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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 9°C (49°F). Visitors can expect a minimum of -1°C (30°F) and a comfortable maximum of 23°C (73°F). With 50 mm (2.0 in) of precipitation spread over 9 days, be prepared for some rain. Additionally, the average humidity is a high 84%, contributing to the area's cozy, damp atmosphere.

April Temperature in St Helens

In April in St Helens, the average temperature is 9°C (49°F). Maximums can reach 23°C (73°F), while minimums can drop as low as -1°C (30°F). It's a great time for travelers to pack layers and enjoy the mild yet variable weather.

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 9°C (49°F), with highs reaching up to 23°C (73°F) and lows dropping to around -1°C (30°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.

April Precipitation in St Helens

In St Helens in April, the precipitation amount is 50 mm (2.0 in) over the course of 9 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 50 mm (2.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec758897506297981199911897115
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 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

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 84%, 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 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578875421
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 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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