Imperatriz Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Imperatriz, Maranhão, Brazil. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.

Imperatriz is known for its substantial rainfall, with annual precipitation reaching 1285 mm (51 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.

Monthly Precipitation Levels

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

Imperatriz can be quite wet during February, receiving approximately 240 mm (9.4 in) of precipitation over 26 rainy days.

In contrast August, experiences much drier conditions, with 3.1 mm (0.1 in) of rainfall, spread across 12 rainy days.

February, the wettest month, has a maximum daytime temperature of 32°C (90°F). During the driest month August you can expect a temperature of 36°C (97°F). For more detailed insights into the city's temperatures, visit our Imperatriz Temperature page.

Imperatriz's average annual precipitation is 1285 mm (51 in). Let's compare this to some popular worldwide tourist destinations:

Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.

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

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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 proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

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