Weather In Cologne, Germany: September's Climate

Planning a trip to Cologne, Germany, in September? Here's what you need to know about the weather. Expect temperatures to range from highs of 64°F-69°F (18°C-21°C) to lows of 48°F-49°F (9°C-10°C). It's a good idea to bring a sweater or two, as it will feel mildly cool and breezy. You might also need an umbrella, as there's a 23%-31% chance of rain, with an average of 15 rainy days and 75mm of accumulated precipitation for the month. Despite the rain, you'll still get a healthy dose of sunshine, with approximately 147 hours of sunlight expected for the month. So, whether you're strolling through the picturesque autumn foliage or sipping warm drinks under the moonlit skyline, September in Cologne offers a delightful mix of cool temperatures and golden hues to enjoy.

Average temperatures in September range from highs of 69°F (21°C) to lows of 49°F (10°C)

September in Cologne is mildly cool, with average temperatures ranging from highs of 69°F (21°C) to lows of 49°F (10°C). This temperature range is ideal for those who prefer cooler weather and a break from the scorching summer heat. It is recommended to dress in something moderately warm, like a sweater, to stay comfortable during the day and night.

The temperature in Cologne during September is a significant drop from the previous summer months, with July being the hottest month, reaching highs of 77°F (25°C). February, on the other hand, is the coldest month, with highs of only 42°F (6°C). So, if you're planning a trip to Cologne in September, expect a pleasant and refreshing change from the summer heat.

The average high of 69°F (21°C) in September is perfect for exploring the city without breaking a sweat. You can comfortably walk through the historic old town, visit museums and art galleries, or enjoy a leisurely cruise on the Rhine River. However, don't forget that the temperature can drop to 49°F (10°C) in the evenings, so it's a good idea to carry an extra layer to stay warm when the sun goes down.

The weather in September makes it an excellent time to indulge in some outdoor activities without the discomfort of extreme heat. You can rent a bike and cycle through the city's beautiful parks or along the Rhine River, soaking in the fresh autumn air. It's also a great time to enjoy a picnic in one of the many green spaces that Cologne has to offer.

Overall, with its mildly cool temperatures, September in Cologne offers a pleasant break from the summer heat. It's a month that strikes a balance between warm and cold, providing a comfortable environment for both indoor and outdoor activities. So, if you're planning a trip to this German city, September could be an ideal time to visit and explore all that Cologne has to offer.

There is a 23% chance of rain on an average day in September

September in Cologne, Germany, is characterised by mild weather, with temperatures ranging from highs of 69°F (21°C) to lows of 49°F (10°C). This information is based on historical data. Notably, there is a 23% chance of rain on any given day during this month.

The chance of rain in September places it somewhere in the middle when compared to the rest of the year. December, for example, has a 40% chance of precipitation, while April, the driest month, has a 19% chance.

The amount of rain that falls in September is around 0.33 inches (8.4 mm), which is considered light rain. This is significantly less than the wettest month, December, which sees 0.10 inches (2.6 mm) of precipitation on a typical day.

September in Cologne offers a mix of weather conditions, with a moderate amount of sunshine and a slight chance of rain. The month usually provides pleasant conditions for those seeking a balance between dry skies and moderate temperatures.

It is worth noting that the temperatures in September can feel breezy, so a sweater or a light jacket is recommended. The average high of 69°F (21°C) and low of 49°F (10°C) create a mildly cool atmosphere.

Overall, September in Cologne offers a mix of weather, with a slight chance of light rain and temperatures that require a bit of extra layering.

The average amount of sunshine in September is 4.5 hours

When visiting Cologne, Germany in September, you can expect a moderate amount of sunshine. On average, the city experiences approximately 147 hours of sunlight throughout the month, which equates to about 4.5 hours of sunshine per day. This makes it neither too gloomy nor overly bright, providing a pleasant balance for those seeking a mix of indoor and outdoor activities.

The average daily sunshine in September contributes to the overall comfortable weather conditions in Cologne during this time of year. With an average high of 69°F (21°C) and a low of 49°F (10°C), the temperature is generally mildly cool, and you may experience a breezy feeling as well. This weather is a welcome change from the hotter summer months, making September an ideal time to explore exciting German cities like Cologne without the peak summer crowds.

