Seoul
South Korea
Long term weather forecast
Long term weather forecast

May weather forecast and Climate
Seoul, South Korea

  • Average high temperature in May: 23°C

Warmest month (with highest average high temperature) is August (29.6°C).
Month with lowest average high temperature is January (1.5°C).

  • Average low temperature in May: 13.2°C

Month with highest average low temperature is August (22.4°C).
Coldest month (with lowest average low temperature) is January (-5.9°C).

  • Average humidity in May: 62.7%

Month with highest relative humidity is July (78.3%).
Month with lowest relative humidity is April (56.2%).

  • Average rainfall in May: 105.9mm

Wettest month (with highest rainfall) is July (394.7mm).
Driest month (with lowest rainfall) is January (20.8mm).

  • Average rainfall days in May: 9 days

Month with highest number of rainy days is July (16.3 days).
Month with lowest number of rainy days is February (5.8 days).

  • Average daylight in May: 14h

Month with longest days is June (Average daylight: 15).
Months with shortest days are January, November and December (Average daylight: 10).

  • Average sunshine in May: 6.9h

Month with most sunshine is May (Average sunshine: 6.9).
Month with least sunshine is July (Average sunshine: 3.9).

  • Average UV index in May: 8

Month with highest UV index is July (UV index 10).
Months with lowest UV index are January and December (UV index 2).

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