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May Weather in Glen Ellen, United States

Last updated: June 24, 2025

In Glen Ellen, United States, the average temperature in May hovers around 17°C (62°F). During this month, temperatures can range from a cool 5°C (41°F) to a warm 34°C (93°F). Expect some light showers with an average precipitation of 21 mm (0.8 in) spanning 3 days, all while enjoying a relatively high average humidity of 80%.

May Temperature in Glen Ellen

In May in Glen Ellen, the average temperature is 17°C (62°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as 5°C (41°F). This range of temperatures makes Glen Ellen a pleasant destination for travelers seeking a moderate climate and the opportunity to enjoy both warm days and cooler evenings.

May Weather in Glen Ellen: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Glen Ellen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Ellen, May typically has an average temperature of 17°C (62°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec505253586267686867635449
Data source: Temperature data for Glen Ellen 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 Glen Ellen

In Glen Ellen in May, the precipitation amount is 21 mm (0.8 in) over a period of 3 days.

May Precipitation Trends in Glen Ellen

The chart displays monthly precipitation patterns in Glen Ellen, 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 Glen Ellen, May typically receives around 21 mm (0.8 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec1251278436211101335194
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Glen Ellen

In Glen Ellen in May, humidity is 80%. With an average temperature of 17°C (62°F), this humidity feels like a heavy blanket wrapping around you, making travel sticky and uncomfortable, and often leaving you longing for a refreshing breeze.

May Average Humidity in Glen Ellen

This chart illustrates the average monthly humidity levels in Glen Ellen, 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 Glen Ellen is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%83%80%80%76%70%66%68%72%84%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Glen Ellen

In Glen Ellen 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 Glen Ellen.

Maximum UV Index Levels in Glen Ellen for May

The chart shows the monthly maximum UV Index (UVI) for Glen Ellen 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 Glen Ellen typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Glen Ellen 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 Glen Ellen Compares to Other Months

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

This table compares monthly weather conditions in Glen Ellen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)125 mm (4.9 inches)86%moderate
February Weather11°C (52°F)127 mm (5.0 inches)84%moderate
March Weather12°C (54°F)84 mm (3.3 inches)83%high
April Weather14°C (58°F)36 mm (1.4 inches)80%very high
May Weather17°C (62°F)21 mm (0.8 inches)80%very high
June Weather20°C (68°F)1 mm (0.1 inches)76%extreme
July Weather20°C (68°F)0 mm (0.0 inches)70%extreme
August Weather20°C (68°F)0 mm (0.0 inches)66%very high
September Weather20°C (68°F)1 mm (0.0 inches)68%very high
October Weather17°C (63°F)33 mm (1.3 inches)72%high
November Weather12°C (55°F)50 mm (2.0 inches)84%moderate
December Weather10°C (50°F)94 mm (3.7 inches)84%moderate

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