South Korea · Asia
What to Wear in Seoul
Month-by-month temperatures, rainfall, and clothing recommendations for Seoul, South Korea. Find out what to pack for every season.
Warmest month
August
30°C / 86°F
Coolest month
January
1°C / 34°F
Wettest month
July
395 mm
Best months
May, June, July
Monthly climate & clothing guide
| Month | High | Low | Rain | Humidity | Climate |
|---|---|---|---|---|---|
| January | 1°C / 34°F | -6°C / 21°F | 21 mm | moderate | Cold |
| February | 4°C / 39°F | -4°C / 25°F | 25 mm | moderate | Cold |
| March | 10°C / 50°F | 1°C / 34°F | 46 mm | moderate | Cool |
| April | 17°C / 63°F | 7°C / 45°F | 77 mm | moderate | Cool |
| May | 23°C / 73°F | 13°C / 55°F | 105 mm | moderate | Mild |
| June | 27°C / 81°F | 18°C / 64°F | 133 mm | high | Warm |
| July | 29°C / 84°F | 22°C / 72°F | 395 mm | high | Warm |
| August | 30°C / 86°F | 22°C / 72°F | 348 mm | high | Hot & Humid |
| September | 26°C / 79°F | 17°C / 63°F | 169 mm | high | Warm |
| October | 19°C / 66°F | 9°C / 48°F | 52 mm | moderate | Mild |
| November | 11°C / 52°F | 2°C / 36°F | 53 mm | moderate | Cool |
| December | 3°C / 37°F | -4°C / 25°F | 22 mm | moderate | Cold |
Seasonal clothing guide for Seoul
Winter (Dec-Feb)
ColdAverage highs 3°C (37°F), lows -5°C (23°F). Total seasonal rainfall: 68 mm.
Full winter layering required. Multiple insulating layers, a weatherproof outer shell, and warm accessories are essential for comfort.
Spring (Mar-May)
CoolAverage highs 17°C (63°F), lows 7°C (45°F). Total seasonal rainfall: 228 mm.
Jacket weather. A proper 3-layer system with insulation keeps you comfortable during full days outdoors. Mornings and evenings need extra warmth.
Summer (Jun-Aug)
WarmAverage highs 29°C (84°F), lows 21°C (70°F). Total seasonal rainfall: 876 mm.
Comfortable temperatures with minimal layering needed. Focus on versatile pieces that work day and evening.
Fall (Sep-Nov)
MildAverage highs 19°C (66°F), lows 9°C (48°F). Total seasonal rainfall: 274 mm.
Spring and fall conditions — comfortable but changeable. A light layering system handles temperature swings between morning, midday, and evening.
FAQ
What should I wear when visiting Seoul?
What to wear in Seoul depends on the month. The warmest month is August (avg high 30°C / 86°F) and the coldest is January (avg high 1°C / 34°F). Check the month-by-month table above for specific clothing recommendations.
What is the best time to visit Seoul?
For comfortable weather and easy packing, the best months to visit Seoul are May, June, July, September, October. These months have mild to warm temperatures with manageable rainfall.
Does it rain a lot in Seoul?
The wettest month in Seoul is July with an average of 395 mm of rainfall. A packable rain jacket is essential during the wet season.
Do I need warm clothes for Seoul?
Yes. Seoul's coldest month is January with average highs of 1°C (34°F). You will need a proper layering system with insulation if visiting during the cooler months.
Ready to pack for Seoul?
Use our interactive tool to compare climates and get layering advice.
Open Climate Calendar