San Martín Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows both the average monthly rainfall and the number of rainy days in San Martín, Mendoza Province, Argentina. Long-term data from 1990 to 2020 was used to calculate these averages. Let’s explore the details to provide you with a complete overview.

San Martín has a relatively dry climate with low precipitation, averaging 413 mm of rain/snowfall annually.

Monthly Precipitation Levels

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

San Martín can be quite wet during January, receiving approximately 70 mm of precipitation over 6 rainy days.

In contrast July, experiences much drier conditions, with 8.9 mm of rainfall, spread across 2 rainy days.

January, the wettest month, has a maximum daytime temperature of 34°C. The city receives 311 hours of sunshine in this period. During the driest month July you can expect a temperature of 16°C. For more detailed insights into the city’s temperatures, visit our San Martín Temperature page.

Annual Precipitation in Argentina

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

Amsterdam Precipitation Compared World Wide

San Martín’s average annual precipitation is 413 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.

In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Ho Chi Minh City, Vietnam, receives 1955 mm of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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