Busan
South Korea
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Busan, South Korea

The Haedong Yonggungsa Temple set on a beautiful hillside in Busan, South Korea
The Haedong Yonggungsa Temple set on a beautiful hillside in Busan, South Korea
January, like December, is a frosty winter month in Busan, South Korea, with average temperature varying between 7.8°C (46°F) and -0.6°C (30.9°F).

Temperature

The coldest month is January, with an average high-temperature of 7.8°C (46°F) and an average low-temperature of -0.6°C (30.9°F).

Humidity

With an average relative humidity of 48.3%, January is the least humid month in Busan.

Rainfall

In Busan, during January, the rain falls for 5.5 days and regularly aggregates up to 34.4mm (1.4") of precipitation. Throughout the year, in Busan, South Korea, there are 98.3 rainfall days, and 1519.1mm (59.8") of precipitation is accumulated.

Sea temperature

In Busan, the average seawater temperature is 14.7°C (58.5°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

The average length of the day is 10.1h.

Sunshine

The average sunshine in January is 6.4h.

UV index

Months with the lowest UV index in Busan are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for average individuals.
The daily maximum UV index of 2 interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the coldest month in Busan?

With an average high-temperature of 7.8°C (46°F) and an average low-temperature of -0.6°C (30.9°F), January is the coldest month in Busan.

What is the temperature in January in Busan?

The average high-temperature, in January, is 7.8°C (46°F), while the average low-temperature is -0.6°C (30.9°F).

What is the least humid month in Busan?

January is the least humid month in Busan, with an average relative humidity of 48.3%.

What is the average humidity in January in Busan?

The average relative humidity in January in Busan is 48.3%.

How much does it rain in Busan in January?

In Busan, South Korea, in January, during 5.5 rainfall days, 34.4mm (1.4") of precipitation is typically accumulated.

How cold is the water in January in Busan?

In Busan, South Korea, in January, the average water temperature is 14.7°C (58.5°F). Swimming in 14.7°C (58.5°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.

What is the average length of the day in January in Busan?

The average length of the day in January in Busan is 10.1h.

How many hours of sunshine does Busan have in January?

In Busan, the average sunshine in January is 6.4h.

When is the lowest UV index in Busan?

January and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January in Busan?

The average daily maximum UV index in January in Busan, South Korea, is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in January - Busan, South Korea
  • Average high temperature in January: 7.8°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (7.8°C).

  • Average low temperature in January: -0.6°C

The month with the highest average low temperature is August (23.4°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).

Average humidity in January - Busan, South Korea
  • Average humidity in January: 48.3%

The month with the highest relative humidity is July (84.3%).
The month with the lowest relative humidity is January (48.3%).

Average rainfall in January - Busan, South Korea
  • Average rainfall in January: 34.4mm

The wettest month (with the highest rainfall) is July (316.9mm).
The driest month (with the lowest rainfall) is December (22.8mm).

Average rainfall days in January - Busan, South Korea
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is July (13.6 days).
The month with the lowest number of rainy days is December (4.2 days).

Average sea temperature in January - Busan, South Korea
  • Average sea temperature in January: 14.7°C

The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).

Average daylight in January / Average sunshine in January - Busan, 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: 6.4h

The month with most sunshine is May (Average sunshine: 7.2h).
The month with least sunshine is July (Average sunshine: 5.3h).

Average UV index in January - Busan, South Korea
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 2).