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

May 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
The last month of the spring, May, is a pleasant month in Busan, South Korea, with average temperature fluctuating between 14.1°C (57.4°F) and 21.7°C (71.1°F).

Temperature

In May, the average high-temperature slightly increases, from an enjoyable 18.2°C (64.8°F) in April, to a pleasant 21.7°C (71.1°F). In Busan, South Korea, in May, the average low-temperature is 14.1°C (57.4°F).

Humidity

In May, the average relative humidity in Busan is 69.8%.

Rainfall

In Busan, in May, it is raining for 9.4 days, with typically 157.4mm (6.2") of accumulated precipitation. Throughout the year, in Busan, there are 98.3 rainfall days, and 1519.1mm (59.8") of precipitation is accumulated.

Sea temperature

In Busan, the average seawater temperature in May is 16.8°C (62.2°F). For most, swimming in 16.8°C (62.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In May, the average length of the day in Busan, South Korea, is 14h.

Sunshine

May has the most sunshine of the year, with an average of 7.2h of sunshine.

UV index

In May, the average daily maximum UV index in Busan, South Korea, is 9. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays for ordinary individuals.
In May, the average maximum UV index of 9 translate into the following recommendations:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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 May in Busan?

In May, in Busan, the average high-temperature is 21.7°C (71.1°F), and the average low-temperature is 14.1°C (57.4°F).

What is the average humidity in May in Busan?

The average relative humidity in May in Busan is 69.8%.

How many days does it rain in May in Busan?

In Busan, during May, the rain falls for 9.4 days and regularly aggregates up to 157.4mm (6.2") of precipitation.

What is the sea water temperature in May in Busan?

In May, the average sea temperature is 16.8°C (62.2°F). Swimming in 16.8°C (62.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Busan have in May?

In Busan, the average length of the day in May is 14h.

What month has the most sunshine in Busan?

May has the most sunshine of the year in Busan, South Korea, with an average of 7.2h of sunshine.

How many hours of sunshine does Busan have in May?

The average sunshine in May in Busan is 7.2h.

What is the UV index intensity in May in Busan?

The average daily maximum UV index in May in Busan is 9. A UV Index reading of 8 to 10 represents a very high health threat from the exposure to the Sun's UV radiation.
Average temperature in May - Busan, South Korea
  • Average high temperature in May: 21.7°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 May: 14.1°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 May - Busan, South Korea
  • Average humidity in May: 69.8%

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 May - Busan, South Korea
  • Average rainfall in May: 157.4mm

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 May - Busan, South Korea
  • Average rainfall days in May: 9.4 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 May - Busan, South Korea
  • Average sea temperature in May: 16.8°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 May / Average sunshine in May - Busan, South Korea
  • Average daylight in May: 14h

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 May: 7.2h

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 May - Busan, South Korea
  • Average UV index in May: 9

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).