January Weather in Bristol, United States

Last updated: June 24, 2025

In January, the average temperature in Bristol, United States is a comfortable 12°C (54°F). However, be prepared for a range that can dip to a chilly -6°C (21°F) or rise to a warm 27°C (81°F). Expect some rain as well, with an average precipitation of 84 mm (3.3 in) spread over 7 days, contributing to a generally high humidity level of 83%.

January Temperature in Bristol

In January in Bristol, the average temperature is 12°C (54°F). The maximum can reach 27°C (81°F), and the minimum can be as low as -6°C (21°F). This diverse range of temperatures makes it essential for travelers to pack for both warm and chilly conditions.

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

The chart illustrates January 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, January typically has an average temperature of 12°C (54°F), with highs reaching up to 27°C (81°F) and lows dropping to around -6°C (21°F).

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

January Precipitation in Bristol

In Bristol in January, the total precipitation amount is 84 mm (3.3 in) distributed over a span of 7 days.

January Precipitation Trends in Bristol

The chart displays monthly precipitation patterns in Bristol, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Bristol, January typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 7 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Bristol

In Bristol in January humidity is 83%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making outdoor exploration feel sticky and uncomfortable, which can dampen the excitement of traveling.

January Average Humidity in Bristol

This chart illustrates the average monthly humidity levels in Bristol, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Bristol is approximately 83%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Bristol

In Bristol in January, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Bristol.

Maximum UV Index Levels in Bristol for January

The chart shows the monthly maximum UV Index (UVI) for Bristol in January, 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 January, the maximum UV index in Bristol typically reaches 5, which falls under the moderate exposure category.

Data source: Bristol January 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 January 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 January’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 January’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