Climate and Average Weather Year Round in South Korea

We show the climate in South Korea by comparing the average weather in 3 representative places: Seoul, Busan, and Gwangju.

You can add or remove cities to customize the report to your liking. See all locations in South Korea.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

South Korea
South Korea
South Korea

Average High and Low Temperature in South Korea

Average High and Low Temperature in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°F752185344488401226789298NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
Seoul 34°F40°F50°F63°F73°F79°F83°F84°F77°F66°F52°F39°F
Busan 45°F48°F55°F63°F70°F75°F81°F84°F78°F71°F60°F49°F
Gwangju 40°F45°F55°F66°F76°F82°F86°F87°F80°F70°F57°F45°F
Seoul 22°F27°F37°F48°F57°F66°F72°F73°F63°F51°F38°F26°F
Busan 33°F36°F43°F52°F60°F66°F73°F75°F68°F59°F48°F37°F
Gwangju 24°F27°F35°F45°F55°F65°F72°F72°F62°F49°F37°F27°F


Average Hourly Temperature in SeoulJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcoolwarmfreezingcomfortablevery coldfreezing


Average Hourly Temperature in BusanJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldcoldcoldcoolcoolcomfortablewarmvery coldcomfortablevery cold


Average Hourly Temperature in GwangjuJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoldcoolcoolwarmhotwarmvery coldfreezingfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in South Korea

Chance of Clearer Skies in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%71457534NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Seoul 66%63%57%54%55%52%47%52%60%69%67%67%
Busan 69%62%54%52%50%41%40%48%56%69%71%74%
Gwangju 53%54%51%50%51%44%41%49%57%68%65%60%

Daily Chance of Precipitation in South Korea

Daily Chance of Precipitation in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%5394989NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Seoul 3.1d3.2d4.9d6.3d7.1d9.2d15.9d14.1d8.3d5.4d5.2d3.5d
Busan 3.4d4.7d6.6d7.8d7.9d10.6d13.6d12.8d8.7d5.0d4.3d3.0d
Gwangju 3.4d4.3d5.9d6.9d7.5d10.1d14.8d13.9d8.1d4.9d5.2d3.7d

Average Monthly Rainfall in South Korea

Average Monthly Rainfall in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in11.60.510.40.9NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
Seoul 0.5″0.9″1.5″2.5″3.3″5.5″11.6″9.6″5.5″2.0″1.5″0.7″
Busan 1.0″1.9″3.1″4.7″5.1″7.6″9.7″8.4″6.0″2.5″1.8″1.0″
Gwangju 0.8″1.5″2.6″3.5″3.9″7.0″10.1″8.8″5.6″2.1″1.8″0.9″

Average Monthly Snowfall in South Korea

Average Monthly Snowfall in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 in1.20.11.3NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
Seoul 1.1″0.9″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.1″0.8″
Busan 0.1″0.1″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.0″
Gwangju 1.3″0.8″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.2″0.9″

Hours of Daylight in South Korea

Hours of Daylight in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.89.6NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The number of hours during which the Sun is at least partly above the horizon.
Seoul 9.9h10.8h12.0h13.2h14.2h14.7h14.5h13.6h12.4h11.2h10.2h9.6h
Busan 10.1h10.9h12.0h13.1h14.0h14.5h14.2h13.4h12.4h11.3h10.3h9.8h
Gwangju 10.1h10.9h12.0h13.1h14.0h14.5h14.3h13.4h12.4h11.3h10.3h9.8h

Chance of Muggy Conditions in South Korea

Chance of Muggy Conditions in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%9196NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Seoul 0.0d0.0d0.0d0.0d0.3d7.6d25.2d24.0d6.2d0.2d0.0d0.0d
Busan 0.0d0.0d0.0d0.1d0.8d9.9d26.3d27.1d11.7d1.3d0.0d0.0d
Gwangju 0.0d0.0d0.0d0.2d1.6d12.6d28.1d27.9d11.7d1.0d0.0d0.0d

Average Wind Speed in South Korea

Average Wind Speed in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph9.46.813.
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Busan 13.513.012.311.39.99.410.210.411.311.211.913.1

Average Water Temperature in South Korea

Average Water Temperature in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F7639795549NowNowBusanBusanSeoulSeoul
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Seoul 42°F39°F41°F47°F55°F64°F71°F76°F73°F66°F57°F48°F
Busan 58°F56°F56°F58°F62°F68°F74°F78°F76°F71°F66°F61°F
Gwangju 52°F49°F50°F53°F59°F67°F73°F77°F74°F68°F61°F55°F

Tourism Score in South Korea

Tourism Score in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in South Korea

Beach/Pool Score in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.1NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in South Korea

Growing Season in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in South Korea

Growing Degree Days in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°FNowNowGwangjuGwangjuBusanBusanSeoulSeoul
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in South Korea

Average Daily Incident Shortwave Solar Energy in South KoreaJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.52.32.7NowNowGwangjuGwangjuBusanBusanSeoulSeoul
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec

This report illustrates the typical weather for Seoul, Busan, and Gwangju year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:


The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.

Other Locations