Summerville (SC) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Summerville

Summerville average temperature chart (Celsius) Summerville average temperature chart (Fahrenheit)
Average monthly temperatures in Summerville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 13.7 15.7 20.1 24.3 28 30.8 32.3 31.6 29.3 24.7 20.4 15.8
°F 56.7 60.2 68.1 75.7 82.4 87.5 90.2 88.9 84.7 76.5 68.7 60.5

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Summerville monthly rainfall chart (mm) Summerville monthly rainfall chart (inches)
Average monthly rainfall in Summerville (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 100 89 108 76 102 144 157 167 121 78 62 79
inches 3.9 3.5 4.3 3 4 5.7 6.2 6.6 4.8 3.1 2.4 3.1
Rainy days 10 9 10 7 9 11 12 13 9 6 7 9

Average annual rainfall in Summerville: 1235.833mm (486.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Summerville

Summerville average daily sunshine chart
Average daily sunshine Summerville
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 7.1 8.3 9.7 10 9.9 9.8 8.8 7.9 7.9 6.9 6.1

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Summerville average minimum / maximum temperatures (Celsius) Summerville average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Summerville (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.8 2 6.2 9.8 14.7 18.9 21 20.7 17.9 11 6.1 2.3
Max °C 14.1 16 20.4 24.7 28.3 31.1 32.6 31.9 29.6 25.1 20.8 16.2
Min °F 33.4 35.6 43.2 49.6 58.5 66 69.8 69.3 64.1 51.7 42.9 36.1
Max °F 45.3 48.2 55.9 63 70.7 77 80.2 79.3 74.7 64.4 56.1 48.6

Sea temperature

The graph below shows the average sea temperature.

Summerville average sea temperature chart (Celsius) Summerville average sea temperature chart (Fahrenheit)
Average sea temperature around Summerville in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 19.7 19.1 18.9 19.7 22.7 26 27.9 28.2 27.3 24.7 22.1 20.7
°F 67.4 66.3 65.9 67.5 72.8 78.8 82.2 82.7 81.1 76.5 71.7 69.3

Wind speed

The graph below shows the average wind speed.

Summerville average winspeed by month (km/h) Summerville average winspeed by month (mph)
Average wind speed in Summerville (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 16 16 16 14 13 13 12 12 13 13 14
mph 9 10 10 10 9 8 8 7 8 8 8 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Summerville relative humidity averages
Average relative humidity in Summerville
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
70% 67% 67% 67% 72% 74% 76% 79% 78% 74% 73% 72%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Summerville weather stats

Summerville weather statistics
Hottest month: July 32.3°C 90.1°F
Driest month: November 62mm 2.4ins
Sunniest month: April 9.7hrs
Coldest month: January 13.7°C 56.7°F
Wettest month: August 167mm 6.6ins
Warmest sea: August 28.2°C 82.8°F
Map showing location of Summerville (33.0185, -80.17565) Summerville map pin © Google

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