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
May, the last month of the spring, in Busan, is an agreeable month, 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 marginally rises, from an enjoyable 18.2°C (64.8°F) in April, to an agreeable 21.7°C (71.1°F). The average low-temperature, in May, is 14.1°C (57.4°F).

Humidity

In May, the average relative humidity is 69.8%.

Rainfall

In Busan, during 9.4 rainfall days, 157.4mm (6.2") of precipitation is typically accumulated. In Busan, 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, South Korea, the average seawater temperature in May is 16.8°C (62.2°F).
Note: For swimming, a surface water temperature of 16.8°C (62.2°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

The average length of the day in May is 14h.

Sunshine

The month with the most sunshine in Busan is May, with an average of 7.2h of sunshine.

UV index

In Busan, the average daily maximum UV index is 9. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to the UV radiation for average individuals.
Note: 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Busan?

The average high-temperature, in May, in Busan, South Korea, is 21.7°C (71.1°F), while the average low-temperature is 14.1°C (57.4°F).

What is the average humidity in May in Busan?

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

How many days does it rain in May in Busan?

In Busan, in May, it is raining for 9.4 days, with typically 157.4mm (6.2") of accumulated precipitation.

What is the sea temperature in May in Busan?

In Busan, South Korea, in May, the average water temperature 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).

How many hours of daylight does Busan have in May?

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

What month has the most sunshine in Busan?

The month with the most sunshine is May, with an average of 7.2h of sunshine.

How many hours of sunshine does Busan have in May?

The average sunshine in May is 7.2h.

What is the UV index reading in May in Busan?

In Busan, South Korea, the average daily maximum UV index in May is 9. A UV Index estimate of 8 to 10 represents a very high health threat from unsafe exposure to the Sun's UV rays.
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).