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

April 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
April in Busan, South Korea, is a comfortable spring month, with average temperature fluctuating between 9.9°C (49.8°F) and 18.2°C (64.8°F).

Temperature

In Busan, the average high-temperature marginally rises, from a mild 13.4°C (56.1°F) in March, to an enjoyable 18.2°C (64.8°F). In Busan, in April, the average low-temperature is 9.9°C (49.8°F).

Humidity

In Busan, the average relative humidity in April is 62.7%.

Rainfall

In Busan, during April, the rain falls for 9.1 days and regularly aggregates up to 132.7mm (5.2") of precipitation. In Busan, South Korea, during the entire year, the rain falls for 98.3 days and collects up to 1519.1mm (59.8") of precipitation.

Sea temperature

In Busan, the average seawater temperature in April is 14.8°C (58.6°F). Swimming in 14.8°C (58.6°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

The average length of the day in April is 13.1h.

Sunshine

In Busan, the average sunshine in April is 7h.

UV index

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in April in Busan?

In April, the average high-temperature is 18.2°C (64.8°F), and the average low-temperature is 9.9°C (49.8°F).

What is the average humidity in April in Busan?

In Busan, the average relative humidity in April is 62.7%.

How much does it rain in Busan in April?

In Busan, in April, it is raining for 9.1 days, with typically 132.7mm (5.2") of accumulated precipitation.

What is the sea water temperature in April in Busan?

In Busan, in April, the average water temperature is 14.8°C (58.6°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.

How many hours of daylight does Busan have in April?

In April, the average length of the day in Busan is 13.1h.

How long on average sun shines in April in Busan?

In April, the average sunshine in Busan is 7h.

What is the UV index reading in April in Busan?

The average daily maximum UV index in April in Busan is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to the UV radiation.
Average temperature in April - Busan, South Korea
  • Average high temperature in April: 18.2°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 April: 9.9°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 April - Busan, South Korea
  • Average humidity in April: 62.7%

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 April - Busan, South Korea
  • Average rainfall in April: 132.7mm

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 April - Busan, South Korea
  • Average rainfall days in April: 9.1 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 April - Busan, South Korea
  • Average sea temperature in April: 14.8°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 April / Average sunshine in April - Busan, South Korea
  • Average daylight in April: 13.1h

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 April: 7h

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 April - Busan, South Korea
  • Average UV index in April: 7

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).