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May Weather in Winchester, United States

Last updated: June 24, 2025

In May, the average temperature in Winchester, United States hovers around 21°C (70°F). However, you can expect a wide range, with minimums dipping to 6°C (43°F) and highs reaching up to 34°C (94°F). Prepare for some rain, as the area sees about 185 mm (7.3 in) of precipitation spread over 13 days. Additionally, the average humidity sits at a humid 83%, creating a lush and vibrant atmosphere.

May Temperature in Winchester

In May in Winchester, the average temperature is 21°C (70°F), with maximums reaching 34°C (94°F) and minimums dropping as low as 6°C (43°F). This varied climate makes it an ideal destination for travelers looking to experience a mix of warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Winchester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winchester, May typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec404254607079838176635145
Data source: Temperature data for Winchester 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 Winchester

In Winchester in May, the precipitation amount is 185 mm (7.3 in) spread over 13 days.

May Precipitation Trends in Winchester

The chart displays monthly precipitation patterns in Winchester, 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 Winchester, May typically receives around 185 mm (7.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec78731071721859894110941355254
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Winchester

In Winchester in May humidity is 83%. With an average temperature of 21°C (70°F), this humidity feels like you’re enveloped in a warm, tropical embrace, making it essential to stay hydrated and take breaks during your travels.

May Average Humidity in Winchester

This chart illustrates the average monthly humidity levels in Winchester, 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 Winchester is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Winchester

In Winchester 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 Winchester.

Maximum UV Index Levels in Winchester for May

The chart shows the monthly maximum UV Index (UVI) for Winchester 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 Winchester typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Winchester 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 Winchester Compares to Other Months

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

This table compares monthly weather conditions in Winchester, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)78 mm (3.1 inches)79%moderate
February Weather5°C (42°F)73 mm (2.9 inches)78%high
March Weather12°C (55°F)107 mm (4.2 inches)75%high
April Weather15°C (60°F)172 mm (6.8 inches)75%very high
May Weather21°C (70°F)185 mm (7.3 inches)83%very high
June Weather26°C (79°F)98 mm (3.8 inches)81%extreme
July Weather28°C (83°F)94 mm (3.7 inches)78%extreme
August Weather27°C (81°F)110 mm (4.3 inches)68%very high
September Weather25°C (76°F)94 mm (3.7 inches)64%very high
October Weather17°C (63°F)135 mm (5.3 inches)71%high
November Weather10°C (51°F)52 mm (2.0 inches)82%moderate
December Weather7°C (45°F)54 mm (2.1 inches)87%moderate

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