Best Time to Visit
Best Time to Visit Seoul
🇰🇷 Seoul, South Korea · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Recommended Travel Months
Jan
6°
-2°
Good
Feb
10°
2°
Good
Mar
15°
7°
Great
Apr
19°
11°
Great
May
23°
15°
Great
Jun
24°
16°
Great
Jul
23°
15°
Great
Aug
19°
11°
Great
Sep
15°
7°
Great
Oct
10°
2°
Good
Nov
6°
-2°
Good
Dec
5°
-3°
Good
Month-by-Month Weather in Seoul
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| January | 6°C | -2°C | 3 | 1h | 65% | 1 | Good | View |
| February | 10°C | 2°C | 3 | 3h | 65% | 1 | Good | View |
| MarchRecommended | 15°C | 7°C | 4 | 4h | 65% | 6 | Great | View |
| AprilRecommended | 19°C | 11°C | 5 | 6h | 65% | 6 | Great | View |
| MayRecommended | 23°C | 15°C | 6 | 7h | 65% | 9 | Great | View |
| JuneRecommended | 24°C | 16°C | 6 | 7h | 65% | 9 | Great | View |
| JulyRecommended | 23°C | 15°C | 6 | 7h | 65% | 9 | Great | View |
| AugustRecommended | 19°C | 11°C | 5 | 6h | 65% | 9 | Great | View |
| SeptemberRecommended | 15°C | 7°C | 4 | 4h | 65% | 6 | Great | View |
| October | 10°C | 2°C | 3 | 3h | 65% | 6 | Good | View |
| November | 6°C | -2°C | 3 | 1h | 65% | 1 | Good | View |
| December | 5°C | -3°C | 3 | 1h | 65% | 1 | Good | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Seasonal Guide to Seoul
Spring (March to May)
Avg: 19°C high, 11°C low
Spring in Seoul brings gradually mild temperatures. Daytime highs reach around 19°C (66°F) while nights cool to 11°C (52°F). Rainfall is relatively low, making it a pleasant time for outdoor exploration.
Summer (June to August)
Avg: 22°C high, 14°C low
Summer is the warmest season in Seoul, with temperatures reaching 22°C (72°F). Comfortable warmth makes this a popular time for tourists, though accommodation prices tend to peak. Long daylight hours and abundant sunshine provide plenty of time to explore.
Fall (September to November)
Avg: 10°C high, 2°C low
Fall in Seoul is a transitional season with changing conditions. Temperatures settle around 10°C (50°F) during the day and 2°C (36°F) at night. Drier weather and thinner crowds make this an appealing alternative to peak summer travel.
Winter (December to February)
Avg: 7°C high, -1°C low
Winter in Seoul brings the coolest weather of the year. Layers are essential, and some outdoor attractions may have reduced hours. However, hotel prices typically drop and popular sites are less crowded.
When to Avoid Seoul
The least favorable time to visit Seoul is January and November. During this period, you can expect cold weather, very limited sunshine.
January
Challenges: cold weather, very limited sunshine
November
Challenges: cold weather, very limited sunshine
December
Challenges: freezing temperatures, very limited sunshine
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience. Consider your priorities when planning your trip.
What to Pack for Seoul
Packing recommendations for visiting Seoul during the best travel months (April, August, March), when temperatures range from 10°C to 18°C:
- +Medium-weight layers and a warm jacket
- +Long pants and closed-toe shoes
- +A compact umbrella or light rain jacket
- +Sunscreen (SPF 30+), sunglasses, and a wide-brim hat
- +Reusable water bottle
- +Universal power adapter
Seoul Year-Round Climate Overview
Seoul has a continental climate (Koppen classification: Dwa). The warmest month is June with highs of 24°C, while the coldest month is December at just 5°C. Annual rainfall averages 600mm across approximately 51 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 6 | 10 | 15 | 19 | 23 | 24 | 23 | 19 | 15 | 10 | 6 | 5 |
| Low °C | -2 | 2 | 7 | 11 | 15 | 16 | 15 | 11 | 7 | 2 | -2 | -3 |
| Rain Days | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 5 | 4 | 3 | 3 | 3 |
| Rain mm | 33 | 40 | 50 | 60 | 67 | 70 | 67 | 60 | 50 | 40 | 33 | 30 |
| Sun h/day | 1 | 3 | 4 | 6 | 7 | 7 | 7 | 6 | 4 | 3 | 1 | 1 |
| Humidity % | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| UV Index | 1 | 1 | 6 | 6 | 9 | 9 | 9 | 9 | 6 | 6 | 1 | 1 |
Compare Nearby Destinations
Considering alternatives to Seoul? Compare the best travel months for nearby cities:
Frequently Asked Questions
What is the best month to visit Seoul?+
The best time to visit Seoul is April, August, March. During these months, temperatures average 18°C (64°F) with 5 hours of daily sunshine and only 5 rain days per month. These conditions offer the most comfortable weather for sightseeing and outdoor activities.
What is the worst time to visit Seoul?+
The least ideal time to visit Seoul is January and November. During this period, you can expect cold weather, very limited sunshine. While Seoul can still be visited during this time (often with fewer crowds and lower prices), the weather may limit outdoor activities.
Is Seoul good to visit in summer?+
Summer in Seoul (June to August) brings temperatures of 22°C (72°F) highs and 14°C (57°F) lows, with about 7 hours of sunshine and 6 rain days per month. This is generally a good time to visit.
What is the rainy season in Seoul?+
Seoul does not have a distinct rainy season. Rainfall is relatively evenly distributed throughout the year, averaging 4 rain days per month.
What should I pack for Seoul?+
When visiting Seoul during the best travel months (April, August, March), pack medium-weight layers, a warm jacket, long pants, and closed-toe shoes. Bring a compact umbrella just in case. Sunscreen and sunglasses are recommended, especially given the high UV index.
Is April a good time to visit Seoul?+
Yes, April is one of the best months to visit Seoul. Expect average highs of 19°C (66°F), 6 hours of daily sunshine, and only 5 rain days. The weather is ideal for exploring the city, visiting outdoor attractions, and enjoying local activities.
Detailed Monthly Weather for Seoul
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
More Travel Weather Guides
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