Iaşi Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Iaşi, Iaşi, Romania. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's explore all the details to give you a full picture.
On average, Iaşi receives a reasonable amount of rain/snowfall, with an annual precipitation of 619 mm (24 in). Despite this overall moderate level, the city experiences distinct dry season during certain months throughout the year, as illustrated in the precipitation charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Iaşi can be quite wet during June, receiving approximately 83 mm (3.3 in) of precipitation over 14 rainy days.
In contrast January, experiences much drier conditions, with 35 mm (1.4 in) of snow/rainfall, spread across 12 snowy/rainy days.
June, the wettest month, has a maximum daytime temperature of 27°C (81°F). The city receives 261 hours of sunshine in this period. During the driest month January you can expect a temperature of 2°C (36°F). For more detailed insights into the city's temperatures, visit our Iaşi Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Iaşi's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Iaşi spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Romania: City Comparison
The map below shows the annual precipitation across Romania. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Iaşi vs World: Rainfall Compared
Iaşi's average annual precipitation is 619 mm (24 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.
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.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Iaşi's weather, including sunshine hours, humidity levels, and temperature data, visit our Iaşi Climate page.
