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May Weather in Forestville, United States

Last updated: June 24, 2025

In Forestville, United States, the average temperature in May hovers around 12°C (53°F). Expect a minimum of 0°C (32°F) and a maximum of 25°C (77°F). Be prepared for some rain, as 117 mm (4.6 in) of precipitation can be expected over approximately 15 days. With an average humidity of 82%, you might want to keep an umbrella handy!

May Temperature in Forestville

In May in Forestville, the average temperature is 12°C (53°F). Maximum temperatures can reach up to 25°C (77°F), while minimum temperatures can dip as low as 0°C (32°F). Be sure to pack layers for your trip, as the temperature can vary significantly throughout the day.

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

The chart illustrates May temperature patterns in Forestville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Forestville, May typically has an average temperature of 12°C (53°F), with highs reaching up to 25°C (77°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec282934425364717165554135
Data source: Temperature data for Forestville 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 Forestville

In Forestville in May, the total precipitation amount is 117 mm (4.6 in), occurring over the course of 15 days.

May Precipitation Trends in Forestville

The chart displays monthly precipitation patterns in Forestville, 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 Forestville, May typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec1061081011251171131359186169141139
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Forestville

In Forestville in May, humidity is 82%. With an average temperature of 12°C (53°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky, as you navigate through the thick air that weighs heavily on your skin.

May Average Humidity in Forestville

This chart illustrates the average monthly humidity levels in Forestville, 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 Forestville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Forestville

In Forestville 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 Forestville.

Maximum UV Index Levels in Forestville for May

The chart shows the monthly maximum UV Index (UVI) for Forestville 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 Forestville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098642
Data source: Forestville 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 Forestville Compares to Other Months

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

This table compares monthly weather conditions in Forestville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)106 mm (4.2 inches)91%moderate
February Weather-1°C (30°F)108 mm (4.3 inches)91%moderate
March Weather1°C (34°F)101 mm (4.0 inches)88%high
April Weather5°C (42°F)125 mm (4.9 inches)88%very high
May Weather12°C (53°F)117 mm (4.6 inches)82%very high
June Weather18°C (64°F)113 mm (4.4 inches)79%very high
July Weather22°C (71°F)135 mm (5.3 inches)77%very high
August Weather21°C (71°F)91 mm (3.6 inches)72%very high
September Weather19°C (66°F)86 mm (3.4 inches)76%very high
October Weather13°C (56°F)169 mm (6.7 inches)83%high
November Weather5°C (42°F)141 mm (5.5 inches)88%moderate
December Weather1°C (35°F)139 mm (5.5 inches)87%low

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