Seoul weather in May (South Korea)

Curious about the May weather in Seoul? Here's what the weather might have in store during this month.

In Seoul the weather in May is generally perfect, with high temperatures and moderate rainfall. Daytime temperatures hover around 24°C (show in °F), while nights can cool down to about 12°C.

Seoul in May usually receives moderate rainfall, averaging around 99 mm (show in inches) for the month. Typically around 8 days of rainfall is expected.

The city usually sees around 225 hours of sunlight, indicating many sunny days.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May and October typically offer the most optimal weather. In contrast, January, July, August and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Seoul climate page with graphs.


Seoul, monthly averages in May

Show in Fahrenheit
Min Temperature 12.2°C  
Max Temperature 24°C  
Chance of Rain 27%  
Precipitation 99 mm  
Rainy days 8 days  
Humidity 58%  
Windspeed 7 km/h  
Sunshine 225 hours  
Percentage Sunshine 52%  

Where to go in South Korea in May

Find out more about the weather in South Korea in May and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So, what should you wear in Seoul in May?

For visitors traveling to Seoul, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in May.

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Seoul.

Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.