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May Weather in Bethesda, United Kingdom

Last updated: August 27, 2025

In Bethesda, United Kingdom, the average temperature in May hovers around 11°C (53°F), with a minimum dipping to -1°C (31°F) and a maximum soaring up to 28°C (82°F). Expect about 78 mm (3.1 in) of precipitation spread over 13 days, contributing to an average humidity of 79%. Embrace the seasonal variations while planning your activities!

May Temperature in Bethesda

In May in Bethesda, the average temperature is 11°C (53°F). Maximums can reach 28°C (82°F), while minimums can drop to as low as -1°C (31°F). When traveling during this month, be prepared for a wide range of temperatures and pack accordingly to ensure a comfortable stay.

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

The chart illustrates May temperature patterns in Bethesda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bethesda, May typically has an average temperature of 11°C (53°F), with highs reaching up to 28°C (82°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475258616056524643
Data source: Temperature data for Bethesda 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 Bethesda

In Bethesda in May, the precipitation amount is 78 mm (3.1 in) spread over 13 days.

May Precipitation Trends in Bethesda

The chart displays monthly precipitation patterns in Bethesda, 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 Bethesda, May typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec7810310558789893109101122103128
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Bethesda

In Bethesda 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 Bethesda

This chart illustrates the average monthly humidity levels in Bethesda, 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 Bethesda is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Bethesda

In Bethesda in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Bethesda.

Maximum UV Index Levels in Bethesda for May

The chart shows the monthly maximum UV Index (UVI) for Bethesda 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 Bethesda typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Bethesda 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 Bethesda Compares to Other Months

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

This table compares monthly weather conditions in Bethesda, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)78 mm (3.1 inches)89%low
February Weather6°C (43°F)103 mm (4.1 inches)88%low
March Weather7°C (44°F)105 mm (4.1 inches)86%moderate
April Weather9°C (48°F)58 mm (2.3 inches)84%moderate
May Weather11°C (53°F)78 mm (3.1 inches)79%high
June Weather15°C (58°F)98 mm (3.8 inches)81%very high
July Weather16°C (61°F)93 mm (3.7 inches)78%very high
August Weather15°C (60°F)109 mm (4.3 inches)79%high
September Weather14°C (57°F)100 mm (4.0 inches)85%moderate
October Weather11°C (52°F)122 mm (4.8 inches)90%moderate
November Weather8°C (46°F)103 mm (4.1 inches)91%low
December Weather6°C (44°F)128 mm (5.0 inches)89%low

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