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May Weather in Saint George, United States

Last updated: June 24, 2025

In May, the average temperature in Saint George, United States hovers around 11°C (53°F), offering a mild climate for visitors. Expect a low of 2°C (36°F) and a warm high of 26°C (80°F). With approximately 83 mm (3.3 in) of precipitation spread over 12 days, it’s wise to carry an umbrella. Additionally, the air remains comfortably humid at an average of 79%, contributing to the region's lush ambiance.

May Temperature in Saint George

In May in Saint George, the average temperature is 11°C (53°F), with maximums reaching up to 26°C (80°F) and minimums dropping as low as 2°C (36°F). This comfortable range makes it an ideal time for travelers to explore the area's outdoor activities and attractions.

May Weather in Saint George: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Saint George, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint George, May typically has an average temperature of 11°C (53°F), with highs reaching up to 26°C (80°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec282934435262676862534132
Data source: Temperature data for Saint George 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 Saint George

In Saint George in May, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.

May Precipitation Trends in Saint George

The chart displays monthly precipitation patterns in Saint George, 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 Saint George, May typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec94967813383721018085133116127
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Saint George

In Saint George in May, humidity is 79%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that can make traveling uncomfortable, as the cool air clings to your skin and dampens your clothes, leaving you seeking shelter and a warm drink more often than not.

May Average Humidity in Saint George

This chart illustrates the average monthly humidity levels in Saint George, 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 Saint George is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%84%79%79%86%85%83%80%77%80%81%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Saint George

In Saint George in May, 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 Saint George.

Maximum UV Index Levels in Saint George for May

The chart shows the monthly maximum UV Index (UVI) for Saint George 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 Saint George typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910987532
Data source: Saint George 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 Saint George Compares to Other Months

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

This table compares monthly weather conditions in Saint George, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (28°F)94 mm (3.7 inches)85%low
February Weather-2°C (29°F)96 mm (3.8 inches)86%moderate
March Weather1°C (34°F)78 mm (3.1 inches)84%moderate
April Weather6°C (44°F)133 mm (5.2 inches)79%high
May Weather11°C (53°F)83 mm (3.3 inches)79%very high
June Weather17°C (62°F)72 mm (2.8 inches)86%very high
July Weather20°C (68°F)101 mm (4.0 inches)85%very high
August Weather20°C (68°F)80 mm (3.1 inches)83%very high
September Weather17°C (62°F)85 mm (3.3 inches)80%high
October Weather12°C (53°F)133 mm (5.2 inches)77%moderate
November Weather5°C (41°F)116 mm (4.6 inches)80%moderate
December Weather0°C (32°F)127 mm (5.0 inches)81%low

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