Tbilisi City Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in Tbilisi City, Tbilisi Region, Georgia. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's now guide you through the details for a complete overview.

Generally, Tbilisi City has a moderate amount of precipitation, averaging 720 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

The climate in Tbilisi City shows significant variation throughout the year. Expect 110 mm of precipitation during the wettest month May, distributed over 15 rainy days.

In contrast, January offers drier and sunnier days, with around 30 mm of snow/rainfall over 9 snowy/rainy days.

May, the wettest month, has a maximum daytime temperature of 21°C. The city receives 213 hours of sunshine in this period. During the driest month January you can expect a temperature of 5°C. For more detailed insights into the city’s temperatures, visit our Tbilisi City Temperature page.

Annual Precipitation in Georgia

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

Amsterdam Precipitation Compared World Wide

Tbilisi City’s average annual precipitation is 720 mm. Let’s compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm, spread fairly evenly throughout the year.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

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

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Tbilisi City:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

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