Delfzijl Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Delfzijl, Groningen Province, Netherlands. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let’s explore all the details to give you a full picture.
Generally, Delfzijl receives mid-range precipitation levels, with 916 mm annually.
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 99 mm of precipitation, spread over 16 rainy days.
In contrast, April experiences a drier climate, with about 58 mm of rainfall spread across 15 rainy days.
July, the wettest month, has a maximum daytime temperature of 22°C. The city receives 214 hours of sunshine in this period. During the driest month April you can expect a temperature of 14°C. For more detailed insights into the city’s temperatures, visit our Delfzijl Temperature page.
Annual Precipitation in the Netherlands
The map below shows the annual precipitation across the Netherlands. You can also select the different months in case you are interested in a specific month.





Amsterdam Precipitation Compared World Wide
Delfzijl’s average annual precipitation is 916 mm. Let’s compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm, evenly distributed across the year with no extreme wet or dry seasons.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
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 Delfzijl’s weather, including sunshine hours, humidity levels, and temperature data, visit our Delfzijl Climate page.