nomadseason

May Weather in Mount Pleasant, United States

Last updated: June 24, 2025

In Mount Pleasant, United States, the average temperature in May hovers around 9°C (49°F), offering a mix of cool and mild days. Expect temperatures to range from a chilly -12°C (10°F) at the lowest to a pleasant 27°C (82°F) at the high end. With an average precipitation of 63 mm (2.5 in) spread over 10 days, you might want to carry an umbrella. The average humidity level is around 54%, adding to the region's unique weather charm.

May Temperature in Mount Pleasant

In May in Mount Pleasant, the average temperature is 9°C (49°F). Maximum temperatures can reach 27°C (82°F), while minimums can dip as low as -12°C (10°F). This fluctuation makes it essential for travelers to pack layers to stay comfortable throughout the day.

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 9°C (49°F), with highs reaching up to 27°C (82°F) and lows dropping to around -12°C (10°F).
JanFebMarAprMayJunJulAugSepOctNovDec222432384863706858413323
Data source: Temperature data for Mount Pleasant generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Mount Pleasant

In Mount Pleasant in May, the precipitation amount is 63 mm (2.5 in) over a span of 10 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 63 mm (2.5 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec565960436318422531403653
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Mount Pleasant

In Mount Pleasant in May, humidity is 54%. With an average temperature of 9°C (49°F), this humidity feels like a cool, crisp embrace, making traveling feel refreshing yet slightly damp, requiring layers for comfort while exploring the sights.

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 54%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110754
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.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)56 mm (2.2 inches)87%moderate
February Weather-5°C (24°F)59 mm (2.3 inches)88%high
March Weather0°C (32°F)60 mm (2.4 inches)77%very high
April Weather3°C (38°F)43 mm (1.7 inches)69%very high
May Weather9°C (49°F)63 mm (2.5 inches)54%extreme
June Weather17°C (63°F)18 mm (0.7 inches)45%extreme
July Weather21°C (70°F)42 mm (1.7 inches)37%extreme
August Weather20°C (68°F)25 mm (1.0 inches)34%extreme
September Weather15°C (59°F)31 mm (1.2 inches)47%very high
October Weather5°C (42°F)40 mm (1.6 inches)67%high
November Weather1°C (34°F)36 mm (1.4 inches)82%moderate
December Weather-5°C (23°F)53 mm (2.1 inches)87%moderate

Compare Mount Pleasant's Climate with Cities Worldwide