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May Weather in Scotland, United States

Last updated: June 24, 2025

In May, the average temperature in Scotland, United States hovers around 17°C (63°F). Expect a range with minimums dipping to -1°C (31°F) and maximums soaring up to 32°C (90°F). Be prepared for 124 mm (4.9 in) of precipitation spread over 15 days, contributing to an average humidity of 78%.

May Temperature in Scotland

In May in Scotland, the average temperature is 17°C (63°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as -1°C (31°F). It's essential to pack layers and be prepared for varying weather conditions while enjoying your travels.

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

The chart illustrates May temperature patterns in Scotland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Scotland, May typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec333642526371777568584337
Data source: Temperature data for Scotland 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 Scotland

In Scotland in May, the total precipitation amount is 124 mm (4.9 in) over a period of 15 days.

May Precipitation Trends in Scotland

The chart displays monthly precipitation patterns in Scotland, 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 Scotland, May typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec6310193106124951361001261078492
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Scotland

In Scotland in May, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

May Average Humidity in Scotland

This chart illustrates the average monthly humidity levels in Scotland, 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 Scotland is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Scotland

In Scotland in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Scotland.

Maximum UV Index Levels in Scotland for May

The chart shows the monthly maximum UV Index (UVI) for Scotland 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 Scotland typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: Scotland 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 Scotland Compares to Other Months

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

This table compares monthly weather conditions in Scotland, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)63 mm (2.5 inches)86%moderate
February Weather2°C (36°F)101 mm (4.0 inches)86%moderate
March Weather6°C (42°F)93 mm (3.7 inches)86%high
April Weather11°C (53°F)106 mm (4.2 inches)84%very high
May Weather17°C (63°F)124 mm (4.9 inches)78%very high
June Weather22°C (72°F)95 mm (3.7 inches)79%very high
July Weather25°C (77°F)136 mm (5.4 inches)70%very high
August Weather24°C (75°F)100 mm (3.9 inches)59%very high
September Weather20°C (69°F)126 mm (5.0 inches)68%very high
October Weather14°C (58°F)107 mm (4.2 inches)80%high
November Weather6°C (43°F)84 mm (3.3 inches)86%moderate
December Weather3°C (37°F)92 mm (3.6 inches)85%low

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