Sumter, SC weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Sumter now
Loading the National Weather Service forecast…
Sumter weather by the hour
Sumter weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Sumter.
This week in Sumter
Sunrise, sunset and moon in Sumter
What is the weather usually like in Sumter?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 90°F average high
- Januarycoldest month · 33°F average low
- 48.8 inprecipitation per year · 1,240 mm
- 0.3 insnowfall per year · 1 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Sumter: April–May and September–October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SUMTER, SC US (USC00388440), adjusted for the elevation of Sumter.
Sumter weather month by month
Sunrise and sunset in Sumter through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:25 AM | 5:36 PM | 10 h 11 min |
| February | 7:04 AM | 6:06 PM | 11 h 2 min |
| March | 7:30 AM | 7:30 PM | 12 h 0 min |
| April | 6:49 AM | 7:54 PM | 13 h 5 min |
| May | 6:18 AM | 8:17 PM | 13 h 58 min |
| June | 6:08 AM | 8:35 PM | 14 h 27 min |
| July | 6:20 AM | 8:34 PM | 14 h 14 min |
| August | 6:42 AM | 8:09 PM | 13 h 27 min |
| September | 7:03 AM | 7:29 PM | 12 h 25 min |
| October | 7:25 AM | 6:49 PM | 11 h 23 min |
| November | 6:52 AM | 5:19 PM | 10 h 26 min |
| December | 7:18 AM | 5:15 PM | 9 h 57 min |
Times for the 15th of each month, local time (America/New York).
What is the weather like in Sumter?
Sumter has a humid subtropical climate. The warmest month is July, with an average high of 90°F (32°C), and the coldest is January, with average lows of 33°F (1°C).
It gets about 48.8 inches (1,240 mm) of precipitation a year. The wettest month is July and the driest is November.
The best time to visit Sumter is April–May and September–October. At 171 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Sumter
Weather in towns near Sumter
Questions about the weather in Sumter
What is the hottest month in Sumter?
July, with an average high of 90°F (32°C).
What is the coldest month in Sumter?
January, with an average low of 33°F (1°C).
How much does it rain in Sumter?
About 48.8 inches (1,240 mm) a year; the wettest month is July.
Does it snow in Sumter?
Rarely: less than an inch in an average year.
When is the best time to visit Sumter?
April–May and September–October, when temperatures are most pleasant and rainy days are fewer.
What climate does Sumter have?
Humid subtropical (Köppen Cfa).
What is the weather like in Sumter in November?
Highs average 65°F and lows 40°F, with about 2.9 inches of precipitation.
What time is sunrise in Sumter?
Around 6:52 AM in mid-November, and sunset around 5:19 PM. Today’s exact times are shown above.
Where does this Sumter weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Sumter.
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