South Korea
Seoul Climate & Weather Guide
Average temperatures, rainfall and conditions through the year, based on 20 years of historical data.
Climate Overview
Seoul experiences its warmest weather in August, with average highs reaching 29.1°C (84.4°F). The coolest month is typically January, averaging 1.8°C (35.2°F). Rainfall is heaviest in July (around 342.6mm), while January tends to be the driest month of the year with approximately 15.4mm of precipitation.
29.1°C (84.4°F)
Hottest month avg high
1.8°C (35.2°F)
Coolest month avg high
343mm
Wettest month avg
15mm
Driest month avg
Temperature by Month
Rainfall by Month
Sunshine Hours
Monthly Averages
| Month | Avg High | Avg Low | Rainfall | Rainy Days | Sunshine |
|---|---|---|---|---|---|
| Jan | 1.8°C (35.2°F) | -7.1°C (19.2°F) | 15.4mm | 3 | 7.9h |
| Feb | 4.8°C (40.6°F) | -4.9°C (23.2°F) | 23.7mm | 4 | 8.5h |
| Mar | 10.7°C (51.3°F) | -0.2°C (31.6°F) | 43.2mm | 7 | 9.2h |
| Apr | 16.8°C (62.2°F) | 5.7°C (42.3°F) | 71.7mm | 8 | 9.5h |
| May | 22.4°C (72.3°F) | 11.6°C (52.9°F) | 100.4mm | 8 | 9.9h |
| Jun | 26.9°C (80.4°F) | 17.5°C (63.5°F) | 121.3mm | 9 | 9.9h |
What to Pack
Suggested packing for Seoul's climate.
Versatile Layers
Light layers that work for both mild afternoons and cooler evenings.
Rain Protection
A compact umbrella and a light rain jacket for the wettest months.
Warm Layers
A warm jacket or fleece for chilly mornings and evenings.
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