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April Weather in St. Helens, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in St. Helens, United Kingdom hovers around 10°C (50°F), with nightly lows dipping to 1°C (34°F) and daytime highs reaching up to 19°C (66°F). Be prepared for about 32 mm (1.3 in) of precipitation spread over 7 days, making it a moderately wet month. With an average humidity of 85%, expect that refreshing, crisp feel in the air!

April Temperature in St. Helens

In April in St. Helens, the average temperature is 10°C (50°F). Maximum temperatures can reach 19°C (66°F), while minimum temperatures can drop as low as 1°C (34°F). It's advisable to pack layers to stay comfortable during your travels.

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

The chart illustrates April 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, April typically has an average temperature of 10°C (50°F), with highs reaching up to 19°C (66°F) and lows dropping to around 1°C (34°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.

April Precipitation in St. Helens

In St. Helens in April, the precipitation amount is 32 mm (1.3 in) over the course of 7 days.

April Precipitation Trends in St. Helens

The chart displays monthly precipitation patterns in St. Helens, 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 St. Helens, April typically receives around 32 mm (1.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec68757032567358785711787118
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in St. Helens

In St. Helens in April, humidity is 85%. With an average temperature of 10°C (50°F), this humidity feels like a heavy, damp blanket surrounding you, making travel feel sluggish and uncomfortable as you navigate through the thick, moist air.

April Average Humidity in St. Helens

This chart illustrates the average monthly humidity levels in St. Helens, 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 St. Helens is approximately 85%, 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 April generated using information from the Copernicus Climate Change Service.

April UV Index in St. Helens

In St. Helens in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in St. Helens.

Maximum UV Index Levels in St. Helens for April

The chart shows the monthly maximum UV Index (UVI) for St. Helens 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 St. Helens typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578876421
Data source: St. Helens 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 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 April’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 April’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

Compare St. Helens's Climate with Cities Worldwide