Gangneung Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Gangneung, Gangwon-Do, South Korea. This average is based on long-term data collected between 1990 and 2020. Now, let's explore all the details to give you a full picture.
Gangneung has a relatively rain/snowy climate with high precipitation levels, averaging 1312 mm (52 in) of rain/snowfall annually. Despite the high annual total, it does experience a distinct rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Gangneung can be quite wet during August, receiving approximately 220 mm (8.7 in) of precipitation over 14 rainy days.
In contrast December, experiences much drier conditions, with 45 mm (1.8 in) of snow/rainfall, spread across 5 snowy/rainy days.
August, the wettest month, has a maximum daytime temperature of 27°C (81°F). The city receives 137 hours of sunshine in this period. During the driest month December you can expect a temperature of 6°C (43°F). For more detailed insights into the city's temperatures, visit our Gangneung Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Gangneung's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Gangneung spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in South Korea: City Comparison
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.
heavy rainfall
high
moderate
low
almost none
Gangneung vs World: Rainfall Compared
Gangneung's average annual precipitation is 1312 mm (52 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Gangneung's weather, including sunshine hours, humidity levels, and temperature data, visit our Gangneung Climate page.
