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

This page shows the average amount of rainfall per month in Medan. The numbers are calculated over a 30-year period to provide a reliable average. Let's now guide you through the details for a complete overview.

Medan has a notably wet climate with abundant precipitation, recording 3192 mm of rainfall per year.

Monthly Precipitation Levels

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

Medan offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between November (377 mm) and February (177 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

November, the city’s wettest month, has a maximum daytime temperature of 31°C and receives 106 hours of sunshine. During the driest month February you can expect a temperature of 32°C. For more detailed insights into the city’s temperatures, visit our Medan Temperature page.

Annual Precipitation in Indonesia

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

Amsterdam Precipitation Compared World Wide

Medan’s average annual precipitation is 3192 mm. Let’s compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm, evenly distributed across the year with no extreme wet or dry seasons.

Osaka, Japan, experiences 1507 mm of rainfall annually, spread across the year with wetter summers.

Melbourne, Australia, has 690 mm of rainfall annually, spread fairly evenly throughout the year.

Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

How Does Precipitation Affect Local Climate?

Precipitation has a very strong role in determining the local climate and ecosystem:

• Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.
• Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

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