Cabo San Lucas Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Cabo San Lucas, Baja California Sur, Mexico. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's break down all the details for a clearer picture.

Cabo San Lucas typically sees modest rainfall throughout the year, with an average annual precipitation of 284 mm (11 in). The city experiences a distinct dry season during certain months, as illustrated in the graph below.

Monthly Precipitation Levels

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

The climate in Cabo San Lucas shows significant variation throughout the year. Expect 127 mm (5 in) of precipitation during the wettest month September, distributed over 5 rainy days.

In contrast, May offers drier and sunnier days, with around 0.4 mm (0.02 in) of rainfall over 0 rainy days.

September, the wettest month, has a maximum daytime temperature of 33°C (91°F). During the driest month May you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Cabo San Lucas Temperature page.

Cabo San Lucas's average annual precipitation is 284 mm (11 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm (25 in), evenly distributed across the year with no extreme wet or dry seasons.

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

In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.

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.

Climate change is affecting precipitation patterns worldwide, including Cabo San Lucas:

• 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 Cabo San Lucas's weather, including sunshine hours, humidity levels, and temperature data, visit our Cabo San Lucas Climate page.