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May Weather in Highland, United States

Last updated: June 24, 2025

In May, the average temperature in Highland, United States is a pleasant 20°C (68°F). However, be prepared for fluctuations; it can dip to a cool 4°C (39°F) or soar to a warm 35°C (95°F). You'll also want to bring an umbrella, as 166 mm (6.6 in) of precipitation is expected over 13 days. With an average humidity of 80%, the air will feel quite humid, so dress comfortably!

May Temperature in Highland

In May in Highland, the average temperature is 20°C (68°F). Maximums can reach 35°C (95°F) and minimums can be as low as 4°C (39°F). This weather makes Highland an ideal destination for travelers looking to enjoy mild days and cooler evenings.

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

The chart illustrates May temperature patterns in Highland, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Highland, May typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec323647556877807673594439
Data source: Temperature data for Highland 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 Highland

In Highland in May, the precipitation amount is 166 mm (6.6 in) during 13 days, indicating a significant amount of rainfall for that period.

May Precipitation Trends in Highland

The chart displays monthly precipitation patterns in Highland, 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 Highland, May typically receives around 166 mm (6.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec818313914316710696120591057766
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Highland

In Highland in May, humidity is 80%. With an average temperature of 20°C (68°F), this humidity feels like traveling through a warm, dense blanket that clings to your skin, making you feel both sticky and lethargic as you explore the sights.

May Average Humidity in Highland

This chart illustrates the average monthly humidity levels in Highland, 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 Highland is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Highland

In Highland 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 Highland.

Maximum UV Index Levels in Highland for May

The chart shows the monthly maximum UV Index (UVI) for Highland 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 Highland typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111099653
Data source: Highland 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 Highland Compares to Other Months

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

This table compares monthly weather conditions in Highland, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)80 mm (3.2 inches)84%moderate
February Weather2°C (36°F)83 mm (3.3 inches)82%moderate
March Weather8°C (47°F)139 mm (5.5 inches)84%high
April Weather13°C (56°F)143 mm (5.6 inches)83%very high
May Weather20°C (68°F)166 mm (6.6 inches)80%very high
June Weather25°C (77°F)106 mm (4.2 inches)83%extreme
July Weather26°C (80°F)96 mm (3.8 inches)82%very high
August Weather25°C (77°F)120 mm (4.7 inches)82%very high
September Weather23°C (73°F)59 mm (2.3 inches)79%very high
October Weather15°C (60°F)105 mm (4.1 inches)79%high
November Weather7°C (44°F)77 mm (3.0 inches)88%moderate
December Weather4°C (39°F)66 mm (2.6 inches)87%moderate

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