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May Weather in Portswood, United Kingdom

Last updated: August 27, 2025

In Portswood, United Kingdom, the average temperature in May hovers around 13°C (55°F). You can expect conditions to vary, with minimums dipping to 1°C (33°F) and maximums reaching a pleasant 25°C (77°F). The month brings about 70 mm (2.8 in) of precipitation over approximately 10 days, resulting in an average humidity of 79%. Enjoy the unique blend of cool breezes and occasional rain!

May Temperature in Portswood

In May in Portswood, the average temperature is 13°C (55°F). The maximum can reach 25°C (77°F), while the minimum can be as low as 1°C (33°F). This mild climate makes Portswood an appealing destination for travelers seeking comfortable weather for outdoor activities.

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

The chart illustrates May temperature patterns in Portswood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portswood, May typically has an average temperature of 13°C (55°F), with highs reaching up to 25°C (77°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec414346495561656359534744
Data source: Temperature data for Portswood 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 Portswood

In Portswood in May, the precipitation amount is 70 mm (2.8 in) over a period of 10 days.

May Precipitation Trends in Portswood

The chart displays monthly precipitation patterns in Portswood, 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 Portswood, May typically receives around 70 mm (2.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5260673970835871471036593
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Portswood

In Portswood in May humidity is 79%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill that permeates clothing, making outdoor activities slightly uncomfortable and prompting travelers to seek shelter or dress in layers to stay warm while adjusting to the moist air.

May Average Humidity in Portswood

This chart illustrates the average monthly humidity levels in Portswood, 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 Portswood 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 Portswood

In Portswood 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 Portswood.

Maximum UV Index Levels in Portswood for May

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

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

This table compares monthly weather conditions in Portswood, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)52 mm (2.1 inches)91%low
February Weather6°C (44°F)60 mm (2.4 inches)89%low
March Weather8°C (46°F)67 mm (2.6 inches)86%moderate
April Weather10°C (49°F)39 mm (1.5 inches)85%high
May Weather13°C (55°F)70 mm (2.8 inches)79%high
June Weather16°C (61°F)83 mm (3.3 inches)80%very high
July Weather18°C (65°F)58 mm (2.3 inches)71%very high
August Weather17°C (63°F)71 mm (2.8 inches)76%high
September Weather15°C (59°F)47 mm (1.9 inches)82%high
October Weather12°C (54°F)103 mm (4.1 inches)90%moderate
November Weather8°C (47°F)65 mm (2.6 inches)92%low
December Weather7°C (45°F)93 mm (3.7 inches)92%low

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