Greenville, SC Weather
Greenville hourly forecast: next 24 hours
Today's high of 86°F (30°C) is about 4°F (2°C) above the typical September high of 82°F (28°C).
Current conditions in detail
Greenville weather tomorrow (Wednesday, September 16)
Tomorrow in Greenville looks sunny, with a high of 87° and an overnight low of 68°. Rain is unlikely (4% chance). Winds top out near 8 mph, and the UV index reaches 8 (high).
Greenville 14-day forecast
About the weather in Greenville
Greenville runs on a dry-summer rhythm: the warmest months are also the driest. June averages 3.2 inches (82 mm) while the wet season peaks in December at 5.5 inches (139 mm). Highs range from 51°F (10°C) to 89°F (32°C).
Greenville weather: quick facts
- Hottest month: July - highs near 89°F (32°C)
- Coldest month: January - highs near 51°F (10°C)
- Decade extremes (2015-2024): 98°F (36°C) high · 7°F (-14°C) low
- Wettest month: December (9 rainy days) · Sunniest: July (11.8 h sun/day)
- Climate type: humid subtropical
- Annual swing: 21°C between the average warmest and coolest month · day to night: 10°C
- Snow: about 2 days a year
- Months averaging 30°C or hotter: 2
- Average humidity: 70%
Temperatures through the year
At its warmest, in July, Greenville runs to 89°F (32°C) in the afternoon and back to 71°F (22°C) by dawn. January is the coolest month, with highs of 51°F (10°C) and lows near 34°F (1°C). The gridded 2015-2024 daily record for this location tops out at 98°F (36°C) and bottoms at 7°F (-14°C) - decade extremes, not all-time station records. Snow falls on roughly 2 days a year, mostly December through February.
Rain, sun and snow
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is April through May. December is the wettest month at 5.5 inches (139 mm) over 9 days; June is the driest. Sunshine averages 9.2 hours a day over the year, peaking in July at 11.8 hours.
Season by season
Spring (March through May)
Through spring, Greenville is pleasantly warm: 71°F (22°C) by day, 51°F (11°C) after dark, and rain falls on around 30 of the 90 days.
Summer (June through August)
Summer in Greenville brings hot afternoons, with daytime highs averaging 87°F (31°C) and nights around 69°F (21°C); rain falls on around 39 of the 90 days. Daylight is generous - around 11.5 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
Fall (September through November)
Through fall, Greenville is pleasantly warm: 72°F (22°C) by day, 54°F (12°C) after dark, and expect showers on roughly 25 days across the season.
Winter (December through February)
Through winter, Greenville is chilly: 54°F (12°C) by day, 37°F (3°C) after dark, and expect showers on roughly 30 days across the season.
Average temperatures in Greenville by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 51° | 34° | 10 | 5.1 in | 6.8 h/day | 70% |
| February | 56° | 38° | 11 | 4.6 in | 7.0 h/day | 70% |
| March | 63° | 44° | 11 | 4.1 in | 8.2 h/day | 66% |
| April | 71° | 50° | 9 | 4.8 in | 10.1 h/day | 65% |
| May | 79° | 59° | 10 | 4.1 in | 10.8 h/day | 69% |
| June | 86° | 67° | 12 | 3.2 in | 11.6 h/day | 68% |
| July | 89° | 71° | 14 | 3.7 in | 11.8 h/day | 71% |
| August | 87° | 70° | 13 | 3.4 in | 11.0 h/day | 73% |
| September | 82° | 65° | 10 | 4.5 in | 10.0 h/day | 71% |
| October | 72° | 54° | 7 | 3.3 in | 8.8 h/day | 72% |
| November | 61° | 44° | 8 | 4.0 in | 7.6 h/day | 70% |
| December | 54° | 38° | 9 | 5.5 in | 6.1 h/day | 75% |