May Weather in Bristol, United States

Last updated: June 24, 2025

In May, the average temperature in Bristol, United States hovers around 18°C (64°F). You can expect a minimum temperature of 2°C (36°F) and a maximum reaching up to 35°C (94°F). During this month, precipitation averages 124 mm (4.9 in) spread over about 12 days, contributing to an average humidity of 74%. Prepare accordingly for a variety of weather conditions!

May Temperature in Bristol

In May in Bristol, the average temperature is 18°C (64°F). The maximum can reach 35°C (94°F), and the minimum can be as low as 2°C (36°F). This makes it a great time for travelers to experience a pleasant climate while enjoying outdoor activities.

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

The chart illustrates May temperature patterns in Bristol, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bristol, May typically has an average temperature of 18°C (64°F), with highs reaching up to 35°C (94°F) and lows dropping to around 2°C (36°F).

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

May Precipitation in Bristol

In Bristol in May, the total precipitation amount is 124 mm (4.9 in) over a span of 12 days.

May Precipitation Trends in Bristol

The chart displays monthly precipitation patterns in Bristol, 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 Bristol, May typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 12 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 Bristol

In Bristol in May humidity is 74%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it ideal for leisurely strolls but potentially uncomfortable for extended outdoor activities.

May Average Humidity in Bristol

This chart illustrates the average monthly humidity levels in Bristol, 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 Bristol is approximately 74%, 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 Bristol

In Bristol 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 Bristol.

Maximum UV Index Levels in Bristol for May

The chart shows the monthly maximum UV Index (UVI) for Bristol 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 Bristol typically reaches 10, which falls under the very high exposure category.

Data source: Bristol 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 Bristol Compares to Other Months

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

This table compares monthly weather conditions in Bristol, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	64 mm (2.5 inches)	83%	moderate
February Weather	4°C (39°F)	108 mm (4.2 inches)	82%	moderate
March Weather	7°C (44°F)	109 mm (4.3 inches)	81%	high
April Weather	12°C (54°F)	104 mm (4.1 inches)	79%	very high
May Weather	18°C (64°F)	124 mm (4.9 inches)	74%	very high
June Weather	23°C (74°F)	101 mm (4.0 inches)	77%	very high
July Weather	26°C (79°F)	136 mm (5.4 inches)	76%	very high
August Weather	25°C (77°F)	137 mm (5.4 inches)	77%	very high
September Weather	22°C (71°F)	89 mm (3.5 inches)	74%	very high
October Weather	16°C (62°F)	119 mm (4.7 inches)	75%	high
November Weather	8°C (47°F)	83 mm (3.3 inches)	80%	moderate
December Weather	4°C (40°F)	104 mm (4.1 inches)	81%	moderate