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May Weather in Swindon, United Kingdom

Last updated: August 27, 2025

In Swindon, United Kingdom, the average temperature in May is a mild 12°C (54°F), with daily variations ranging from a chilly 0°C (32°F) to a warm 26°C (78°F). Expect a total precipitation of 72 mm (2.8 in) spread across 11 days, contributing to an average humidity of 79%. Perfect weather for those who enjoy a mix of cool and comfortable days!

May Temperature in Swindon

In May in Swindon, the average temperature is 12°C (54°F). The maximum can reach 26°C (78°F), while the minimum can drop as low as 0°C (32°F). It's advisable to prepare for variable weather conditions when traveling during this time.

May Weather in Swindon: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Swindon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swindon, May typically has an average temperature of 12°C (54°F), with highs reaching up to 26°C (78°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec414245485460646258524643
Data source: Temperature data for Swindon 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.

May Precipitation in Swindon

In Swindon in May, the precipitation amount is 72 mm (2.8 in) over the course of 11 days.

May Precipitation Trends in Swindon

The chart displays monthly precipitation patterns in Swindon, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Swindon, May typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec5359674372756375511005988
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Swindon

In Swindon in May, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

May Average Humidity in Swindon

This chart illustrates the average monthly humidity levels in Swindon, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Swindon is approximately 79%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Swindon

In Swindon in May, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Swindon.

Maximum UV Index Levels in Swindon for May

The chart shows the monthly maximum UV Index (UVI) for Swindon in May, 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 May, the maximum UV index in Swindon typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Swindon May 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 May Weather in Swindon Compares to Other Months

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

This table compares monthly weather conditions in Swindon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)53 mm (2.1 inches)91%low
February Weather6°C (43°F)59 mm (2.3 inches)89%low
March Weather7°C (45°F)67 mm (2.7 inches)86%moderate
April Weather9°C (49°F)43 mm (1.7 inches)85%high
May Weather12°C (54°F)72 mm (2.8 inches)79%high
June Weather16°C (61°F)75 mm (3.0 inches)80%very high
July Weather18°C (64°F)63 mm (2.5 inches)71%very high
August Weather17°C (63°F)75 mm (3.0 inches)76%high
September Weather14°C (58°F)51 mm (2.0 inches)82%high
October Weather11°C (52°F)100 mm (3.9 inches)90%moderate
November Weather8°C (46°F)59 mm (2.3 inches)92%low
December Weather6°C (43°F)88 mm (3.5 inches)92%low

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