January Weather in Chichester, United States

Last updated: June 24, 2025

In Chichester, United States, the average temperature in January hovers around -4°C (25°F). While you may experience a chilly minimum of -26°C (-14°F), the mercury can also rise to a maximum of 17°C (63°F). Expect about 72 mm (2.8 in) of precipitation over 8 days, contributing to an average humidity level of 86%. Stay cozy and prepared!

January Temperature in Chichester

In January in Chichester, the average temperature is -4°C (25°F). Maximum temperatures can reach 17°C (63°F), while minimums can drop as low as -26°C (-14°F). Despite the cold, this month offers a unique opportunity for travelers to experience Chichester's winter charm and enjoy activities like skiing and ice skating.

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

The chart illustrates January temperature patterns in Chichester, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chichester, January typically has an average temperature of -4°C (25°F), with highs reaching up to 17°C (63°F) and lows dropping to around -26°C (-14°F).

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

January Precipitation in Chichester

In Chichester in January, the precipitation amount is 72 mm (2.8 in) over the course of 8 days.

January Precipitation Trends in Chichester

The chart displays monthly precipitation patterns in Chichester, 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 Chichester, January typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 8 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 Chichester

In Chichester in January, humidity is 86%. With an average temperature of -4°C (25°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities feel more strenuous and less enjoyable for traveling.

January Average Humidity in Chichester

This chart illustrates the average monthly humidity levels in Chichester, 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 Chichester is approximately 86%, 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 Chichester

In Chichester in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Chichester, you can check the information here.

Maximum UV Index Levels in Chichester for January

The chart shows the monthly maximum UV Index (UVI) for Chichester 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 Chichester typically reaches 3, which falls under the moderate exposure category.

Data source: Chichester 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 Chichester Compares to Other Months

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

This table compares monthly weather conditions in Chichester, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	72 mm (2.8 inches)	86%	moderate
February Weather	-2°C (28°F)	83 mm (3.3 inches)	84%	moderate
March Weather	1°C (34°F)	78 mm (3.1 inches)	82%	moderate
April Weather	7°C (46°F)	129 mm (5.1 inches)	80%	very high
May Weather	14°C (57°F)	75 mm (3.0 inches)	72%	very high
June Weather	20°C (68°F)	84 mm (3.3 inches)	72%	very high
July Weather	23°C (73°F)	139 mm (5.5 inches)	67%	very high
August Weather	22°C (71°F)	86 mm (3.4 inches)	66%	very high
September Weather	18°C (64°F)	77 mm (3.0 inches)	71%	high
October Weather	11°C (53°F)	126 mm (5.0 inches)	78%	moderate
November Weather	4°C (39°F)	106 mm (4.2 inches)	84%	moderate
December Weather	-2°C (29°F)	118 mm (4.6 inches)	81%	low