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Best time to go to Seoul

Find information about the climate and when is the best time to go to Seoul.
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When is the best time to visit Seoul?

In general the best time to visit Seoul is probably August, when the weather is usually great. The hottest months are June, July, August, while the coldest months are January, February, December.
But ultimately the best time to visit depends on what you want to do:
  • The best time for a sun tanning holiday is June, July, August. Average maximum temperatures are up to +30°C in August and it has 5 sunny days on average.
  • In general, it’s pleasant to walk and do outdoor activities during May - October.
  • If you want to avoid wet weather, then your choice is July, August, September with the lowest chance of rain.

Average weather in Seoul in different months

This is the average weather in Seoul for each month based on historic data:

January, February, March, April, May, June, September, October, November, December usually has good weather. Average maximum temperature reaches +27°C during June.

In July, August the weather is average. Expect around 21 rainy days, and the precipitation amounts to approximately 261 mm in July.

Climate in Seoul

Here is the detailed breakdown of the climate in Seoul for each month:
JanFebMarAprMayJunJulAugSepOctNovDec
Maximum Temperature
+15°C+19°C+24°C+30°C+33°C+35°C+38°C+38°C+33°C+29°C+25°C+17°C
Average Maximum Temperature
+2°C+5°C+11°C+17°C+23°C+27°C+29°C+30°C+26°C+20°C+12°C+4°C
Minimum Temperature
-23°C-19°C-9°C-2°C+5°C+11°C+15°C+14°C+5°C-3°C-11°C-18°C
Humidity, %
626060596470777671686664
Rain, mm
1017356285120261222116484414
Snow, mm
963000000016
Average wind speed, m/s
122222221111
Sunny Days
151413121273511161214
Cloud Days
141215131418171614111414
Rainy Days
11355511105442
Snowy Days
110000000001

Average Temperature

Here are the average maximum and minimum temperatures in Seoul during the whole year:
The hottest month in Seoul is August with average maximum temperature going up to +30°C. The coldest month is January with the lowest temperatures of -8°C.

Humidity

The temperature feels different depending on humidity. Here is how humidity in Seoul looks throughout the year, in %:
The most humid month in Seoul is July with average humidity going up to 77%. The least humid month is April with an average humidity of 59%.

Rain

Amount of rainfall in mm. in Seoul during the whole year based on historical data:
The sunniest and driest month is October with approximately 16 sunny days and a total precipitation of around 48 mm. The rainiest and wettest month is July with approximately 11 rainy days and 261 mm of total precipitation.

Snow

Amount of snow in mm. in Seoul during the whole year based on historical data:
The snowiest month is January with approximately 1 snowy days.

FAQ

Frequently asked questions about the weather in Seoul:

What is the hottest month in Seoul?

The hottest month in Seoul is August with average maximum temperature of +30°C.

What is the coldest month in Seoul?

The coldest month in Seoul is January with minimum temperatures of -8°C.

Is Seoul worth visiting in winter?

If you are planning to visit Seoul in winter you can expect pretty good weather. The best month is August with +30°C and 5 sunny days.

When does it rain the least in Seoul?

if you're looking to visit Seoul when it rains the least, you should plan your trip for July, August, June. During this time, rainfall is rare with the driest month being January with only 10 mm of rain.

Monthly weather in Seoul

Source of the data

For this page, we’ve looked at the typical weather in Seoul, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.