August Weather in Altenahr, Germany

Last updated: August 23, 2025

In August, the average temperature in Altenahr, Germany hovers around 18°C (65°F). However, temperatures can range from a brisk 6°C (42°F) to a sweltering 34°C (94°F). Expect about 81 mm (3.2 in) of precipitation over approximately 15 days, contributing to an average humidity of 71%.

August Temperature in Altenahr

In August in Altenahr, the average temperature is 18°C (65°F). Maximums can reach 34°C (94°F), and minimums can be as low as 6°C (42°F). This climate makes Altenahr an ideal destination for travelers seeking mild weather combined with the possibility of warmer days.

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

The chart illustrates August temperature patterns in Altenahr, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altenahr, August typically has an average temperature of 18°C (65°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (42°F).

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

August Precipitation in Altenahr

In Altenahr in August, the precipitation amount is 81 mm (3.2 in) spread over the course of 15 days.

August Precipitation Trends in Altenahr

The chart displays monthly precipitation patterns in Altenahr, 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 Altenahr, August typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 15 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 Altenahr

In Altenahr in August humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.

August Average Humidity in Altenahr

This chart illustrates the average monthly humidity levels in Altenahr, 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 Altenahr is approximately 71%, 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 Altenahr

In Altenahr in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Altenahr.

Maximum UV Index Levels in Altenahr for August

The chart shows the monthly maximum UV Index (UVI) for Altenahr 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 Altenahr typically reaches 7, which falls under the high exposure category.

Data source: Altenahr 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 Altenahr Compares to Other Months

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

This table compares monthly weather conditions in Altenahr, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	63 mm (2.5 inches)	91%	low
February Weather	4°C (39°F)	59 mm (2.3 inches)	90%	moderate
March Weather	6°C (43°F)	68 mm (2.7 inches)	87%	moderate
April Weather	9°C (49°F)	39 mm (1.5 inches)	84%	moderate
May Weather	13°C (55°F)	83 mm (3.3 inches)	77%	very high
June Weather	18°C (64°F)	86 mm (3.4 inches)	74%	very high
July Weather	18°C (65°F)	87 mm (3.4 inches)	72%	very high
August Weather	18°C (65°F)	81 mm (3.2 inches)	71%	high
September Weather	15°C (58°F)	53 mm (2.1 inches)	81%	high
October Weather	11°C (52°F)	61 mm (2.4 inches)	88%	moderate
November Weather	6°C (43°F)	48 mm (1.9 inches)	91%	low
December Weather	4°C (39°F)	90 mm (3.5 inches)	92%	low