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May Weather in Mackinaw, United States

Last updated: June 24, 2025

In May, the average temperature in Mackinaw, United States hovers around 18°C (64°F). Expect temperatures to range from a chilly -1°C (31°F) to a warm 35°C (95°F). During this month, precipitation averages 162 mm (6.4 in) across 16 rainy days, contributing to a notable average humidity level of 79%. Prepare for a mix of weather conditions as you explore!

May Temperature in Mackinaw

In May in Mackinaw, the average temperature is 18°C (64°F). Maximums can reach up to 35°C (95°F), while minimums can drop as low as -1°C (31°F). Be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates May temperature patterns in Mackinaw, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mackinaw, May typically has an average temperature of 18°C (64°F), with highs reaching up to 35°C (95°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec273042516474777470564035
Data source: Temperature data for Mackinaw 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 Mackinaw

In Mackinaw in May, the precipitation amount is 162 mm (6.4 in) spread over 16 days.

May Precipitation Trends in Mackinaw

The chart displays monthly precipitation patterns in Mackinaw, 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 Mackinaw, May typically receives around 162 mm (6.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec646911411916212911389621236156
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Mackinaw

In Mackinaw in May, humidity is 79%. With an average temperature of 18°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities more challenging but also creates a lush, vibrant atmosphere that's perfect for exploring local culture and scenery.

May Average Humidity in Mackinaw

This chart illustrates the average monthly humidity levels in Mackinaw, 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 Mackinaw is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mackinaw

In Mackinaw 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 Mackinaw.

Maximum UV Index Levels in Mackinaw for May

The chart shows the monthly maximum UV Index (UVI) for Mackinaw 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 Mackinaw typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111098642
Data source: Mackinaw 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 Mackinaw Compares to Other Months

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

This table compares monthly weather conditions in Mackinaw, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)64 mm (2.5 inches)82%moderate
February Weather-1°C (30°F)69 mm (2.7 inches)83%moderate
March Weather5°C (42°F)114 mm (4.5 inches)84%high
April Weather11°C (51°F)119 mm (4.7 inches)85%very high
May Weather18°C (64°F)162 mm (6.4 inches)79%very high
June Weather23°C (74°F)129 mm (5.1 inches)82%extreme
July Weather25°C (77°F)113 mm (4.5 inches)80%very high
August Weather23°C (74°F)89 mm (3.5 inches)81%very high
September Weather21°C (70°F)62 mm (2.5 inches)80%very high
October Weather13°C (56°F)123 mm (4.8 inches)82%high
November Weather5°C (41°F)61 mm (2.4 inches)88%moderate
December Weather1°C (35°F)56 mm (2.2 inches)84%low

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