Punta Arenas Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Punta Arenas, Magallanes, Chile. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's explore the details to provide you with a complete overview.

On average, Punta Arenas receives a reasonable amount of rain/snowfall, with an annual precipitation of 724 mm (29 in).

Monthly Precipitation Levels

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

The wettest period in Punta Arenas occurs in April, which receives around 76 mm (3 in) of precipitation. During the driest month, September, Punta Arenas experiences moderate rainfall, totaling approximately 48 mm (1.9 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate.

April, the wettest month, has a maximum daytime temperature of 11°C (52°F). The city receives 117 hours of sunshine in this period. During the driest month September you can expect a temperature of 9°C (48°F). For more detailed insights into the city's temperatures, visit our Punta Arenas Temperature page.

Punta Arenas's average annual precipitation is 724 mm (29 in). Let's compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.

In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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 Punta Arenas's weather, including sunshine hours, humidity levels, and temperature data, visit our Punta Arenas Climate page.