Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
September verdict
Very good for holiday weather
Average highs sit around 30°C, giving warm days by monthly-average standards. Sunshine averages 7.3h per day, enough for a balanced month. Rainfall averages 122mm, so some wet days are possible.
Monthly averages
Temp
30°C
Rain
122mm
Sun
7.3h
Weather score
75
Very good
Warm
Average highs sit around 30°C, giving warm days by monthly-average standards.
Showers
Rainfall averages 122mm, so some wet days are possible.
Some sun
Sunshine averages 7.3h per day, enough for a balanced month.
Map
Compare Summerville, South Carolina, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September30°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
September122mm average rain
September sits near Summerville's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to February, April, and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September7.3 hours average sun
September sits close to Summerville's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to July
This stretch has the strongest sunshine in the monthly averages.
September75 weather score
September is one of Summerville's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsApril to July and September
These months have the strongest weather score in the monthly averages.