Ulsan
South Korea
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Ulsan, South Korea

December, the first month of the winter, in Ulsan, is still a chilly month, with average temperature varying between 9.9°C (49.8°F) and -0.3°C (31.5°F).

Temperature

In Ulsan, the average high-temperature in December drops, from a mild 15.8°C (60.4°F) in November, to a frosty 9.9°C (49.8°F). The average low-temperature, in December, is -0.3°C (31.5°F).

Humidity

In December, the average relative humidity is 52.4%.

Rainfall

The month with the least rainfall is December when the rain falls for 3.9 days and typically collects 23mm (0.9") of precipitation.

Sea temperature

In Ulsan, in December, the average water temperature is 15.8°C (60.4°F).
Note: Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

Daylight

The month with the shortest days in Ulsan is December, with an average of 9.8h of daylight.

Sunshine

In Ulsan, the average sunshine in December is 6.3h.

What is the temperature in December in Ulsan?

In December, the average high-temperature is 9.9°C (49.8°F), and the average low-temperature is -0.3°C (31.5°F).

What is the average humidity in December in Ulsan?

The average relative humidity in December in Ulsan, South Korea, is 52.4%.

How much does it rain in Ulsan in December?

In Ulsan, South Korea, in December, it is raining for 3.9 days, with typically 23mm (0.9") of accumulated precipitation.

What is the driest month in Ulsan?

December is the month with the least rainfall. Rain falls for 3.9 days and accumulates 23mm (0.9") of precipitation.

What is the sea water temperature in December in Ulsan?

In Ulsan, the average seawater temperature in December is 15.8°C (60.4°F). Swimming in 15.8°C (60.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Ulsan?

With an average of 9.8h of daylight, December has the shortest days of the year in Ulsan, South Korea.

How many hours of daylight does Ulsan have in December?

The average length of the day in December is 9.8h.

How many hours of sunshine does Ulsan have in December?

In December, the average sunshine in Ulsan, South Korea, is 6.3h.
Average temperature in December - Ulsan, South Korea
  • Average high temperature in December: 9.9°C

The warmest month (with the highest average high temperature) is August (30°C).
The month with the lowest average high temperature is January (7.3°C).

  • Average low temperature in December: -0.3°C

The month with the highest average low temperature is August (22.7°C).
The coldest month (with the lowest average low temperature) is January (-2.3°C).

Average humidity in December - Ulsan, South Korea
  • Average humidity in December: 52.4%

The month with the highest relative humidity is July (78.9%).
The month with the lowest relative humidity is January (49.6%).

Average rainfall in December - Ulsan, South Korea
  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is August (240.3mm).
The driest month (with the lowest rainfall) is December (23mm).

Average rainfall days in December - Ulsan, South Korea
  • Average rainfall days in December: 3.9 days

The month with the highest number of rainy days is July (13.5 days).
The month with the lowest number of rainy days is December (3.9 days).

Average sea temperature in December - Ulsan, South Korea
  • Average sea temperature in December: 15.8°C

The best month for swimming (with the highest average sea temperature) is August (25.6°C).
The coldest month (with the lowest average sea temperature) is March (12.3°C).

Average daylight in December / Average sunshine in December - Ulsan, South Korea
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 6.3h

Months with most sunshine are April and May (Average sunshine: 6.9h).
The month with least sunshine is July (Average sunshine: 4.9h).