Ribeiradio Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Ribeiradio, Portugal. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.

Ribeiradio has a relatively rainy climate with high precipitation levels, averaging 1508 mm (59 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry and rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

The seasons in Ribeiradio, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 198 mm (7.8 in) of precipitation. This rainfall is distributed across 14 rainy days.

In contrast, the driest month, July, experiences much less rainfall, totaling 25 mm (1 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

October, the wettest month, has a maximum daytime temperature of 21°C (70°F). The city receives 187 hours of sunshine in this period. During the driest month July you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Ribeiradio Temperature page.

Annual Rainfall in Portugal: City Comparison

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.

Ribeiradio vs World: Rainfall Compared

Ribeiradio's average annual precipitation is 1508 mm (59 in). Let's compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

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.

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• "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 (15 inches) wide and 20 cm (7.9 inches) 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 (103 feet) fell during the winter of 1972.

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