Mazatlán Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Mazatlán, Sinaloa, Mexico. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.

Generally, Mazatlán has a moderate amount of precipitation, averaging 763 mm (30 in) of rainfall annually. However, it does experience a distinct dry season during certain months. Take a look at our detailed charts below to see the seasonal variation.

Monthly Precipitation Levels

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

The climate in Mazatlán shows significant variation throughout the year. Expect 225 mm (8.9 in) of precipitation during the wettest month September, distributed over 12 rainy days.

In contrast, April offers drier and sunnier days, with around 0.9 mm (0.04 in) of rainfall over 0 rainy days.

September, the wettest month, has a maximum daytime temperature of 32°C (90°F). The city receives 220 hours of sunshine in this period. During the driest month April you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Mazatlán Temperature page.

Mazatlán's average annual precipitation is 763 mm (30 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.

Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

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