October Weather in London, United States

Last updated: June 24, 2025

In October, the average temperature in London, United States hovers around 17°C (64°F), offering a pleasant climate. However, be prepared for a wide range: temperatures can dip to a chilly -1°C (31°F) or soar to a warm 34°C (93°F). During this time, expect precipitation of about 103 mm (4.1 in) spread across 9 days, adding a touch of freshness to the air, which averages a comfortable 69% humidity.

October Temperature in London

In October in London, the average temperature is 17°C (64°F). The maximum can reach 34°C (93°F), and the minimum can be as low as -1°C (31°F). This variability in temperature makes London an ideal destination for travelers who enjoy experiencing diverse weather conditions.

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

The chart illustrates October 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, October typically has an average temperature of 17°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around -1°C (31°F).

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

October Precipitation in London

In London in October, the precipitation amount is 103 mm (4.1 in) distributed over 9 days.

October Precipitation Trends in London

The chart displays monthly precipitation patterns in London, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In London, October typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 9 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in London

In London in October humidity is 69%. With an average temperature of 17°C (64°F), this humidity feels like a mild, slightly sticky embrace, making strolls through the streets feel refreshing yet a bit heavy, perfect for leisurely exploration while ensuring to stay hydrated.

October Average Humidity in London

This chart illustrates the average monthly humidity levels in London, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in London is approximately 69%, offering insight into how humid the weather typically is during this month.

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

October UV Index in London

In London in October, 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 London.

Maximum UV Index Levels in London for October

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

Data source: London October 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 October 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 October’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 October’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