August Weather in Vionnaz, Switzerland

Last updated: August 27, 2025

In Vionnaz, Switzerland, the average temperature in August hovers around 14°C (58°F), with a minimum dipping to 3°C (37°F) and a potential maximum reaching 27°C (81°F). Expect a precipitation amount of 189 mm (7.4 in) over 16 days, coupled with an average humidity of 77%, making for a moist and temperate climate.

August Temperature in Vionnaz

In August in Vionnaz, the average temperature is 14°C (58°F). Maximums can reach 27°C (81°F) and minimums can be as low as 3°C (37°F). It's a great time to explore Vionnaz with mild weather, making outdoor activities enjoyable.

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

The chart illustrates August temperature patterns in Vionnaz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vionnaz, August typically has an average temperature of 14°C (58°F), with highs reaching up to 27°C (81°F) and lows dropping to around 3°C (37°F).

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

August Precipitation in Vionnaz

In Vionnaz in August, the precipitation amount is 189 mm (7.4 in) occurring over the course of 16 days.

August Precipitation Trends in Vionnaz

The chart displays monthly precipitation patterns in Vionnaz, 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 Vionnaz, August typically receives around 189 mm (7.4 inches) of precipitation spread over approximately 16 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 Vionnaz

In Vionnaz in August, humidity is 77%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making traveling feel sticky and heavy, yet still manageable as you explore the sights.

August Average Humidity in Vionnaz

This chart illustrates the average monthly humidity levels in Vionnaz, 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 Vionnaz is approximately 77%, 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 Vionnaz

In Vionnaz 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 Vionnaz.

Maximum UV Index Levels in Vionnaz for August

The chart shows the monthly maximum UV Index (UVI) for Vionnaz 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 Vionnaz typically reaches 9, which falls under the very high exposure category.

Data source: Vionnaz 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 Vionnaz Compares to Other Months

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

This table compares monthly weather conditions in Vionnaz, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	138 mm (5.4 inches)	91%	low
February Weather	-2°C (29°F)	115 mm (4.5 inches)	89%	moderate
March Weather	1°C (34°F)	142 mm (5.6 inches)	87%	high
April Weather	5°C (41°F)	90 mm (3.5 inches)	84%	high
May Weather	8°C (47°F)	211 mm (8.3 inches)	80%	very high
June Weather	13°C (56°F)	211 mm (8.3 inches)	82%	very high
July Weather	15°C (59°F)	206 mm (8.1 inches)	82%	very high
August Weather	14°C (58°F)	189 mm (7.4 inches)	77%	very high
September Weather	11°C (52°F)	120 mm (4.7 inches)	81%	high
October Weather	7°C (44°F)	127 mm (5.0 inches)	89%	moderate
November Weather	1°C (33°F)	105 mm (4.1 inches)	89%	moderate
December Weather	-4°C (24°F)	228 mm (9.0 inches)	91%	low