Seongnam monthly weather averages

Average daytime temperature

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

Seongnam average temperature chart (Celsius) Seongnam average temperature chart (Fahrenheit)
Average monthly temperatures in Seongnam (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 0.6 3 9.2 17.1 22.6 26.2 28.3 29.2 25 19.2 10.8 3.4
°F 33 37.4 48.6 62.7 72.6 79.1 82.9 84.6 77 66.5 51.4 38.1

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.

Seongnam monthly rainfall chart (mm) Seongnam monthly rainfall chart (inches)
Average monthly rainfall in Seongnam (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 24 26 48 98 90 135 349 282 155 52 51 22
inches 1 1 1.9 3.9 3.5 5.3 13.7 11.1 6.1 2 2 0.9
Rainy days 7 6 7 8 8 10 16 14 9 7 10 8

Average annual rainfall in Seongnam: 1496.9mm (589.3 inches)

Average daily sunshine

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

Seongnam average daily sunshine chart
Average daily sunshine Seongnam
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 6.9 7.7 8.2 8.7 8.1 6.1 6.8 7.3 7.4 5.9 5.8

Day / night temperatures

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

Seongnam average minimum / maximum temperatures (Celsius) Seongnam average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Seongnam (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9 -6.5 -1.1 5.3 11.2 16.4 21 21.2 15 7.6 1 -5.8
Max °C 0.8 3.3 9.5 17.4 22.9 26.4 28.5 29.4 25.3 19.5 11 3.6
Min °F 15.8 20.4 30 41.5 52.1 61.5 69.7 70.2 58.9 45.6 33.8 21.6
Max °F 24.6 29.1 39.6 52.3 62.6 70.5 76.5 77.5 68.2 56.3 42.8 30

Sea temperature

The graph below shows the average sea temperature.

Seongnam average sea temperature chart (Celsius) Seongnam average sea temperature chart (Fahrenheit)
Average sea temperature around Seongnam in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.6 6.1 6.3 8.8 13 18.3 22.5 25 22.9 19.3 14.8 10.7
°F 45.6 42.9 43.3 47.9 55.3 65 72.4 77 73.3 66.7 58.6 51.3

Wind speed

The graph below shows the average wind speed.

Seongnam average winspeed by month (km/h) Seongnam average winspeed by month (mph)
Average wind speed in Seongnam (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 7 8 8 9 7 6 6 6 5 5 7 7
mph 4 5 5 5 5 4 4 4 3 3 4 4

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.

Seongnam relative humidity averages
Average relative humidity in Seongnam
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
68% 67% 66% 65% 68% 74% 82% 80% 77% 73% 70% 70%

Other monthly averages

UV index Best time to go?

Seongnam weather stats

Seongnam weather statistics
Hottest month: August 29.2°C 84.6°F
Driest month: December 22mm 0.9ins
Sunniest month: October 7.4hrs
Coldest month: January 0.6°C 33.1°F
Wettest month: July 349mm 13.7ins
Warmest sea: August 25°C 77°F
Map showing location of Seongnam (37.43861, 127.13778) Seongnam map pin © Google

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