Impact-Site-Verification: e97618de-a52b-470d-b945-7e81282bcff0
Seoul skyline with traditional and modern architecture

Seoul, South Korea

Best Time to Visit Seoul

Weather month by month, from 20 years of weather-station records.

Best months
May, September, and October
Warmest month
August, 30°C
Wettest month
July, 759 mm

Seoul weather by month

Average daily high and low, total rainfall and days with at least 2.5 mm of rain.

MonthHigh / lowRainVerdict
January2°C / -6°C109 mm · 8 daysCold
February5°C / -4°C88 mm · 8 daysCold
March11°C / 2°C143 mm · 10 daysCold
April18°C / 8°C178 mm · 13 daysWet
May24°C / 13°C273 mm · 15 daysGood
June28°C / 19°C335 mm · 13 daysWet
July29°C / 23°C759 mm · 18 daysWet
August30°C / 24°C438 mm · 16 daysWet
September27°C / 18°C384 mm · 15 daysGood
October21°C / 11°C191 mm · 14 daysGood
November12°C / 3°C145 mm · 12 daysWet
December4°C / -5°C59 mm · 6 daysCold

Seoul by season

Spring

Spring (March-May) is arguably Seoul's most beautiful season, with mild temperatures and the city exploding in pastel shades of cherry blossoms and other spring flowers.

  • + Perfect weather for walking and outdoor sightseeing
  • + Stunning cherry blossoms at Yeouido Park and along the Cheonggyecheon Stream
  • + Major festivals like the Yeouido Spring Flower Festival
  • − Peak tourist season; major attractions are crowded
  • − Accommodation prices are at their highest

Summer

Summer (June-August) is hot, humid, and rainy, with the monsoon season (Jangma) typically hitting in July. It's a vibrant but physically demanding time to visit.

  • + Lively outdoor festivals and events
  • + Lush, green scenery in the mountains and parks
  • + Refreshing cold noodle dishes (naengmyeon) are in season
  • − High heat and oppressive humidity
  • − Heavy rainfall during the monsoon period

Autumn

Autumn (September-November) brings crisp, cool air and spectacular foliage. The mountains and palace grounds are set ablaze with vibrant red, orange, and yellow hues.

  • + Comfortable, dry weather ideal for hiking and exploration
  • + Breathtaking autumn foliage, especially at Namsan Park and the palaces
  • + Great light for photography
  • − Another peak season with significant crowds
  • − Air can be hazy at times

Winter

Winter (December-February) is cold and dry, with occasional snow that dusts the palaces in a magical way. It's the season for cozy indoor activities and hearty food.

  • + Fewer tourists and lower prices on accommodation
  • + Magical atmosphere when palaces are covered in snow
  • + Perfect for warming foods like hotteok, stews, and winter street food
  • − Bitterly cold temperatures, especially with wind chill
  • − Some outdoor attractions or hiking trails may be less accessible

Seoul month by month

Seoul in January

Cold

In January, Seoul averages highs of 2°C and lows of -6°C, with about 8 rainy days and 109 mm of rain. It is cold, so pack warm layers.

Seoul in February

Cold

In February, Seoul averages highs of 5°C and lows of -4°C, with about 8 rainy days and 88 mm of rain. It is cold, so pack warm layers.

Seoul in March

Cold

In March, Seoul averages highs of 11°C and lows of 2°C, with about 10 rainy days and 143 mm of rain. It is cold, so pack warm layers.

Seoul in April

Wet

In April, Seoul averages highs of 18°C and lows of 8°C, with about 13 rainy days and 178 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.

Seoul in May

Good

In May, Seoul averages highs of 24°C and lows of 13°C, with about 15 rainy days and 273 mm of rain. It is a good month to visit.

Seoul in June

Wet

In June, Seoul averages highs of 28°C and lows of 19°C, with about 13 rainy days and 335 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.

Seoul in July

Wet

In July, Seoul averages highs of 29°C and lows of 23°C, with about 18 rainy days and 759 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.

Seoul in August

Wet

In August, Seoul averages highs of 30°C and lows of 24°C, with about 16 rainy days and 438 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.

Seoul in September

Good

In September, Seoul averages highs of 27°C and lows of 18°C, with about 15 rainy days and 384 mm of rain. It is a good month to visit.

Seoul in October

Good

In October, Seoul averages highs of 21°C and lows of 11°C, with about 14 rainy days and 191 mm of rain. It is a good month to visit.

Seoul in November

Wet

In November, Seoul averages highs of 12°C and lows of 3°C, with about 12 rainy days and 145 mm of rain. It is one of the wetter months, so keep indoor plans in reserve.

Seoul in December

Cold

In December, Seoul averages highs of 4°C and lows of -5°C, with about 6 rainy days and 59 mm of rain. It is cold, so pack warm layers.

Top tours and experiences in Seoul

The tours and tickets travellers book most, with ratings and reviews from Viator.

Best DMZ Tour Korea from Seoul (Suspension Bridge & JSA Museum)

Best DMZ Tour Korea from Seoul (Suspension Bridge & JSA Museum)

4.952,894 reviews7h
Best DMZ Tour Seoul: Defector Q&A, 3rd Tunnel & Suspension Bridge

Best DMZ Tour Seoul: Defector Q&A, 3rd Tunnel & Suspension Bridge

5.030,575 reviews6h
DMZ Tour: Defector Q&A, Tunnel & Suspension Bridge /Hotel pick up

DMZ Tour: Defector Q&A, Tunnel & Suspension Bridge /Hotel pick up

5.026,637 reviews7h
DMZ tour from Seoul; North Korean Defector Meet up & 3rd Tunnel

DMZ tour from Seoul; North Korean Defector Meet up & 3rd Tunnel

4.96,216 reviews6h 30m
All things to do in Seoul →

Tours and prices from Viator, a Tripadvisor company. Prices change with your dates. We may earn a commission if you book, at no extra cost to you.

Plan your Seoul trip

Best time to visit Seoul: FAQ

What is the best month to visit Seoul?+

May is the most comfortable month on average, with highs of 24°C. September and October are close behind.

What is the rainiest month in Seoul?+

July is the wettest month, with about 759 mm of rain.

How hot does Seoul get?+

August is the warmest month, with average highs of 30°C and lows of 24°C. The coldest nights come in January, averaging -6°C.

Averages for 2006–2025 from the SEOUL CITY weather station (1 km from the centre), NOAA Global Historical Climatology Network. Verdicts rate sightseeing comfort from daytime highs and rainy days.