Diourbel Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Diourbel, Senegal. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's explore all the details to give you a full picture.
Diourbel maintains relatively dry conditions year-round, with an average annual precipitation of 424 mm (17 in). However, it does have a distinct dry season during certain months, creating distinct seasonal patterns visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Diourbel can be quite wet during August, receiving approximately 167 mm (6.6 in) of precipitation over 12 rainy days.
In contrast April, experiences much drier conditions, with 0.1 mm (0 in) of rainfall, spread across 0 rainy days.
August, the wettest month, has a maximum daytime temperature of 33°C (91°F). The city receives 233 hours of sunshine in this period. During the driest month April you can expect a temperature of 38°C (100°F). For more detailed insights into the city's temperatures, visit our Diourbel 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 June
Explore Diourbel's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Diourbel spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Senegal: City Comparison
The map below shows the annual precipitation across Senegal. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Diourbel vs World: Rainfall Compared
Diourbel's average annual precipitation is 424 mm (17 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.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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 Diourbel:
- 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.
- 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 Diourbel's weather, including sunshine hours, humidity levels, and temperature data, visit our Diourbel Climate page.
