Incheon
South Korea
Long-term weather forecast
Long-term weather forecast
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May weather forecast and Climate
Incheon, South Korea

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  • The average high temperature in May: 21.3°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (1.7°C).

  • The average low temperature in May: 12.8°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).

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  • The average humidity in May: 70.3%

The month with the highest relative humidity is July (82.2%).
The month with the lowest relative humidity is January (61.5%).

  • The average rainfall in May: 100.3mm

The wettest month (with the highest rainfall) is July (319.6mm).
The driest month (with the lowest rainfall) is December (19.3mm).

  • The average rainfall days in May: 8.7 days

The month with the highest number of rainy days is July (14.9 days).
The month with the lowest number of rainy days is February (5.3 days).

  • The average sea temperature in May: 13.3°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (3.3°C).

  • The average sunshine in May: 7.5h

The month with most sunshine is May (Average sunshine: 7.5h).
The month with least sunshine is July (Average sunshine: 5.1h).

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