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April Weather in Radyr, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in Radyr, United Kingdom hovers around 9°C (49°F), offering a mild climate. However, temperatures can dip as low as -1°C (30°F) at night and reach up to 20°C (69°F) during the day. Be prepared for some rain, as the area experiences about 57 mm (2.2 in) of precipitation spread over 10 days. With an average humidity level of 84%, the air can feel quite moist, adding to the unique charm of this season.

April Temperature in Radyr

In April in Radyr, the average temperature is 9°C (49°F). Maximums can reach 20°C (69°F) and minimums can be as low as -1°C (30°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

April Weather in Radyr: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Radyr, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Radyr, April typically has an average temperature of 9°C (49°F), with highs reaching up to 20°C (69°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec424345485460636258534745
Data source: Temperature data for Radyr 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 Radyr

In Radyr in April, the precipitation amount is 57 mm (2.2 in) over a span of 10 days.

April Precipitation Trends in Radyr

The chart displays monthly precipitation patterns in Radyr, 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 Radyr, April typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec751019857798485978113599130
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Radyr

In Radyr 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 Radyr

This chart illustrates the average monthly humidity levels in Radyr, 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 Radyr is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Radyr

In Radyr in April, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Radyr, you can refer to this Hourly UV Index in Radyr.

Maximum UV Index Levels in Radyr for April

The chart shows the monthly maximum UV Index (UVI) for Radyr 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 Radyr typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Radyr 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 Radyr Compares to Other Months

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

This table compares monthly weather conditions in Radyr, 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)88%low
February Weather6°C (44°F)101 mm (4.0 inches)88%low
March Weather7°C (45°F)97 mm (3.8 inches)86%moderate
April Weather9°C (49°F)57 mm (2.2 inches)84%high
May Weather12°C (54°F)79 mm (3.1 inches)80%high
June Weather15°C (60°F)84 mm (3.3 inches)80%very high
July Weather17°C (63°F)85 mm (3.3 inches)70%very high
August Weather17°C (62°F)97 mm (3.8 inches)73%high
September Weather15°C (59°F)81 mm (3.2 inches)79%high
October Weather12°C (54°F)135 mm (5.3 inches)89%moderate
November Weather9°C (48°F)99 mm (3.9 inches)90%low
December Weather7°C (45°F)130 mm (5.1 inches)89%low

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