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May Weather in Greenville, United States

Last updated: June 24, 2025

In May, the average temperature in Greenville, United States is a pleasant 19°C (67°F). However, it can range from a cool 3°C (37°F) to a warm 32°C (91°F). During this month, expect around 172 mm (6.8 in) of precipitation spread across 13 days, with an average humidity level of 83% making for a refreshing atmosphere.

May Temperature in Greenville

In May in Greenville, the average temperature is 19°C (67°F). Maximums can reach 32°C (91°F), while minimums can drop as low as 3°C (37°F). This diverse temperature range makes Greenville an ideal destination for travelers seeking a mix of warm and cooler weather experiences.

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 19°C (67°F), with highs reaching up to 32°C (91°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec353949566776807673604541
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 172 mm (6.8 in), which occurs over the course of 13 days.

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 172 mm (6.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9011315215817287105104701327980
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 19°C (67°F), this humidity feels like a warm, tropical blanket wrapping around you, making traveling feel a bit sluggish and sticky, yet still inviting as long as you stay hydrated and take breaks in the shade.

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.
JanFebMarAprMayJunJulAugSepOctNovDec83%81%80%80%83%83%76%69%68%72%83%87%
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 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 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 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
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 Weather2°C (36°F)90 mm (3.5 inches)83%moderate
February Weather4°C (39°F)113 mm (4.4 inches)81%high
March Weather9°C (49°F)152 mm (6.0 inches)80%high
April Weather13°C (56°F)158 mm (6.2 inches)80%very high
May Weather19°C (67°F)172 mm (6.8 inches)83%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (80°F)105 mm (4.2 inches)76%extreme
August Weather25°C (77°F)104 mm (4.1 inches)69%very high
September Weather23°C (73°F)70 mm (2.7 inches)68%very high
October Weather15°C (60°F)132 mm (5.2 inches)72%high
November Weather7°C (46°F)79 mm (3.1 inches)83%moderate
December Weather5°C (41°F)80 mm (3.1 inches)86%moderate

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