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October Weather in St. Helens, United Kingdom

Last updated: August 27, 2025

In October, the average temperature in St. Helens, United Kingdom is a mild 13°C (56°F). Visitors can expect temperatures to range from a minimum of 4°C (40°F) to a pleasant maximum of 20°C (68°F). However, be prepared for some rain, as the area experiences around 117 mm (4.6 in) of precipitation over 16 days. With an average humidity of 90%, it's advisable to pack accordingly for a moist climate!

October Temperature in St. Helens

In October in St. Helens, the average temperature is 13°C (56°F). The maximum can reach 20°C (68°F), and the minimum can be as low as 4°C (40°F). Overall, it's a mild time to visit, so pack layers to enjoy all that St. Helens has to offer.

October Weather in St. Helens: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in St. Helens, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In St. Helens, October typically has an average temperature of 13°C (56°F), with highs reaching up to 20°C (68°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec444546495561646461565047
Data source: Temperature data for St. Helens generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in St. Helens

In St. Helens in October, the precipitation amount is 117 mm (4.6 in), which falls over a span of 16 days.

October Precipitation Trends in St. Helens

The chart displays monthly precipitation patterns in St. Helens, 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 St. Helens, October typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec68757032567358785711787118
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in St. Helens

In St. Helens in October, humidity is 90%. With an average temperature of 13°C (56°F), this humidity feels like a moist blanket enveloping you, making every step sticky and muggy, and forcing you to take frequent breaks in the shade as you explore the scenery.

October Average Humidity in St. Helens

This chart illustrates the average monthly humidity levels in St. Helens, 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 St. Helens is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%79%81%71%76%82%91%92%92%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in St. Helens

In St. Helens in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in St. Helens for better planning.

Maximum UV Index Levels in St. Helens for October

The chart shows the monthly maximum UV Index (UVI) for St. Helens 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 St. Helens typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876421
Data source: St. Helens 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 St. Helens Compares to Other Months

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

This table compares monthly weather conditions in St. Helens, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)68 mm (2.7 inches)91%low
February Weather7°C (45°F)75 mm (3.0 inches)89%low
March Weather8°C (47°F)70 mm (2.7 inches)86%moderate
April Weather10°C (50°F)32 mm (1.3 inches)85%moderate
May Weather13°C (55°F)56 mm (2.2 inches)79%high
June Weather16°C (61°F)73 mm (2.9 inches)80%very high
July Weather18°C (65°F)58 mm (2.3 inches)71%very high
August Weather18°C (64°F)78 mm (3.1 inches)76%high
September Weather16°C (61°F)57 mm (2.2 inches)82%high
October Weather13°C (56°F)117 mm (4.6 inches)90%moderate
November Weather10°C (50°F)87 mm (3.4 inches)92%low
December Weather8°C (47°F)118 mm (4.7 inches)92%low

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