Seoul weather in May
Seoul in May averages 19°C (65°F), 104 mm of rain and 6.9 hours of sun a day.
Of the twelve months in Seoul, May is the fifth warmest, the fifth wettest and the sunniest.
- Average temp
- 19°C (65°F)
14–24°C · 56–74°F
- Rainfall
- 104 mm
Showers likely
- Sunshine
- 6.9 h
hours per day
What is Seoul 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 Seoul in May?
A light rain jacket
About 104 mm falls this month — showers rather than washouts.
A layer for the evening
Evenings cool off noticeably once the sun is down.
May compared with April and June
May in Seoul is 5.8°C warmer than April and 34 mm wetter than it, which averages 13°C (55°F).
May in Seoul is 4.6°C cooler than June and 34 mm drier than it, which averages 23°C (74°F).
Daylight in Seoul in May
On 15 May the sun is up for 14 hours 12 minutes in Seoul, rising about 05:22 and setting about 19:34 local time.
May ends 49 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 33 minutes short of June, the longest-lit month here.
Where to stay in Seoul
Dates are a starting point for May.
Travel guides for Seoul
What to read before you book.
Seoul 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 | -2°C / 29°F | 18 mm |
| February | 1°C / 34°F | 28 mm |
| March | 6°C / 44°F | 38 mm |
| April | 13°C / 55°F | 70 mm |
| May | 19°C / 65°F | 104 mm |
| June | 23°C / 74°F | 138 mm |
| July | 25°C / 78°F | 422 mm |
| August | 27°C / 80°F | 390 mm |
| September | 22°C / 72°F | 156 mm |
| October | 15°C / 60°F | 49 mm |
| November | 8°C / 46°F | 50 mm |
| December | 0°C / 32°F | 20 mm |
Similar weather in May
Other destinations whose May averages sit close to this one.
Check another month
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FAQs about Seoul in May
May climate averages for Seoul, 1991–2020.
Seoul averages 19°C (65°F) in May, ranging from about 14°C (56°F) at night to 24°C (74°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 104 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 (74°F) in June — 4.6°C cooler.
May is 5.8°C warmer than April, and 34 mm wetter.
Yes. May falls inside the most comfortable stretch of the year here, April to June, on temperature and rainfall together.
About 6.9 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 12 minutes of daylight in mid-May, against 14 hours 45 minutes in June and 9 hours 35 minutes in December.
On 15 May, sunrise is about 05:22 and sunset about 19:34 local time. Both shift across the month — the month ends 49 minutes longer than it starts.
