Best time to visit South Korea

South Korea in this dataset covers 5 cities with distinct NASA POWER grid cells (plus nearby cities that share a cell). Annual rainfall among those cities runs from 1201 mm in Daegu to 1488 mm in Busan. The monthly-average temperature swing is 23.4–28.1°C depending on the city.

Every city we list in South Korea falls in a continental climate with a wide temperature swing.

Regional contrasts in South Korea

The hottest peak in the sample is Busan in August (25.9°C). The coldest monthly average is Daejeon in January (-3.3°C). Busan takes the most rain (1488 mm a year, wettest in July); Daegu takes the least (1201 mm).

Warmest-month averages in the set range from 24.8°C to 25.9°C. Use the city pages for the month-by-month table; this page is the contrast between places.

Best months by region

South Korea: typical hottest-month average 25.2°C and about 1307 mm of rain a year. Best-scoring months — Busan (June, July, and September); Daegu (June, July, and September); Daejeon (June, July, and September); Gwangju (June, July, and September); Seoul (June, July, and September).

Busan in South Korea

Busan sits at 35.10°, 129.03°. It is a continental climate with a wide temperature swing. August is the warmest month at 25.9°C (high 28.2°C); January is the coolest at 2.5°C (low -0.8°C). The gap between those monthly averages is 23.4°C.

The wet season runs from April to September. The three highest-scoring months for a visit are June, July, and September. That ranking uses the same 22°C / low-rain / 60% humidity score as the city pages. Population in the GeoNames record is 3,285,147. The wettest month is July (299 mm, 17 days with at least 1 mm); the driest is January (30 mm).

Daegu in South Korea

Daegu sits at 35.87°, 128.59°. It is a continental climate with a wide temperature swing. August is the warmest month at 24.8°C (high 28.9°C); January is the coolest at -2.8°C (low -7.9°C). The gap between those monthly averages is 27.6°C.

The wet season runs from May to September. The three highest-scoring months for a visit are June, July, and September. That ranking uses the same 22°C / low-rain / 60% humidity score as the city pages. Population in the GeoNames record is 2,365,523. The wettest month is July (264 mm, 17 days with at least 1 mm); the driest is December (24 mm).

Daejeon in South Korea

Daejeon sits at 36.35°, 127.38°. It is a continental climate with a wide temperature swing. August is the warmest month at 24.8°C (high 28.8°C); January is the coolest at -3.3°C (low -7.9°C). The gap between those monthly averages is 28.1°C.

The wet season runs from June to September. The three highest-scoring months for a visit are June, July, and September. That ranking uses the same 22°C / low-rain / 60% humidity score as the city pages. Population in the GeoNames record is 1,441,203. The wettest month is July (316 mm, 18 days with at least 1 mm); the driest is January (24 mm).

Gwangju in South Korea

Gwangju sits at 35.15°, 126.92°. It is a continental climate with a wide temperature swing. August is the warmest month at 25.3°C (high 29.0°C); January is the coolest at -0.1°C (low -4.2°C). The gap between those monthly averages is 25.4°C.

The wet season runs from April to September. The three highest-scoring months for a visit are June, July, and September. That ranking uses the same 22°C / low-rain / 60% humidity score as the city pages. Population in the GeoNames record is 1,401,235. The wettest month is July (290 mm, 17 days with at least 1 mm); the driest is January (30 mm).

Seoul in South Korea

Seoul sits at 37.57°, 126.98°. It is a continental climate with a wide temperature swing. August is the warmest month at 25.0°C (high 28.3°C); January is the coolest at -3.1°C (low -6.9°C). The gap between those monthly averages is 28.1°C.

The wet season runs from June to September. The three highest-scoring months for a visit are June, July, and September. That ranking uses the same 22°C / low-rain / 60% humidity score as the city pages. Population in the GeoNames record is 10,349,312. The wettest month is July (361 mm, 18 days with at least 1 mm); the driest is January (20 mm).