Valparaíso Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Valparaíso, Valparaíso Region, Chile. These averages rely on historical data collected over 30 years, from 1990 to 2020. Let's explore the details to provide you with a complete overview.

Valparaíso maintains relatively dry conditions year-round, with an average annual precipitation of 386 mm (15 in). However, it does have a distinct dry season during certain months, creating distinct seasonal patterns visible in our monthly breakdown below.

Monthly Precipitation Levels

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

The climate in Valparaíso shows significant variation throughout the year. Expect 122 mm (4.8 in) of precipitation during the wettest month June, distributed over 3 rainy days.

In contrast, January offers drier and sunnier days, with around 1.4 mm (0.1 in) of rainfall over 2 rainy days.

June, the wettest month, has a maximum daytime temperature of 15°C (59°F). The city receives 80 hours of sunshine in this period. During the driest month January you can expect a temperature of 20°C (68°F). For more detailed insights into the city's temperatures, visit our Valparaíso Temperature page.

Valparaíso's average annual precipitation is 386 mm (15 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed 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.

Precipitation has a very strong role in determining the local climate and ecosystem:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

• "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 Valparaíso's weather, including sunshine hours, humidity levels, and temperature data, visit our Valparaíso Climate page.