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May Weather in Greenville, United States

Last updated: June 24, 2025

In May , the average temperature in Greenville, United States hovers around 23°C (74°F). Expect a range of temperatures, with a minimum of 9°C (49°F) and warming up to a maximum of 34°C (93°F). Rainfall during this month averages 129 mm (5.1 in) over 11 days, and the humidity remains high at 83%, creating a tropical ambiance.

May Temperature in Greenville

In May in Greenville, the average temperature is 23°C (74°F). Maximum can reach 34°C (93°F) and minimum can be as low as 9°C (49°F). This makes Greenville an ideal destination for travelers seeking pleasant weather and a range of outdoor activities.

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

The chart illustrates May temperature patterns in Greenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Greenville, May typically has an average temperature of 23°C (74°F), with highs reaching up to 34°C (93°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec465059647480828278675451
Data source: Temperature data for Greenville 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 Greenville

In Greenville in May, the precipitation amount is 129 mm (5.1 in) spread over 11 days, indicating a wet period for the area.

May Precipitation Trends in Greenville

The chart displays monthly precipitation patterns in Greenville, 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 Greenville, May typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec120196166157129125931138012985128
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Greenville

In Greenville in May humidity is 83%. With an average temperature of 23°C (74°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier, and leaving you constantly in search of a cool breeze or shade while exploring.

May Average Humidity in Greenville

This chart illustrates the average monthly humidity levels in Greenville, 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 Greenville is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Greenville

In Greenville 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 Greenville.

Maximum UV Index Levels in Greenville for May

The chart shows the monthly maximum UV Index (UVI) for Greenville 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 Greenville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111211119764
Data source: Greenville 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 Greenville Compares to Other Months

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

This table compares monthly weather conditions in Greenville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)120 mm (4.7 inches)84%moderate
February Weather10°C (50°F)196 mm (7.7 inches)83%high
March Weather15°C (59°F)166 mm (6.5 inches)80%very high
April Weather18°C (64°F)156 mm (6.2 inches)82%very high
May Weather23°C (74°F)129 mm (5.1 inches)83%extreme
June Weather26°C (80°F)125 mm (4.9 inches)80%extreme
July Weather28°C (83°F)93 mm (3.7 inches)80%extreme
August Weather28°C (82°F)113 mm (4.4 inches)75%extreme
September Weather26°C (78°F)80 mm (3.1 inches)73%very high
October Weather20°C (67°F)129 mm (5.1 inches)76%high
November Weather12°C (54°F)85 mm (3.4 inches)84%high
December Weather10°C (51°F)128 mm (5.0 inches)88%moderate

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