Greenville
South Carolina, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Greenville, SC

A view from the sky of the scenic Greenville City of South Carolina, with a view of the curved bridge over a small river flowing through the city
A view from the sky of the scenic Greenville City of South Carolina, with a view of the curved bridge over a small river flowing through the city
The last month of the spring, May, is a warm month in Greenville, South Carolina, with average temperature varying between 80.2°F (26.8°C) and 57.2°F (14°C).

Temperature

In May, the average high-temperature slightly increases, from a pleasant 72.9°F (22.7°C) in April, to a warm 80.2°F (26.8°C). In May, the average low-temperature is 57.2°F (14°C).

Humidity

In Greenville, the average relative humidity is 68.5%.

Rainfall

In Greenville, South Carolina, during May, the rain falls for 9.7 days and regularly aggregates up to 3.8" (95.5mm) of precipitation. In Greenville, during the entire year, the rain falls for 114.2 days and collects up to 47.2" (1198.5mm) of precipitation.

Snowfall

In Greenville, during the entire year, snow aggregates up to 4.7" (119.4mm).

Daylight

In May, the average length of the day in Greenville, South Carolina, is 14h.

Sunshine

In Greenville, the average sunshine in May is 8.7h.

UV index

In May, the average daily maximum UV index in Greenville, South Carolina, is 9. A UV Index estimate of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
In May, the average maximum UV index of 9 translate into the following recommendations:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Greenville?

In May, in Greenville, South Carolina, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 57.2°F (14°C).

What is the average humidity in May in Greenville?

The average relative humidity in May is 68.5%.

How many days does it rain in May in Greenville?

In Greenville, South Carolina, in May, it is raining for 9.7 days, with typically 3.8" (95.5mm) of accumulated precipitation.

How many hours of daylight does Greenville have in May?

In May, the average length of the day in Greenville is 14h.

How many hours of sunshine does Greenville have in May?

In May, the average sunshine in Greenville is 8.7h.

How high is the UV index in May in Greenville?

In May, the average daily maximum UV index in Greenville is 9. A UV Index of 8 to 10 symbolizes a very high health risk from the exposure to the Sun's UV rays.
Average temperature in May - Greenville, SC
  • Average high temperature in May: 80.2°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (52.4°F).

  • Average low temperature in May: 57.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (32°F).

Average humidity in May - Greenville, SC
  • Average humidity in May: 68.5%

The month with the highest relative humidity is September (75.8%).
The month with the lowest relative humidity is April (60.7%).

Average rainfall in May - Greenville, SC
  • Average rainfall in May: 3.8"

The wettest month (with the highest rainfall) is July (4.8").
Driest months (with the lowest rainfall) are April, September and October (3.4").

Average rainfall days in May - Greenville, SC
  • Average rainfall days in May: 9.7 days

The month with the highest number of rainy days is July (11.7 days).
The month with the lowest number of rainy days is October (7.2 days).

Average snowfall in May - Greenville, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.3").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May - Greenville, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (1.2 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Greenville, SC
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 8.7h

The month with most sunshine is June (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 5.5h).

Average UV index in May - Greenville, SC
  • Average UV index in May: 9

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 3).