 minutes. It is recommended that people avoid direct sun exposure and stay in the shade between 10 a.m. and 4 p.m., as this is when UV radiation is most intense. It is important to note that not all shade structures offer full protection. Protective measures such as wearing a wide-brimmed hat, protective clothing, and sunglasses that block UV rays are also advised.

The UV Index, developed by the World Health Organization (WHO) and other international organizations, is an international standard measurement of the strength of UV radiation and its potential effects on human health. The scale is open-ended and linear, directly proportional to the intensity of UV radiation. The UV Index in May in Cologne reflects the city's definitive warmth, abundant sunshine, and longer days, with an average of 5.9 hours of sunshine.

The UV Index changes throughout the day and is usually at its peak during midday when the sun is at its highest point in the sky. This is typically between 11:30 a.m. and 12:30 p.m., or 12:30 p.m. and 1:30 p.m. during daylight saving time. During this time, it is crucial to take extra precautions to minimize sun exposure.

The UV Index helps individuals understand the strength of UV radiation and make informed decisions about sun protection. By checking the UV Index forecast and planning outdoor activities accordingly, one can significantly reduce the risk of sunburn, premature aging of the skin, and the development of skin cancer caused by overexposure to UV radiation.

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