August Weather in Arth, Switzerland

Last updated: August 27, 2025

In August, the average temperature in Arth, Switzerland is a comfortable 17°C (63°F). Expect minimums dipping to 7°C (45°F) and maximums reaching up to 29°C (84°F). With an average humidity of 80%, it's a humid month, along with about 203 mm (8.0 in) of precipitation spread over 18 days. Pack accordingly to enjoy the weather!

August Temperature in Arth

In August in Arth, the average temperature is 17°C (63°F). The maximum can reach 29°C (84°F), while the minimum can be as low as 7°C (45°F). This makes it a great time for travelers to enjoy mild weather and engage in outdoor activities.

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

The chart illustrates August temperature patterns in Arth, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arth, August typically has an average temperature of 17°C (63°F), with highs reaching up to 29°C (84°F) and lows dropping to around 7°C (45°F).

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

August Precipitation in Arth

In Arth in August, the precipitation amount is 203 mm (8.0 in) over the course of 18 days.

August Precipitation Trends in Arth

The chart displays monthly precipitation patterns in Arth, 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 Arth, August typically receives around 203 mm (8.0 inches) of precipitation spread over approximately 18 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Arth

In Arth in August humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

August Average Humidity in Arth

This chart illustrates the average monthly humidity levels in Arth, 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 Arth is approximately 80%, 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 Arth

In Arth in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Arth.

Maximum UV Index Levels in Arth for August

The chart shows the monthly maximum UV Index (UVI) for Arth 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 Arth typically reaches 8, which falls under the very high exposure category.

Data source: Arth 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 Arth Compares to Other Months

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

This table compares monthly weather conditions in Arth, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	144 mm (5.7 inches)	92%	low
February Weather	1°C (34°F)	106 mm (4.2 inches)	89%	moderate
March Weather	3°C (38°F)	127 mm (5.0 inches)	87%	moderate
April Weather	7°C (45°F)	104 mm (4.1 inches)	84%	high
May Weather	10°C (51°F)	163 mm (6.4 inches)	80%	very high
June Weather	16°C (60°F)	189 mm (7.4 inches)	82%	very high
July Weather	17°C (63°F)	190 mm (7.5 inches)	83%	very high
August Weather	17°C (63°F)	203 mm (8.0 inches)	80%	very high
September Weather	13°C (56°F)	146 mm (5.8 inches)	83%	high
October Weather	9°C (49°F)	165 mm (6.5 inches)	90%	moderate
November Weather	4°C (39°F)	102 mm (4.0 inches)	88%	moderate
December Weather	1°C (33°F)	171 mm (6.7 inches)	90%	low