January Weather in Brighton, United States

Last updated: June 24, 2025

The average temperature in Brighton, United States during January is -2°C (29°F), with temperatures dipping as low as -17°C (2°F) and peaking at 15°C (59°F). Expect a precipitation amount of 90 mm (3.6 in) over approximately 15 days, contributing to a high average humidity of 91%. Be prepared for chilly, damp conditions!

January Temperature in Brighton

In January in Brighton, the average temperature is -2°C (29°F). The maximum can reach 15°C (59°F), while the minimum can drop as low as -17°C (2°F). Travelers should be prepared for a wide range of temperatures, layering clothing accordingly to stay comfortable during their visit.

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

The chart illustrates January temperature patterns in Brighton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brighton, January typically has an average temperature of -2°C (29°F), with highs reaching up to 15°C (59°F) and lows dropping to around -17°C (2°F).

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

January Precipitation in Brighton

In Brighton in January, the total precipitation amount is 90 mm (3.6 in) over the course of 15 days.

January Precipitation Trends in Brighton

The chart displays monthly precipitation patterns in Brighton, 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 Brighton, January typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 15 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 Brighton

In Brighton in January, humidity is 91%. With an average temperature of -2°C (29°F), this humidity feels like a chilling embrace that can quickly sap your energy, making outdoor adventures uncomfortable and dampening the joy of exploration.

January Average Humidity in Brighton

This chart illustrates the average monthly humidity levels in Brighton, 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 Brighton is approximately 91%, 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 Brighton

In Brighton in January, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Brighton, you can visit Hourly UV Index in Brighton.

Maximum UV Index Levels in Brighton for January

The chart shows the monthly maximum UV Index (UVI) for Brighton 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 Brighton typically reaches 2, which falls under the low exposure category.

Data source: Brighton 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 Brighton Compares to Other Months

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

This table compares monthly weather conditions in Brighton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	90 mm (3.6 inches)	91%	low
February Weather	-1°C (30°F)	91 mm (3.6 inches)	91%	moderate
March Weather	2°C (35°F)	81 mm (3.2 inches)	88%	moderate
April Weather	6°C (44°F)	117 mm (4.6 inches)	88%	very high
May Weather	12°C (54°F)	100 mm (4.0 inches)	82%	very high
June Weather	18°C (64°F)	74 mm (2.9 inches)	79%	very high
July Weather	22°C (72°F)	130 mm (5.1 inches)	77%	very high
August Weather	22°C (72°F)	90 mm (3.5 inches)	72%	very high
September Weather	19°C (66°F)	77 mm (3.0 inches)	76%	high
October Weather	13°C (56°F)	159 mm (6.3 inches)	83%	moderate
November Weather	5°C (42°F)	107 mm (4.2 inches)	88%	moderate
December Weather	1°C (34°F)	107 mm (4.2 inches)	87%	low