The amount of sunshine in September strikes a balance between bright days and cloudy skies. The clear or sunny days, with partly cloudy or less cloud cover, amount to about 50% of the time during the month. This means that while you'll have plenty of sunshine to enjoy, there will also be periods of cloudiness, providing a mix of weather conditions.

The average amount of sunshine in September also means that you'll want to be prepared for varying conditions. While you may experience sunny days, having a light jacket or sweater for the cooler temperatures and breezy days is recommended. The evenings can feel particularly chilly, so make sure to dress warmly for any outdoor activities or evening strolls along the Rhine River.

The moderate sunshine in September is a result of the transition from summer to autumn. The days are getting shorter, and the amount of daylight in Cologne during this month averages 12.7 hours, with sunrise around 7:05 AM and sunset at 7:47 PM. So, while you'll have plenty of daylight hours to explore the city, the shorter days also signal the changing seasons.

In summary, the average amount of sunshine in Cologne, Germany in September is approximately 4.5 hours per day. This moderate sunshine contributes to pleasant weather conditions, making it an ideal time to visit the city and enjoy a mix of indoor and outdoor activities. Be sure to pack accordingly for the mildly cool temperatures and varying conditions, and you'll be set to enjoy all that Cologne has to offer during this beautiful time of year.

The average UV index in September is 4

The UV index is a measure of the intensity of the sun's ultraviolet radiation at a particular place and time. In September, the average UV index in Cologne, Germany, is 4. This means that you can still enjoy the sun, but it is important to take some precautions to protect yourself from overexposure to UV radiation.

At this UV level, it is generally considered safe to be outside for extended periods, but it is always important to practice sun safety. This includes wearing sunscreen with a high SPF rating, seeking shade when possible, and wearing protective clothing, such as a hat and sunglasses. It is also a good idea to stay hydrated, as UV radiation can be dehydrating.

The UV index varies throughout the day, and there are times when it may be higher or lower than the average of 4. It is typically higher in the middle of the day when the sun is at its peak, and lower in the early morning and late afternoon. This means that you may need to take extra precautions during those times, such as avoiding direct sunlight or wearing additional protective clothing.

It's worth noting that the UV index is not the only factor that determines the comfort and safety of being outdoors. The temperature, humidity, and wind speed can also play a role. In September, Cologne typically has mild temperatures, with an average high of 21°C and a low of 10°C. It can be breezy, with an average wind speed of 13.2 mph, and the humidity levels are moderate at 69%.

So, if you're planning to spend time outdoors in Cologne in September, it's a good idea to check the UV index and other weather conditions before heading out. This will help you prepare accordingly and ensure that you stay safe and comfortable during your time in the sun.

The average wind speed in September is 13.2 mph

The average wind speed in Cologne, Germany, in September is 13.2 mph, or 21.2 kph. This is a relatively low wind speed compared to other months, making it a good time to visit if you prefer calmer conditions.

The wind speed in September is significantly lower than in December, which is the windiest month, with an average wind speed of 18.7 mph (30.0 kph). July, on the other hand, is the calmest month, with an average wind speed of 12.3 mph (19.7 kph).

The overall weather in September in Cologne could be described as mildly cool and breezy, with an average high of 69°F (21°C) and a low of 49°F (10°C). This is a comfortable temperature range for most people, who would typically dress in something moderately warm, like a sweater.

The average wind speed of 13.2 mph contributes to the breezy feeling, especially when combined with the temperature range. This wind speed is not too strong, but it will be noticeable, and it may be a good idea to wear a light jacket or layer your clothing to adjust to the conditions.

The wind speed and temperature in September make it a pleasant time to explore the city of Cologne and its surrounding areas. The mild weather can be ideal for walking and outdoor activities, as you won't have to contend with extreme heat or strong winds. It's a good idea to check the daily weather forecast before planning any outdoor activities, as wind speed can vary from day to day, and there may be occasional stronger gusts.

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