South Korea weather in May
South Korea in May averages 19°C (65°F), 97 mm of rain and 7.5 hours of sun a day.
Of the twelve months in South Korea, May is the fifth warmest, the fifth wettest and the sunniest.
- Average temp
- 19°C (65°F)
13–25°C · 55–76°F
- Rainfall
- 97 mm
Showers likely
- Sunshine
- 7.5 h
hours per day
What is South Korea like in May?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for South Korea in May?
A light rain jacket
About 97 mm falls this month — showers rather than washouts.
A layer for the evening
The day swings about 12°C between its low and its high.
May compared with April and June
May in South Korea is 5.7°C warmer than April and 21 mm wetter than it, which averages 13°C (55°F).
May in South Korea is 4.4°C cooler than June and 83 mm drier than it, which averages 23°C (73°F).
Daylight in South Korea in May
On 15 May the sun is up for 14 hours 4 minutes in South Korea, rising about 05:23 and setting about 19:27 local time.
May ends 46 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 31 minutes short of June, the longest-lit month here.
Travel guides for South Korea
What to read before you book.
South Korea weather by month
TemperatureRainfall
How May compares with the rest of the year
May is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -1°C / 31°F | 27 mm |
| February | 2°C / 35°F | 37 mm |
| March | 7°C / 44°F | 52 mm |
| April | 13°C / 55°F | 76 mm |
| May | 19°C / 65°F | 97 mm |
| June | 23°C / 73°F | 180 mm |
| July | 26°C / 78°F | 309 mm |
| August | 27°C / 80°F | 315 mm |
| September | 22°C / 71°F | 158 mm |
| October | 15°C / 59°F | 54 mm |
| November | 8°C / 47°F | 47 mm |
| December | 1°C / 34°F | 28 mm |
Similar weather in May
Other destinations whose May averages sit close to this one.
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about South Korea in May
May climate averages for South Korea, 1991–2020.
South Korea averages 19°C (65°F) in May, ranging from about 13°C (55°F) at night to 25°C (76°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 97 mm falls across May, enough to need a light jacket but not enough to reshape a trip.
No. May averages 19°C (65°F) against 23°C (73°F) in June — 4.4°C cooler.
May is 5.7°C warmer than April, and 21 mm wetter.
Yes. May falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 7.5 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what May is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 14 hours 4 minutes of daylight in mid-May, against 14 hours 35 minutes in June and 9 hours 44 minutes in December.
On 15 May, sunrise is about 05:23 and sunset about 19:27 local time. Both shift across the month — the month ends 46 minutes longer than it starts.
