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April Weather in Castlereagh, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in Castlereagh, United Kingdom hovers around 8°C (47°F). Temperatures can drop to a chilly -1°C (31°F) at their lowest, while reaching a comfortable 18°C (65°F) at their peak. Expect precipitation totaling 45 mm (1.8 in) over roughly 10 days, and prepare for high humidity levels averaging 85%.

April Temperature in Castlereagh

In April in Castlereagh, the average temperature is 8°C (47°F). Maximums can reach up to 18°C (65°F), while minimums can dip as low as -1°C (31°F). Be prepared for a mix of mild days and chilly nights while exploring.

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

The chart illustrates April temperature patterns in Castlereagh, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castlereagh, April typically has an average temperature of 8°C (47°F), with highs reaching up to 18°C (65°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec424344475257605956514744
Data source: Temperature data for Castlereagh 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 Castlereagh

In Castlereagh in April, the precipitation amount is 45 mm (1.8 in) spread over a duration of 10 days.

April Precipitation Trends in Castlereagh

The chart displays monthly precipitation patterns in Castlereagh, 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 Castlereagh, April typically receives around 45 mm (1.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec6089804566788411575929491
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Castlereagh

In Castlereagh in April humidity is 85%. With an average temperature of 8°C (47°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities feel less refreshing and more uncomfortable for traveling.

April Average Humidity in Castlereagh

This chart illustrates the average monthly humidity levels in Castlereagh, 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 Castlereagh is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Castlereagh

In Castlereagh 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 Castlereagh.

Maximum UV Index Levels in Castlereagh for April

The chart shows the monthly maximum UV Index (UVI) for Castlereagh 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 Castlereagh typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578865321
Data source: Castlereagh 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 Castlereagh Compares to Other Months

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

This table compares monthly weather conditions in Castlereagh, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)60 mm (2.3 inches)87%low
February Weather6°C (43°F)89 mm (3.5 inches)86%low
March Weather7°C (44°F)80 mm (3.2 inches)86%moderate
April Weather8°C (47°F)45 mm (1.8 inches)85%moderate
May Weather11°C (52°F)66 mm (2.6 inches)82%high
June Weather14°C (57°F)78 mm (3.1 inches)84%very high
July Weather15°C (60°F)84 mm (3.3 inches)86%very high
August Weather15°C (59°F)115 mm (4.5 inches)86%high
September Weather13°C (56°F)75 mm (3.0 inches)88%moderate
October Weather11°C (52°F)92 mm (3.6 inches)89%moderate
November Weather8°C (47°F)94 mm (3.7 inches)90%low
December Weather6°C (44°F)91 mm (3.6 inches)86%low

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