Seoul weather › May
May is the 4th rainiest month of the year in Seoul. On average it rains on 7 of 31 days, with highs of 24°C (75°F) and lows of 14°C (57°F).
Trip rating: Great (93/100) · Best months: May and September–October
Rainy day = 1 mm or more of rain. Of these, about 3 days get 10 mm or more. Average of the last 30 years.
T-shirts plus a light long-sleeve layer. Mornings and evenings drop to 14°C (57°F), so bring an extra layer.
Rain is similar to April. Daytime highs rise to 28°C (82°F) in June.
Pick your arrival and departure dates. We look up the same dates over the last 30 years.
~
| Time zone | Korea Standard Time (UTC+9), no daylight saving |
|---|---|
| Power | 220V, 60Hz, Type C/F (round two-pin) sockets |
| Money | Korean won (KRW). Cards are accepted almost everywhere |
| Entry | Visa and K-ETA rules change — check the official K-ETA site and your government's travel advice |
Sunrise 5:22, sunset 19:33 on May 15 (local time) — about 14 h 11 min of daylight.
Observed at Korea Meteorological Administration (KMA) station 108, 1996–2025 daily records. How we calculate