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

This page shows the average amount of rainfall per month in Gangtok. 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.

Gangtok has a notably wet climate with abundant precipitation, recording 5153 mm of rain/snowfall per year.

Monthly Precipitation Levels

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

The climate in Gangtok shows significant variation throughout the year. Expect 1092 mm of precipitation during the wettest month July, distributed over 19 rainy days.

In contrast, December offers drier and sunnier days, with around 186 mm of rainfall over 0 rainy days.

July, the city’s wettest month, has a maximum daytime temperature of 22°C. During the driest month December you can expect a temperature of 13°C. For more detailed insights into the city’s temperatures, visit our Gangtok Temperature page.

Annual Precipitation in India

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

Amsterdam Precipitation Compared World Wide

Gangtok’s average annual precipitation is 5153 mm. Let’s compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm of rainfall annually, with precipitation evenly distributed throughout the year.

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

In Brisbane, Australia, the annual precipitation is 979 mm, making it wetter than Sydney.

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.

Interesting weather facts

• "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 wide and 20 cm 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 fell during the winter of 1972.

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