May Weather in Winchester, United States

Last updated: June 24, 2025

In May, the average temperature in Winchester, United States hovers around 18°C (64°F), offering a pleasant climate. Expect a comfortable range with minimums dipping to 5°C (41°F) and maximums soaring to 34°C (94°F). During this month, anticipate about 20 mm (0.8 in) of precipitation spread over 4 days, and enjoy an average humidity of 46% for a refreshing experience.

May Temperature in Winchester

In May in Winchester, the average temperature is 18°C (64°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as 5°C (41°F). It's a great time to visit, as the weather offers a comfortable mix of warmth and cooler evenings for outdoor activities.

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 18°C (64°F), with highs reaching up to 34°C (94°F) and lows dropping to around 5°C (41°F).

Data source: Temperature data for Winchester generated using information from the Copernicus Climate Change Service.

May Precipitation in Winchester

In Winchester in May, the total precipitation amount is 20 mm (0.8 in) spread over a period of 4 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 20 mm (0.8 inches) of precipitation spread over approximately 4 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Winchester

In Winchester in May humidity is 46%. With an average temperature of 18°C (64°F), this humidity feels like a pleasant and comfortable experience for traveling, allowing for enjoyable outdoor activities without feeling overly sticky or oppressive.

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 46%, offering insight into how humid the weather typically is during this month.

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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	71 mm (2.8 inches)	72%	moderate
February Weather	11°C (52°F)	73 mm (2.9 inches)	77%	high
March Weather	12°C (54°F)	70 mm (2.8 inches)	67%	very high
April Weather	16°C (61°F)	31 mm (1.2 inches)	56%	very high
May Weather	18°C (64°F)	20 mm (0.8 inches)	46%	extreme
June Weather	22°C (73°F)	3 mm (0.1 inches)	48%	extreme
July Weather	26°C (79°F)	5 mm (0.2 inches)	46%	extreme
August Weather	26°C (80°F)	3 mm (0.1 inches)	42%	extreme
September Weather	24°C (75°F)	4 mm (0.2 inches)	52%	very high
October Weather	19°C (67°F)	13 mm (0.5 inches)	58%	high
November Weather	15°C (59°F)	30 mm (1.2 inches)	66%	moderate
December Weather	11°C (52°F)	66 mm (2.6 inches)	74%	moderate