January Weather in Charlton, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in Charlton, United Kingdom hovers around 5°C (41°F), with a minimum dipping to -4°C (25°F) and a maximum peaking at 14°C (57°F). Expect to see about 56 mm (2.2 in) of precipitation spread over 10 days, accompanied by a high average humidity of 91%. Prepare for a chilly and damp month!

January Temperature in Charlton

In January in Charlton, the average temperature is 5°C (41°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -4°C (25°F). Be sure to pack warm clothing and be prepared for chilly weather if you're planning to travel during this time.

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

The chart illustrates January temperature patterns in Charlton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Charlton, January typically has an average temperature of 5°C (41°F), with highs reaching up to 14°C (57°F) and lows dropping to around -4°C (25°F).

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

January Precipitation in Charlton

In Charlton in January, the precipitation amount is 56 mm (2.2 in) over the course of 10 days.

January Precipitation Trends in Charlton

The chart displays monthly precipitation patterns in Charlton, 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 Charlton, January typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 10 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 Charlton

In Charlton in January humidity is 91%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling outdoors a rather uncomfortable experience unless you're dressed warmly and prepared for the moist air that clings to your skin.

January Average Humidity in Charlton

This chart illustrates the average monthly humidity levels in Charlton, 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 Charlton 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 Charlton

In Charlton in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Charlton.

Maximum UV Index Levels in Charlton for January

The chart shows the monthly maximum UV Index (UVI) for Charlton 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 Charlton typically reaches 1, which falls under the low exposure category.

Data source: Charlton 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 Charlton Compares to Other Months

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

This table compares monthly weather conditions in Charlton, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	56 mm (2.2 inches)	91%	low
February Weather	6°C (43°F)	62 mm (2.4 inches)	89%	low
March Weather	7°C (45°F)	69 mm (2.7 inches)	86%	moderate
April Weather	9°C (49°F)	45 mm (1.8 inches)	85%	moderate
May Weather	12°C (54°F)	74 mm (2.9 inches)	79%	high
June Weather	16°C (61°F)	72 mm (2.8 inches)	80%	very high
July Weather	18°C (64°F)	63 mm (2.5 inches)	71%	very high
August Weather	17°C (62°F)	74 mm (2.9 inches)	76%	high
September Weather	14°C (58°F)	52 mm (2.1 inches)	82%	high
October Weather	11°C (53°F)	103 mm (4.0 inches)	90%	moderate
November Weather	8°C (46°F)	62 mm (2.4 inches)	92%	low
December Weather	6°C (44°F)	89 mm (3.5 inches)	92%	low