January Weather in Bristol, United States

Last updated: June 24, 2025

In January, the average temperature in Bristol, United States hovers around 3°C (39°F). However, be prepared for a wide range, as temperatures can dip to a chilly -18°C (0°F) or rise to a warm 24°C (75°F). Expect 97 mm (3.8 in) of precipitation spread over 13 days, contributing to an average humidity of 87%.

January Temperature in Bristol

In January in Bristol, the average temperature is 3°C (39°F), with maximums reaching 24°C (75°F) and minimums as low as -18°C (0°F). This variation in temperature makes it essential for travelers to prepare for both chilly days and warmer spells, ensuring a comfortable and enjoyable trip.

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 3°C (39°F), with highs reaching up to 24°C (75°F) and lows dropping to around -18°C (0°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 precipitation amount is 97 mm (3.8 in) over the course of 13 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 97 mm (3.8 inches) of precipitation spread over approximately 13 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 87%. With an average temperature of 3°C (39°F), this humidity feels like a chilling blanket enveloping you, making travel uncomfortable as the damp air seeps into your clothes and chills your bones, turning even the briefest outings into a test of endurance.

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 87%, 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 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Bristol for better planning.

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 4, 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	3°C (39°F)	97 mm (3.8 inches)	87%	moderate
February Weather	7°C (44°F)	145 mm (5.7 inches)	87%	high
March Weather	9°C (49°F)	124 mm (4.9 inches)	86%	very high
April Weather	13°C (56°F)	129 mm (5.1 inches)	84%	very high
May Weather	18°C (66°F)	106 mm (4.2 inches)	83%	extreme
June Weather	22°C (71°F)	96 mm (3.8 inches)	83%	extreme
July Weather	24°C (76°F)	71 mm (2.8 inches)	79%	extreme
August Weather	23°C (74°F)	86 mm (3.4 inches)	66%	very high
September Weather	21°C (70°F)	80 mm (3.1 inches)	68%	very high
October Weather	16°C (60°F)	110 mm (4.3 inches)	78%	very high
November Weather	8°C (46°F)	78 mm (3.1 inches)	89%	moderate
December Weather	6°C (42°F)	123 mm (4.8 inches)	86%	moderate