March Weather in Bristol, United States

Last updated: June 24, 2025

In Bristol, United States, the average temperature in March is a comfortable 17°C (64°F). However, be prepared for some variability, as temperatures can dip to a chilly -1°C (31°F) or soar to a warm 32°C (90°F). This month sees an average precipitation of 57 mm (2.2 in) spread over 7 days, and with an average humidity of 79%, expect a moderately humid atmosphere.

March Temperature in Bristol

In March in Bristol, the average temperature is 17°C (64°F). The maximum can reach 32°C (90°F), while the minimum can drop as low as -1°C (31°F). Be prepared for both warm days and chilly nights during your travels!

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

The chart illustrates March 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, March typically has an average temperature of 17°C (64°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (31°F).

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

March Precipitation in Bristol

In Bristol in March, the precipitation amount is 57 mm (2.2 in) over the course of 7 days.

March Precipitation Trends in Bristol

The chart displays monthly precipitation patterns in Bristol, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Bristol, March typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 7 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Bristol

In Bristol in March humidity is 79%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket wrapped around you, making outdoor activities feel a bit muggy and requiring frequent hydration as you explore the sights.

March Average Humidity in Bristol

This chart illustrates the average monthly humidity levels in Bristol, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Bristol is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Bristol

In Bristol in March, 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 Bristol.

Maximum UV Index Levels in Bristol for March

The chart shows the monthly maximum UV Index (UVI) for Bristol in March, 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 March, the maximum UV index in Bristol typically reaches 9, which falls under the very high exposure category.

Data source: Bristol March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	84 mm (3.3 inches)	83%	moderate
February Weather	15°C (60°F)	122 mm (4.8 inches)	82%	very high
March Weather	17°C (64°F)	57 mm (2.2 inches)	79%	very high
April Weather	20°C (68°F)	107 mm (4.2 inches)	77%	very high
May Weather	24°C (75°F)	103 mm (4.1 inches)	74%	extreme
June Weather	26°C (80°F)	181 mm (7.1 inches)	70%	extreme
July Weather	27°C (81°F)	173 mm (6.8 inches)	78%	extreme
August Weather	27°C (81°F)	191 mm (7.5 inches)	78%	extreme
September Weather	26°C (79°F)	152 mm (6.0 inches)	79%	very high
October Weather	23°C (73°F)	100 mm (3.9 inches)	74%	very high
November Weather	16°C (60°F)	46 mm (1.8 inches)	83%	high
December Weather	13°C (56°F)	126 mm (5.0 inches)	86%	moderate