Incheon
South Korea
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Incheon, South Korea

December, the first month of the winter, in Incheon, is also a wintry month, with temperature in the range of an average low of -2.6°C (27.3°F) and an average high of 4.7°C (40.5°F).

Temperature

In Incheon, the average high-temperature drops, from a fresh 11.8°C (53.2°F) in November, to a cold 4.7°C (40.5°F). In December, in Incheon, the average low-temperature is -2.6°C (27.3°F).

Humidity

In Incheon, the average relative humidity is 62%.

Rainfall

The month with the least rainfall in Incheon is December when the rain falls for 7.3 days and typically collects 19.3mm (0.8") of precipitation.

Sea temperature

In Incheon, in December, the average water temperature is 8.8°C (47.8°F). Swimming in 8.8°C (47.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

With an average of 9.6h of daylight, December has the shortest days of the year in Incheon.

Sunshine

In December, the average sunshine is 5.5h.

What is the temperature in December in Incheon?

The average high-temperature, in December, in Incheon, is 4.7°C (40.5°F), while the average low-temperature is -2.6°C (27.3°F).

What is the average humidity in December in Incheon?

In December, the average relative humidity in Incheon is 62%.

How much does it rain in Incheon in December?

In Incheon, in December, it is raining for 7.3 days, with typically 19.3mm (0.8") of accumulated precipitation.

What is the driest month in Incheon?

The month with the least rainfall in Incheon, South Korea, is December when the rain falls for 7.3 days and typically collects 19.3mm (0.8") of precipitation.

What is the sea water temperature in December in Incheon?

In December, the average sea temperature in Incheon, South Korea, is 8.8°C (47.8°F). Swimming in 8.8°C (47.8°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the month with the shortest days in Incheon?

December has the shortest days of the year, with an average of 9.6h of daylight.

How many hours of daylight does Incheon have in December?

In Incheon, South Korea, the average length of the day in December is 9.6h.

How many hours of sunshine does Incheon have in December?

In December, the average sunshine in Incheon, South Korea, is 5.5h.
Average temperature in December - Incheon, South Korea
  • Average high temperature in December: 4.7°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).

  • Average low temperature in December: -2.6°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).

Average humidity in December - Incheon, South Korea
  • Average humidity in December: 62%

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

Average rainfall in December - Incheon, South Korea
  • Average rainfall in December: 19.3mm

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

Average rainfall days in December - Incheon, South Korea
  • Average rainfall days in December: 7.3 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).

Average sea temperature in December - Incheon, South Korea
  • Average sea temperature in December: 8.8°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).

Average daylight in December / Average sunshine in December - Incheon, South Korea
  • Average daylight in December: 9.6h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in December: 5.5h

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