May Weather in Mount Pleasant, United States

Last updated: June 24, 2025

The average temperature in Mount Pleasant, United States during May is a pleasant 18°C (64°F). However, temperatures can vary significantly, with a minimum of 1°C (34°F) and a maximum soaring up to 36°C (98°F). Expect about 164 mm (6.5 in) of precipitation over 16 days throughout the month, contributing to an average humidity of 78%.

May Temperature in Mount Pleasant

In May in Mount Pleasant, the average temperature is 18°C (64°F). Maximums can reach 36°C (98°F) and minimums can be as low as 1°C (34°F). Be prepared for a diverse range of weather conditions while exploring the area!

May Weather in Mount Pleasant: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Mount Pleasant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mount Pleasant, May typically has an average temperature of 18°C (64°F), with highs reaching up to 36°C (98°F) and lows dropping to around 1°C (34°F).

Data source: Temperature data for Mount Pleasant generated using information from the Copernicus Climate Change Service.

May Precipitation in Mount Pleasant

In Mount Pleasant in May, the total precipitation amount is 164 mm (6.5 in), spread over 16 days.

May Precipitation Trends in Mount Pleasant

The chart displays monthly precipitation patterns in Mount Pleasant, 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 Mount Pleasant, May typically receives around 164 mm (6.5 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Mount Pleasant

In Mount Pleasant in May, humidity is 78%. With an average temperature of 18°C (64°F), this humidity feels like a warm, thick blanket wrapping around you, making traveling feel a bit sticky and sluggish, yet the coolness of the air tempers the intensity, inviting you to explore at a leisurely pace.

May Average Humidity in Mount Pleasant

This chart illustrates the average monthly humidity levels in Mount Pleasant, 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 Mount Pleasant is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mount Pleasant

In Mount Pleasant in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Mount Pleasant.

Maximum UV Index Levels in Mount Pleasant for May

The chart shows the monthly maximum UV Index (UVI) for Mount Pleasant 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 Mount Pleasant typically reaches 9, which falls under the very high exposure category.

Data source: Mount Pleasant 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 Mount Pleasant Compares to Other Months

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

This table compares monthly weather conditions in Mount Pleasant, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	54 mm (2.1 inches)	81%	moderate
February Weather	-3°C (27°F)	59 mm (2.3 inches)	81%	moderate
March Weather	5°C (42°F)	92 mm (3.6 inches)	81%	high
April Weather	10°C (51°F)	87 mm (3.4 inches)	82%	very high
May Weather	18°C (64°F)	164 mm (6.5 inches)	78%	very high
June Weather	24°C (75°F)	145 mm (5.7 inches)	81%	extreme
July Weather	25°C (78°F)	72 mm (2.8 inches)	79%	very high
August Weather	24°C (75°F)	72 mm (2.8 inches)	77%	very high
September Weather	21°C (70°F)	110 mm (4.3 inches)	78%	very high
October Weather	13°C (55°F)	132 mm (5.2 inches)	78%	high
November Weather	4°C (40°F)	51 mm (2.0 inches)	87%	moderate
December Weather	1°C (33°F)	46 mm (1.8 inches)	84%	moderate