May Weather in Charlton, United Kingdom

Last updated: August 27, 2025

The average temperature in Charlton, United Kingdom during May is a comfortable 12°C (54°F). However, temperatures can vary, with minimums dipping to 0°C (32°F) and maximums reaching 26°C (78°F). This month typically sees precipitation of about 74 mm (2.9 in) spread over 11 days, and the average humidity hovers around 79%, creating a uniquely refreshing climate.

May Temperature in Charlton

In May in Charlton, the average temperature is 12°C (54°F). The maximum can reach 26°C (78°F), while the minimum can drop as low as 0°C (32°F). It's advisable to prepare for variable weather conditions when traveling during this time.

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

The chart illustrates May 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, May typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (78°F) and lows dropping to around 0°C (32°F).

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

May Precipitation in Charlton

In Charlton in May, the precipitation amount is 74 mm (2.9 in) spread over the course of 11 days.

May Precipitation Trends in Charlton

The chart displays monthly precipitation patterns in Charlton, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Charlton, May typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Charlton

In Charlton in May, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

May Average Humidity in Charlton

This chart illustrates the average monthly humidity levels in Charlton, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Charlton is approximately 79%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Charlton

In Charlton in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Charlton.

Maximum UV Index Levels in Charlton for May

The chart shows the monthly maximum UV Index (UVI) for Charlton in May, 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 May, the maximum UV index in Charlton typically reaches 7, which falls under the high exposure category.

Data source: Charlton May 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 May 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 May’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 May’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