San Carlos Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in San Carlos, Sonora, Mexico. This average is based on long-term data collected between 1990 and 2020. Now, let's break down all the details for a clearer picture.

San Carlos is known for its low rainfall, with yearly precipitation amounts around 188 mm (7.4 in).

Monthly Precipitation Levels

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

The climate in San Carlos shows significant variation throughout the year. Expect 69 mm (2.7 in) of precipitation during the wettest month September, distributed over 3 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 34°C (93°F). During the driest month May you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our San Carlos Temperature page.

Annual Rainfall in Mexico: City Comparison

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

Annual

Annual

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Legend

heavy rainfall

high

moderate

low

almost none

Heavy annual rainfall has been defined as more than 1000 mm (39 in) precipitation. High: 600 mm (24 in) to 1000 mm (39 in). Moderate: 250 mm (9.8 in) to 600 mm (24 in). Low: less than 250 mm (9.8 in).

San Carlos vs World: Rainfall Compared

San Carlos's average annual precipitation is 188 mm (7.4 in). Let's compare this to some popular worldwide tourist destinations:

Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.

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

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

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

Interesting weather facts

The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
Approximately 70% of lightning bolts strike land rather than oceans.
A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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

Current rainfall in San Carlos

10-Day Forecast