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

This page shows the average amount of rainfall per month in Gdynia. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s explore all the details to give you a full picture.

Generally, Gdynia experiences moderate precipitation patterns, averaging 791 mm yearly.

Monthly Precipitation Levels

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

While rainfall varies throughout the year, each season offers its own charm. July brings wetter days averaging 94 mm of precipitation, spread over 13 rainy days.

In contrast, April experiences a drier climate, with about 47 mm of rainfall spread across 12 rainy days.

July, the city’s wettest month, has a maximum daytime temperature of 22°C. During the driest month April you can expect a temperature of 11°C. For more detailed insights into the city’s temperatures, visit our Gdynia Temperature page.

Annual Precipitation in Poland

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

Amsterdam Precipitation Compared World Wide

Gdynia’s average annual precipitation is 791 mm. Let’s compare this to some popular worldwide tourist destinations:

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

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

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

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

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 Gdynia’s weather, including sunshine hours, humidity levels, and temperature data, visit our Gdynia Climate page.