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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 eventually when is the best time to visit pretty much depends on what you want to do:
- The best time for a sunbathing holiday is June, July, August. Average maximum temperatures go up to +30°C in August and it’s almost 5 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during May - October.
- If you want to avoid rain 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 provide good weather. Average maximum temperature reaches +27°C during June.
In July, August the weather is OK. 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:
| jan | feb | mar | apr | maj | jun | jul | aug | sep | okt | nov | dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Maximum Average 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, % | |||||||||||
| 62 | 60 | 60 | 59 | 64 | 70 | 77 | 76 | 71 | 68 | 66 | 64 |
| Rain, mm | |||||||||||
| 10 | 17 | 35 | 62 | 85 | 120 | 261 | 222 | 116 | 48 | 44 | 14 |
| Snow, mm | |||||||||||
| 9 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
| Average wind speed, m/s | |||||||||||
| 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 |
| Sunny Days | |||||||||||
| 15 | 14 | 13 | 12 | 12 | 7 | 3 | 5 | 11 | 16 | 12 | 14 |
| Cloud Days | |||||||||||
| 14 | 12 | 15 | 13 | 14 | 18 | 17 | 16 | 14 | 11 | 14 | 14 |
| Rainy Days | |||||||||||
| 1 | 1 | 3 | 5 | 5 | 5 | 11 | 10 | 5 | 4 | 4 | 2 |
| Snowy Days | |||||||||||
| 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
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 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 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 going up to +30°C.
What is the coldest month 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.
Is Seoul worth visiting in winter?
If you are planning to visit Seoul in winter you could 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.
Weather in Seoul
Source of the data
For this page, we’ve analyzed the typical weather in Seoul, based on historical hourly weather data and a model taken from January 1, 1979, to December 31, 2022.
For past dates, we are showing actual recorded data at the location at that time. For future dates we are using the recorded weather during that day of the year averaged over all the years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day