Dongtan Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Dongtan, Gyeonggi-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.

Dongtan experiences significant rain/snowfall throughout the year, averaging 1198 mm (47 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry season during certain months. You can clearly see this in our monthly precipitation graphs below.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The climate in Dongtan shows significant variation throughout the year. Expect 287 mm (11 in) of precipitation during the wettest month July, distributed over 16 rainy days.

In contrast, January offers drier and sunnier days, with around 24 mm (0.9 in) of snow/rainfall over 8 snowy/rainy days.

July, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 187 hours of sunshine in this period. During the driest month January you can expect a temperature of 4°C (39°F). For more detailed insights into the city's temperatures, visit our Dongtan Temperature page.

Dongtan's average annual precipitation is 1198 mm (47 in). Let's compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

• Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
• In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) 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 Dongtan's weather, including sunshine hours, humidity levels, and temperature data, visit our Dongtan Climate page.