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January Weather in St Helens, United Kingdom

Last updated: August 27, 2025

In January, the average temperature in St Helens, United Kingdom hovers around 6°C (42°F), with a minimum of -4°C (25°F) and a maximum of 14°C (58°F). Expect 75 mm (3.0 in) of precipitation spread over 12 days, contributing to an average humidity of a brisk 89%.

January Temperature in St Helens

In January in St Helens, the average temperature is a chilly 6°C (42°F). The maximum can reach a mild 14°C (58°F), while the minimum can dip as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly to ensure comfort during their visit.

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

The chart illustrates January 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, January typically has an average temperature of 6°C (42°F), with highs reaching up to 14°C (58°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345485460626158534743
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.

January Precipitation in St Helens

In St Helens in January, the precipitation amount is 75 mm (3.0 in) over the course of 12 days.

January Precipitation Trends in St Helens

The chart displays monthly precipitation patterns in St Helens, 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 St Helens, January typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec758897506297981199911897115
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in St Helens

In St Helens in January humidity is 89%. With an average temperature of 6°C (42°F), this humidity feels like a heavy blanket wrapping around you, making it challenging for traveling as you navigate the damp air that clings to your skin, leaving you longing for a warm, dry refuge.

January Average Humidity in St Helens

This chart illustrates the average monthly humidity levels in St Helens, 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 St Helens is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in St Helens

In St Helens 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 St Helens.

Maximum UV Index Levels in St Helens for January

The chart shows the monthly maximum UV Index (UVI) for St Helens 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 St Helens typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578875421
Data source: St Helens 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 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)75 mm (3.0 inches)89%low
February Weather6°C (43°F)88 mm (3.5 inches)88%low
March Weather7°C (45°F)97 mm (3.8 inches)86%moderate
April Weather9°C (49°F)50 mm (2.0 inches)84%moderate
May Weather12°C (54°F)62 mm (2.4 inches)79%high
June Weather15°C (60°F)97 mm (3.8 inches)81%very high
July Weather17°C (63°F)98 mm (3.9 inches)78%very high
August Weather16°C (62°F)119 mm (4.7 inches)79%high
September Weather14°C (58°F)99 mm (3.9 inches)85%moderate
October Weather11°C (53°F)117 mm (4.6 inches)90%moderate
November Weather8°C (47°F)97 mm (3.8 inches)91%low
December Weather6°C (44°F)115 mm (4.5 inches)89%low

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