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Busan Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Busan. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Busan has a relatively rain/snowy climate with high precipitation levels, averaging 1367 mm of rain/snowfall annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Busan can be quite wet during July, receiving approximately 233 mm of precipitation over 14 rainy days.

In contrast December, experiences much drier conditions, with 32 mm of rainfall, spread across 5 rainy days.

July, the city’s wettest month, has a maximum daytime temperature of 28°C and receives 173 hours of sunshine. During the driest month December you can expect a temperature of 11°C. For more detailed insights into the city’s temperatures, visit our Busan Temperature page.

Annual Precipitation in South Korea

The map below shows the annual precipitation across South Korea. You can also select the different months in case you are interested in a specific month.

Annual
Map not visible? Whoops sorry! Please refresh the page.
Legend heavy rainfall high moderate low almost none
Heavy annual rainfall has been defined as more than 1000 mm precipitation. High: 600 mm to 1000 mm. Moderate: 250 mm to 600 mm. Low: less than 250 mm.

Amsterdam Precipitation Compared World Wide

Busan’s average annual precipitation is 1367 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.

Singapore, situated near the equator, gets 2581 mm of rainfall annually, with no distinct dry season and consistent monthly precipitation.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Interesting weather facts

  • Mawsynram in India is noted as being the wettest place on earth, with over 11 meters of rain falling every year.
  • In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm per year, with some years recording virtually no rainfall.
  • Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.

For more detailed information about Busan’s weather, including sunshine hours, humidity levels, and temperature data, visit our Busan Climate page.


Current rainfall in Busan

Fri   Dec 27
7°C | -3°C
NW 5 m/s
almost clear and no rain

almost clear and no rain

Sat   Dec 28
5°C | -2°C
NW 6 m/s
clear and no rain

clear and no rain

Sun   Dec 29
8°C | -2°C
W 6 m/s
almost clear and no rain

almost clear and no rain

Interested in more climate information?

This site provides you with all the information you need about the climate in Busan.

Our site offers climate and forecast data for every country in the world. Are you going to South Korea? On this website you can find historical weather averages for many cities in South Korea. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.