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

This page shows the average amount of rainfall per month in Coimbra. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Generally, Coimbra has a moderate amount of precipitation, averaging 983 mm of rainfall annually.

Monthly Precipitation Levels

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

The climate in Coimbra shows significant variation throughout the year. Expect 127 mm of precipitation during the wettest month October, distributed over 13 rainy days.

In contrast, July offers drier and sunnier days, with around 12 mm of rainfall over 6 rainy days.

October, the city’s wettest month, has a maximum daytime temperature of 22°C and receives 187 hours of sunshine. During the driest month July you can expect a temperature of 29°C. For more detailed insights into the city’s temperatures, visit our Coimbra Temperature page.

Annual Precipitation in Portugal

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

Amsterdam Precipitation Compared World Wide

Coimbra’s average annual precipitation is 983 mm. Let’s compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm of annual precipitation, including significant snowfall during the winter.

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

Adelaide, Australia, enjoys 511 mm of annual precipitation, with dry summers and wet winters.

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