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May Weather in Rio Vista, United States

Last updated: June 24, 2025

In May, the average temperature in Rio Vista, United States hovers around 24°C (75°F), creating a pleasant climate for outdoor activities. However, temperatures can vary significantly, with a minimum of 7°C (45°F) and soaring up to a maximum of 36°C (97°F). Be prepared for some rain, as the region receives an average of 174 mm (6.9 in) of precipitation spread over 13 days. With an average humidity of 81%, the air can feel quite tropical, so don't forget to stay hydrated!

May Temperature in Rio Vista

In May in Rio Vista, the average temperature is 24°C (75°F). Maximums can reach 36°C (97°F) and minimums can be as low as 7°C (45°F). Be prepared for warm days and cool nights when traveling to Rio Vista this May.

May Weather in Rio Vista: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Rio Vista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rio Vista, May typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (97°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec485061667581858579685752
Data source: Temperature data for Rio Vista 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 Rio Vista

In Rio Vista in May, the precipitation amount is 174 mm (6.9 in), occurring over the course of 13 days.

May Precipitation Trends in Rio Vista

The chart displays monthly precipitation patterns in Rio Vista, 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 Rio Vista, May typically receives around 174 mm (6.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec56908599174816298711344556
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Rio Vista

In Rio Vista in May humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

May Average Humidity in Rio Vista

This chart illustrates the average monthly humidity levels in Rio Vista, 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 Rio Vista is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%78%78%81%78%73%66%65%72%82%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Rio Vista

In Rio Vista 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 Rio Vista.

Maximum UV Index Levels in Rio Vista for May

The chart shows the monthly maximum UV Index (UVI) for Rio Vista 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 Rio Vista typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Rio Vista 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 Rio Vista Compares to Other Months

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

This table compares monthly weather conditions in Rio Vista, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)56 mm (2.2 inches)80%moderate
February Weather10°C (50°F)90 mm (3.5 inches)79%high
March Weather16°C (61°F)85 mm (3.4 inches)78%very high
April Weather19°C (66°F)99 mm (3.9 inches)78%very high
May Weather24°C (75°F)174 mm (6.9 inches)81%extreme
June Weather27°C (82°F)81 mm (3.2 inches)78%extreme
July Weather29°C (85°F)62 mm (2.5 inches)73%extreme
August Weather29°C (85°F)98 mm (3.9 inches)66%extreme
September Weather26°C (80°F)71 mm (2.8 inches)65%very high
October Weather20°C (69°F)134 mm (5.3 inches)72%very high
November Weather14°C (57°F)45 mm (1.8 inches)82%high
December Weather11°C (52°F)56 mm (2.2 inches)87%moderate

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