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April Weather in Swanley, United Kingdom

Last updated: August 27, 2025

In April, the average temperature in Swanley, United Kingdom hovers around 10°C (49°F). Expect a range from a brisk -1°C (30°F) to a pleasant 25°C (77°F). During this time, you'll likely experience 31 mm (1.2 in) of precipitation spread over 8 days, with humidity levels averaging 85%. Be prepared for a mix of cool and warm days as you enjoy all that the season has to offer!

April Temperature in Swanley

In April, in Swanley, the average temperature is 10°C (49°F). Maximums can reach 25°C (77°F), and minimums can be as low as -1°C (30°F). Be prepared for a range of temperatures, making layered clothing essential for your visit.

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

The chart illustrates April temperature patterns in Swanley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swanley, April typically has an average temperature of 10°C (49°F), with highs reaching up to 25°C (77°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec414346495562656459544744
Data source: Temperature data for Swanley 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 Swanley

In Swanley in April, the precipitation amount is 31 mm (1.2 in) over the course of 8 days.

April Precipitation Trends in Swanley

The chart displays monthly precipitation patterns in Swanley, 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 Swanley, April typically receives around 31 mm (1.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec525252316375627146804885
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Swanley

In Swanley in April humidity is 85%. With an average temperature of 10°C (49°F), this humidity feels like an unrelenting blanket, making outdoor activities less enjoyable and forcing travelers to seek shelter more often.

April Average Humidity in Swanley

This chart illustrates the average monthly humidity levels in Swanley, 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 Swanley is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Swanley

In Swanley 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 Swanley.

Maximum UV Index Levels in Swanley for April

The chart shows the monthly maximum UV Index (UVI) for Swanley 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 Swanley typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Swanley 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 Swanley Compares to Other Months

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

This table compares monthly weather conditions in Swanley, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)52 mm (2.1 inches)91%low
February Weather6°C (43°F)52 mm (2.1 inches)89%low
March Weather8°C (46°F)52 mm (2.0 inches)86%moderate
April Weather10°C (49°F)31 mm (1.2 inches)85%moderate
May Weather13°C (55°F)63 mm (2.5 inches)82%high
June Weather17°C (62°F)75 mm (3.0 inches)81%very high
July Weather18°C (65°F)62 mm (2.4 inches)76%very high
August Weather18°C (64°F)71 mm (2.8 inches)73%high
September Weather15°C (60°F)46 mm (1.8 inches)80%moderate
October Weather12°C (54°F)80 mm (3.1 inches)89%moderate
November Weather8°C (47°F)48 mm (1.9 inches)92%low
December Weather6°C (44°F)85 mm (3.4 inches)92%low

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