May weather forecast
Spartanburg, SC

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Panorama of downtown Spartanburg in South Carolina
Panorama of downtown Spartanburg in South Carolina

Weather in May

May in Spartanburg signals the onset of the warm season. The city achieves the highest daylight hours during May, earning up to 14 hours of daylight. There is a significant climb in the temperature as well, making the days feel slightly hotter. Spartanburg's May weather features high humidity combined with warm temperatures. Despite the impending summer heat, May conditions remain fairly lovable for residents and visitors alike.

Temperature

Spartanburg's transition into May is noticed by a slight rise in the average high-temperature, advancing from an agreeable 72°F (22.2°C) in April to a moderately hot 79.7°F (26.5°C). The nighttime temperature in Spartanburg dips to a mild 59°F (15°C) on average during May.

Humidity

In May, the average relative humidity in Spartanburg is 74%.

Rainfall

In Spartanburg, South Carolina, during May, the rain falls for 14.7 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Spartanburg, during the entire year, the rain falls for 145.5 days and collects up to 28.98" (736mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In Spartanburg, the average length of the day in May is 14h and 1min.
On the first day of May in Spartanburg, South Carolina, sunrise is at 6:36 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:35 pm EDT.

Sunshine

In May, the average sunshine in Spartanburg is 9.9h.

UV index

The months with the highest UV index in Spartanburg are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What are May temperatures in Spartanburg?

The high-temperature in Spartanburg, South Carolina, during May is 79.7°F (26.5°C) and the low-temperature is 59°F (15°C).

What is the average humidity in May in Spartanburg?

In Spartanburg, South Carolina, the average relative humidity in May is 74%.

How much does it rain in Spartanburg in May?

In Spartanburg, during May, the rain falls for 14.7 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow in Spartanburg?

In Spartanburg, South Carolina, snow does not fall in April through November.

What is the average length of the day in May in Spartanburg?

In May, the average day length is 14h and 1min.

What time are sunrise and sunset in May in Spartanburg?

On the first day of May in Spartanburg, South Carolina, sunrise is at 6:36 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:35 pm EDT.

How long on average sun shines in May in Spartanburg?

The average sunshine duration in May in Spartanburg, South Carolina, is 9.9h.

What is the month with the highest UV index in Spartanburg?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in May in Spartanburg?

In Spartanburg, South Carolina, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Spartanburg, SC

Average temperature in May - Spartanburg, SC
  • Average high temperature in May: 79.7°F

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in May: 59°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 (33.1°F).

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Average pressure in May
Spartanburg, SC

Average pressure in May - Spartanburg, SC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
Spartanburg, SC

Average wind speed in May - Spartanburg, SC
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

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Average humidity in May
Spartanburg, SC

Average humidity in May - Spartanburg, SC
  • Average humidity in May: 74%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in May
Spartanburg, SC

Average rainfall in May - Spartanburg, SC
  • Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in May
Spartanburg, SC

Average rainfall days in May - Spartanburg, SC
  • Average rainfall days in May: 14.7 days

The months with the highest number of rainy days are July and August (15.8 days).
The month with the least rainy days is November (8.5 days).

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Average snowfall in May
Spartanburg, SC

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

The month with the highest snowfall is December (2.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Spartanburg, SC

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Spartanburg, SC

Average daylight in May / Average sunshine in May - Spartanburg, SC
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in May
Spartanburg, SC

Average sunshine days in May - Spartanburg, SC
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (22 days).
The month with the least sunshine days is July (12.7 days).

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Average UV index in May
Spartanburg, SC

Average UV index in May - Spartanburg, SC
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Spartanburg, SC

Average cloud cover in May - Spartanburg, SC
  • Average cloud cover in May: 36

The months with the most cloud cover are February and December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 29).

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Average visibility in May
Spartanburg, SC

Average visibility in May - Spartanburg, SC
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Spartanburg, South Carolina, USA

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