April Weather in London, United States

Last updated: June 24, 2025

In London, United States, the average temperature in April hovers around 15°C (60°F), with a minimum dipping to 0°C (32°F) and a maximum peaking at 32°C (89°F). Expect 150 mm (5.9 in) of precipitation spread over 11 days, contributing to an average humidity level of 78%. Enjoy the varied climate, but don't forget your umbrella!

April Temperature in London

In April in London, the average temperature is 15°C (60°F). Maximum temperatures can reach 32°C (89°F), while minimums can drop to as low as 0°C (32°F). Be prepared for a wide range of weather conditions when traveling during this month.

April Weather in London: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in London, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In London, April typically has an average temperature of 15°C (60°F), with highs reaching up to 32°C (89°F) and lows dropping to around 0°C (32°F).

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

April Precipitation in London

In London in April, the total precipitation amount reaches 150 mm (5.9 in) over the course of 11 days.

April Precipitation Trends in London

The chart displays monthly precipitation patterns in London, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In London, April typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 11 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in London

In London in April, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

April Average Humidity in London

This chart illustrates the average monthly humidity levels in London, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in London is approximately 78%, offering insight into how humid the weather typically is during this month.

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

April UV Index in London

In London in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in London.

Maximum UV Index Levels in London for April

The chart shows the monthly maximum UV Index (UVI) for London in April, 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 April, the maximum UV index in London typically reaches 10, which falls under the very high exposure category.

Data source: London April 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 April Weather in London Compares to Other Months

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

This table compares monthly weather conditions in London, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	88 mm (3.4 inches)	82%	moderate
February Weather	7°C (44°F)	135 mm (5.3 inches)	79%	high
March Weather	12°C (54°F)	140 mm (5.5 inches)	77%	very high
April Weather	15°C (60°F)	150 mm (5.9 inches)	78%	very high
May Weather	21°C (70°F)	198 mm (7.8 inches)	82%	very high
June Weather	26°C (78°F)	122 mm (4.8 inches)	81%	extreme
July Weather	27°C (82°F)	86 mm (3.4 inches)	75%	extreme
August Weather	26°C (80°F)	127 mm (5.0 inches)	61%	very high
September Weather	24°C (76°F)	65 mm (2.6 inches)	59%	very high
October Weather	17°C (64°F)	103 mm (4.1 inches)	69%	high
November Weather	10°C (51°F)	88 mm (3.4 inches)	82%	moderate
December Weather	8°C (46°F)	100 mm (3.9 inches)	87%	moderate