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May Weather in Portlethen, United Kingdom

Last updated: August 27, 2025

In May, the average temperature in Portlethen, United Kingdom hovers around 9°C (49°F). Expect minimums of 1°C (35°F) and maximums reaching 17°C (63°F). The region sees an average precipitation of 61 mm (2.4 in) spread over approximately 12 days. With an average humidity level of 83%, it's advisable to be prepared for a damp, cool atmosphere!

May Temperature in Portlethen

In May in Portlethen, the average temperature is 9°C (49°F). The maximum can reach 17°C (63°F), and the minimum can be as low as 1°C (35°F). Travelers should pack layers to stay comfortable in varying temperatures.

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

The chart illustrates May temperature patterns in Portlethen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portlethen, May typically has an average temperature of 9°C (49°F), with highs reaching up to 17°C (63°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec414142444954585755514642
Data source: Temperature data for Portlethen 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 Portlethen

In Portlethen in May, the total precipitation amount is 61 mm (2.4 in), which occurs over a span of 12 days.

May Precipitation Trends in Portlethen

The chart displays monthly precipitation patterns in Portlethen, 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 Portlethen, May typically receives around 61 mm (2.4 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec4470623561657864671029686
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Portlethen

In Portlethen in May, humidity is 83%. With an average temperature of 9°C (49°F), this humidity feels like a damp blanket wrapping around you, making outdoor activities uncomfortable for traveling and requiring extra layers to stay warm and dry.

May Average Humidity in Portlethen

This chart illustrates the average monthly humidity levels in Portlethen, 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 Portlethen is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%85%83%83%83%85%83%89%89%90%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Portlethen

In Portlethen in May, 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 Portlethen, you can refer to this Hourly UV Index in Portlethen.

Maximum UV Index Levels in Portlethen for May

The chart shows the monthly maximum UV Index (UVI) for Portlethen 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 Portlethen typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123568765311
Data source: Portlethen 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 Portlethen Compares to Other Months

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

This table compares monthly weather conditions in Portlethen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)44 mm (1.7 inches)88%low
February Weather5°C (41°F)70 mm (2.8 inches)86%low
March Weather6°C (43°F)62 mm (2.4 inches)85%moderate
April Weather7°C (45°F)34 mm (1.4 inches)83%moderate
May Weather9°C (49°F)61 mm (2.4 inches)83%high
June Weather12°C (54°F)65 mm (2.6 inches)83%very high
July Weather14°C (58°F)78 mm (3.1 inches)85%high
August Weather14°C (58°F)64 mm (2.5 inches)83%high
September Weather13°C (55°F)67 mm (2.6 inches)89%moderate
October Weather10°C (51°F)102 mm (4.0 inches)89%moderate
November Weather8°C (46°F)96 mm (3.8 inches)90%low
December Weather6°C (42°F)86 mm (3.4 inches)86%low

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