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May Weather in Vienna, United States

Last updated: June 24, 2025

In May, the average temperature in Vienna, United States hovers around 19°C (66°F), with a minimum dipping to 4°C (39°F) and a maximum soaring to 34°C (94°F). Expect about 166 mm (6.5 in) of precipitation spread over 15 days, contributing to a high average humidity of 82%. Whether you're planning outdoor activities or cozy indoor escapes, be prepared for a mix of warm days and occasional rain!

May Temperature in Vienna

In May in Vienna, the average temperature is 19°C (66°F). Maximums can reach 34°C (94°F), while minimums can drop to as low as 4°C (39°F). This range of temperatures makes it essential for travelers to pack both lightweight clothing for warm days and layers for cooler evenings.

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 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec333648556676807672594540
Data source: Temperature data for Vienna generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Vienna

In Vienna in May, the total precipitation amount is 166 mm (6.5 in) spread across 15 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 166 mm (6.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7576129129166879795511026248
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Vienna

In Vienna in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

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.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
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 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)75 mm (3.0 inches)82%moderate
February Weather2°C (36°F)76 mm (3.0 inches)80%moderate
March Weather9°C (48°F)129 mm (5.1 inches)80%high
April Weather13°C (55°F)129 mm (5.1 inches)80%very high
May Weather19°C (66°F)166 mm (6.5 inches)82%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (80°F)97 mm (3.8 inches)81%extreme
August Weather25°C (77°F)95 mm (3.7 inches)80%very high
September Weather22°C (73°F)51 mm (2.0 inches)76%very high
October Weather15°C (59°F)102 mm (4.0 inches)76%high
November Weather7°C (45°F)62 mm (2.4 inches)85%moderate
December Weather4°C (40°F)47 mm (1.9 inches)86%moderate

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