Fortaleza Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Fortaleza, Ceará, Brazil. 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.
Fortaleza has a relatively rainy climate with high precipitation levels, averaging 1079 mm (42 in) of rainfall annually. Despite the high annual total, it does experience a distinct dry season during certain months. Examine our detailed charts below to understand these seasonal patterns.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Fortaleza shows significant variation throughout the year. Expect 266 mm (10 in) of precipitation during the wettest month April, distributed over 29 rainy days.
In contrast, September offers drier and sunnier days, with around 8 mm (0.3 in) of rainfall over 14 rainy days.April, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 156 hours of sunshine in this period. During the driest month September you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our Fortaleza Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Explore Fortaleza's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Fortaleza spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Brazil: City Comparison
The map below shows the annual precipitation across Brazil. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Fortaleza vs World: Rainfall Compared
Fortaleza's average annual precipitation is 1079 mm (42 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.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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.
- Mawsynram in India is noted as being the wettest place on earth, with over 11 meters (36 feet) of rain falling every year.
- In contrast, Antofagasta in Chile is among the driest places on the planet, getting less than 0.1mm (0.004 inches) per year, with some years recording virtually no rainfall.
- Nearly 1,650 thunderstorm cells are estimated over the planet at any given time.
For more detailed information about Fortaleza's weather, including sunshine hours, humidity levels, and temperature data, visit our Fortaleza Climate page.
