May Weather in Vienna, United States

Last updated: June 24, 2025

In Vienna, United States, the average temperature in May is a comfortable 20°C (68°F). Expect a minimum temperature of 5°C (41°F) and the pleasant maximum reaching up to 33°C (91°F). However, be prepared for some rain, as there's an average precipitation of 147 mm (5.8 in) spread over about 14 days. With an average humidity of 82%, the atmosphere will feel quite tropical!

May Temperature in Vienna

In May in Vienna, the average temperature is 20°C (68°F). Maximums can reach 33°C (91°F) and minimums can be as low as 5°C (41°F). Be prepared for a range of temperatures and pack accordingly to enjoy your travels!

May Weather in Vienna: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Vienna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vienna, May typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 5°C (41°F).

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

May Precipitation in Vienna

In Vienna in May, the total precipitation amount is 147 mm (5.8 in) over the course of 14 days.

May Precipitation Trends in Vienna

The chart displays monthly precipitation patterns in Vienna, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Vienna, May typically receives around 147 mm (5.8 inches) of precipitation spread over approximately 14 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Vienna

In Vienna in May humidity is 82%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes traveling a bit sluggish but surprisingly refreshing, as long as you take breaks in shaded areas to cool off.

May Average Humidity in Vienna

This chart illustrates the average monthly humidity levels in Vienna, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Vienna is approximately 82%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Vienna

In Vienna in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Vienna.

Maximum UV Index Levels in Vienna for May

The chart shows the monthly maximum UV Index (UVI) for Vienna in May, 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 May, the maximum UV index in Vienna typically reaches 11, which falls under the extreme exposure category.

Data source: Vienna May 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 May Weather in Vienna Compares to Other Months

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

This table compares monthly weather conditions in Vienna, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	102 mm (4.0 inches)	86%	moderate
February Weather	4°C (39°F)	126 mm (5.0 inches)	84%	moderate
March Weather	10°C (49°F)	153 mm (6.0 inches)	84%	high
April Weather	14°C (57°F)	140 mm (5.5 inches)	80%	very high
May Weather	20°C (68°F)	147 mm (5.8 inches)	82%	extreme
June Weather	25°C (77°F)	108 mm (4.3 inches)	83%	extreme
July Weather	27°C (80°F)	101 mm (4.0 inches)	79%	very high
August Weather	25°C (77°F)	91 mm (3.6 inches)	76%	very high
September Weather	23°C (73°F)	72 mm (2.9 inches)	75%	very high
October Weather	16°C (61°F)	132 mm (5.2 inches)	74%	high
November Weather	8°C (46°F)	96 mm (3.8 inches)	85%	moderate
December Weather	5°C (42°F)	91 mm (3.6 inches)	88%	moderate