May Weather in Westbrook, United States

Last updated: June 24, 2025

In May, the average temperature in Westbrook, United States hovers around 15°C (59°F). Expect a chill at times, with minimum temperatures dipping to as low as 0°C (33°F), while warm spells can push the mercury up to 34°C (94°F). Rainfall is likely, with 127 mm (5.0 in) expected over 13 days, contributing to an average humidity of 74%. Enjoy the dynamic weather!

May Temperature in Westbrook

In May in Westbrook, the average temperature is 15°C (59°F). The maximum can reach 34°C (94°F), and the minimum can be as low as 0°C (33°F). It's advisable to pack layers to stay comfortable during your travels, as temperatures can vary significantly throughout the day.

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

The chart illustrates May temperature patterns in Westbrook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westbrook, May typically has an average temperature of 15°C (59°F), with highs reaching up to 34°C (94°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec171633435872737064473425
Data source: Temperature data for Westbrook 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 Westbrook

In Westbrook in May, the total precipitation amount is 127 mm (5.0 in) spread over 13 days.

May Precipitation Trends in Westbrook

The chart displays monthly precipitation patterns in Westbrook, 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 Westbrook, May typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec29286686127124119124110963142
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Westbrook

In Westbrook in May, humidity is 74%. With an average temperature of 15°C (59°F), this humidity feels like traveling through a warm, sticky blanket that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to seek out shaded areas or cool breezes.

May Average Humidity in Westbrook

This chart illustrates the average monthly humidity levels in Westbrook, 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 Westbrook is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%84%75%79%74%81%82%80%75%77%85%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Westbrook

In Westbrook 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 Westbrook.

Maximum UV Index Levels in Westbrook for May

The chart shows the monthly maximum UV Index (UVI) for Westbrook 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 Westbrook typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35689101098532
Data source: Westbrook 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 Westbrook Compares to Other Months

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

This table compares monthly weather conditions in Westbrook, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)29 mm (1.1 inches)80%moderate
February Weather-9°C (17°F)28 mm (1.1 inches)84%moderate
March Weather0°C (33°F)66 mm (2.6 inches)75%high
April Weather6°C (43°F)86 mm (3.4 inches)79%very high
May Weather15°C (59°F)127 mm (5.0 inches)74%very high
June Weather22°C (72°F)124 mm (4.9 inches)81%very high
July Weather23°C (74°F)119 mm (4.7 inches)82%very high
August Weather21°C (70°F)124 mm (4.9 inches)80%very high
September Weather18°C (64°F)110 mm (4.3 inches)75%very high
October Weather9°C (48°F)96 mm (3.8 inches)77%moderate
November Weather1°C (34°F)31 mm (1.2 inches)85%moderate
December Weather-4°C (25°F)42 mm (1.6 inches)83%low

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