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

January weather forecast and climate
Ulsan, South Korea

January, the same as December, in Ulsan, South Korea, is another chilly winter month, with average temperature fluctuating between 7.3°C (45.1°F) and -2.3°C (27.9°F).

Temperature

The coldest month is January, with an average high-temperature of 7.3°C (45.1°F) and an average low-temperature of -2.3°C (27.9°F).

Humidity

January is the least humid month in Ulsan, with an average relative humidity of 49.6%.

Rainfall

In Ulsan, South Korea, during January, the rain falls for 5.3 days and regularly aggregates up to 34.3mm (1.4") of precipitation. Throughout the year, in Ulsan, South Korea, there are 97.9 rainfall days, and 1277.1mm (50.3") of precipitation is accumulated.

Sea temperature

In Ulsan, the average seawater temperature in January is 13.9°C (57°F).
Note: Swimming in 13.9°C (57°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Ulsan, the average length of the day is 10.1h.

Sunshine

In Ulsan, the average sunshine in January is 6.2h.

What is the coldest month in Ulsan?

With an average high-temperature of 7.3°C (45.1°F) and an average low-temperature of -2.3°C (27.9°F), January is the coldest month.

What is the temperature in January in Ulsan?

In January, the average high-temperature is 7.3°C (45.1°F), and the average low-temperature is -2.3°C (27.9°F).

What is the least humid month in Ulsan?

The least humid month in Ulsan, South Korea, is January, with an average relative humidity of 49.6%.

What is the average humidity in January in Ulsan?

In January, the average relative humidity in Ulsan is 49.6%.

How many days does it rain in January in Ulsan?

In Ulsan, South Korea, in January, it is raining for 5.3 days, with typically 34.3mm (1.4") of accumulated precipitation.

How cold is the water in January in Ulsan?

In January, the average sea temperature in Ulsan, South Korea, is 13.9°C (57°F). Swimming in 13.9°C (57°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Ulsan have in January?

In January, the average length of the day in Ulsan is 10.1h.

How long on average sun shines in January in Ulsan?

In Ulsan, the average sunshine in January is 6.2h.
Average temperature in January - Ulsan, South Korea
  • Average high temperature in January: 7.3°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 January: -2.3°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 January - Ulsan, South Korea
  • Average humidity in January: 49.6%

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 January - Ulsan, South Korea
  • Average rainfall in January: 34.3mm

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 January - Ulsan, South Korea
  • Average rainfall days in January: 5.3 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 January - Ulsan, South Korea
  • Average sea temperature in January: 13.9°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 January / Average sunshine in January - Ulsan, South Korea
  • Average daylight in January: 10.1h

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 January: 6.2h

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