August Weather in Cologne, United States

Last updated: June 24, 2025

In Cologne, United States, the average temperature in August hovers around 21°C (71°F), with minimums dipping to 11°C (51°F) and maximums soaring up to 32°C (91°F). Expect about 145 mm (5.7 in) of precipitation across 11 days, contributing to an average humidity level of 81%. Make sure to embrace the warm days and prepare for the occasional rain!

August Temperature in Cologne

In August in Cologne, the average temperature is 21°C (71°F). The maximum can reach 32°C (91°F), and the minimum can be as low as 11°C (51°F). This pleasant climate makes it an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

August Weather in Cologne: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Cologne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cologne, August typically has an average temperature of 21°C (71°F), with highs reaching up to 32°C (91°F) and lows dropping to around 11°C (51°F).

Data source: Temperature data for Cologne generated using information from the Copernicus Climate Change Service.

August Precipitation in Cologne

In Cologne, in August, the precipitation amount is 145 mm (5.7 in) over a span of 11 days.

August Precipitation Trends in Cologne

The chart displays monthly precipitation patterns in Cologne, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Cologne, August typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Cologne

In Cologne in August, humidity is 81%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that makes traveling feel both refreshing and slightly heavy, often leading to a sticky sensation that can quickly deplete your energy.

August Average Humidity in Cologne

This chart illustrates the average monthly humidity levels in Cologne, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Cologne is approximately 81%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Cologne

In Cologne in August, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Cologne.

Maximum UV Index Levels in Cologne for August

The chart shows the monthly maximum UV Index (UVI) for Cologne in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Cologne typically reaches 9, which falls under the very high exposure category.

Data source: Cologne August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Cologne Compares to Other Months

Weather in Cologne varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Cologne, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Cologne, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (17°F)	29 mm (1.1 inches)	87%	low
February Weather	-9°C (17°F)	31 mm (1.2 inches)	90%	moderate
March Weather	1°C (33°F)	58 mm (2.3 inches)	85%	moderate
April Weather	6°C (43°F)	81 mm (3.2 inches)	84%	high
May Weather	15°C (59°F)	119 mm (4.7 inches)	78%	very high
June Weather	22°C (72°F)	90 mm (3.6 inches)	80%	very high
July Weather	24°C (75°F)	105 mm (4.1 inches)	81%	very high
August Weather	21°C (71°F)	145 mm (5.7 inches)	81%	very high
September Weather	18°C (64°F)	117 mm (4.6 inches)	81%	high
October Weather	9°C (49°F)	92 mm (3.6 inches)	84%	moderate
November Weather	1°C (34°F)	32 mm (1.2 inches)	88%	moderate
December Weather	-5°C (24°F)	44 mm (1.7 inches)	84%	low