Warm
Average highs sit around 32°C, giving warm days by monthly-average standards.
Weather Guide
Duncan, South Carolina, United States Average Monthly Weather
Weather score53Mixed annual avg
Best months: June, August, September
Across the year, average daytime temperatures are around 22°C, sunshine averages 7.4h per day, and rainfall totals about 1270mm.
Annual weather
Annual averages
Temp
22°C
Rain
1270mm
Annual total
Sun
7.4h
Weather score
53
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 113mm, so some wet days are possible.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Duncan, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July32°C average high
July is one of Duncan's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
July113mm average rain
July sits near Duncan's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February and April to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July8.6 hours average sun
July is brighter than Duncan's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
July71 weather score
July scores above Duncan's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsMay to September
These months have the strongest weather score in the monthly averages.
