Seoul in July:
hot, rain every other day

Seoul, South Korea · Records from 2006 to 2025. Not a forecast.

Mean high30°Hottest day 37.3° (2015)
Mean low23°Coldest night 16.1° (2015)
Rain days14 days7-24 by year
Rainfall433mmDaylight 14.7 → 14.1 h
Seoul's 12 months iBest: May and September
Trip types Sightseeing on foot Finefrequent rain and muggy
Humidity82%27 muggy days
Clear days2 days16 overcast days
Mean wind9 km/hRarely windy
Sunrise / sunset (15th)05:22 / 19:54Daylight 14.7 → 14.1 h

Seoul in July

The month with the most rainy days. The rainy season does not mean rain every day; it tends to pause for a few days, then pour all at once. Once it ends, usually in the last week of July, hot nights set in. Sandals or rain boots that can get wet make getting around easier.

It was a hot month: 30°C by day and 23°C after dark. Rain fell on 14 days of the month on average. A visitor in 2014 met 7 rain days; one in 2013 met 24. The average of 14 hid that gap.

Rain picked up sharply from July, up from 7 days the month before to 14. Daylight lasted 14.1 to 14.7 hours a day, so evenings stayed bright. Highs topped 30°C on 13 days of the month on average. Mixing in indoor stops at midday made sense. July 2021 averaged 32.3°C by day, 2.8°C above the 20-year mean.

How long it rained

On a rainy day it rained for about 7.5 hours. Rain came at any time of day.

Typhoons i

3 of the last 20 years had a tropical storm pass within 300 km this month.

  • Khanun (2012), 212 km away tropical storm
  • Ewiniar (2006), 220 km away tropical storm
  • Chan-Hom (2015), 296 km away tropical storm
1 2 3 4 5 6 37 68 59 210 11 12

Date by date i

‹ June July 2027 August ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-3rain on 43% of days28° 21°
4-10rain on 40% of days29° 22°
11-17rain on 52% of days29° 22°
18-24rain on 46% of days30° 23°
25-31rain on 44% of days31° 24°

0-5/206-8/209-11/2012-20/20

1-3rain on 43% of days28° 21°
4-10rain on 40% of days29° 22°
11-17rain on 52% of days29° 22°
18-24rain on 46% of days30° 23°
25-31rain on 44% of days31° 24°
Tap another date to change

20066mm
200750mm
2008none
200914mm
201013mm
2011124mm
201247mm
20131mm
2014none
2015none
2016none
20171mm
201812mm
20198mm
2020none
20219mm
20226mm
202315mm
2024none
2025none
Holidays in July (2027)
  • July 17 to July 19 Constitution Day long weekend
  • July 19 Substitute holiday (Constitution Day)
  • July 3 to July 5 Independence Day weekend

1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)

Day by day temperature i

20°26°33°39° 1815222931

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
3 d 20 d
2007
2 d 10 d
2008
2 d 15 d
2009
3 d 11 d
2010
1 d 12 d
2011
4 d 21 d
2012
3 d 15 d
2013
6 d 24 d
2014
1 d 7 d
2015
0 d 11 d
2016
2 d 10 d
2017
5 d 18 d
2018
3 d 8 d
2019
1 d 12 d
2020
2 d 14 d
2021
4 d 9 d
2022
3 d 14 d
2023
4 d 19 d
2024
7 d 21 d
2025
0 d 10 d
Years with rain
Tap a date to start, tap another to end. Each cell is that date in one year.
'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
of 20
6
12
8
7
8
4
9
7
9
12
13
9
10
9
9
13
10
9
5
8
8
13
10
12
10
8
9
10
9
7
8
Rain days on trip
32231436102531243470

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2014 had 7 rain days, 2013 had 24.

Seoul through the year

MonthHighLowRain daysRainfall
January 2°−5°3 days14mm
February 5°−3°3 days25mm
March 12°2°5 days42mm
April 18°9°7 days74mm
MayGood 23°14°7 days105mm
June 28°19°7 days118mm
July 30°23°14 days433mm
August 30°23°11 days324mm
SeptemberGood 27°18°7 days146mm
October 20°11°6 days58mm
November 12°4°6 days50mm
December 4°−3°5 days24mm

Common questions

Does it rain a lot in Seoul in July?

Over the past 20 years July averaged 14 rain days (1 mm or more) out of 31. Individual years ran from 7 in the driest to 24 in the wettest.

What should I wear in Seoul in July?

Days averaged 30°C and nights 23°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, and insect repellent.

Is July a good time to visit Seoul?

On warmth and rain days alone, Seoul's easiest months were May and September. July ranked 9 of 12.

Is Seoul humid in July?

Mean relative humidity was 82%, with about 27 muggy days (dew point of 20°C or more) in the month.