Ouoran Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Ouoran, Senegal. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's explore all the details to give you a full picture.
Ouoran tends toward drier weather patterns, receiving approximately 403 mm (16 in) of rain per year. The city experiences a distinct dry season during certain months, contributing to seasonal contrasts shown in the charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Ouoran can be quite wet during August, receiving approximately 176 mm (6.9 in) of precipitation over 13 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 30°C (86°F). The city receives 223 hours of sunshine in this period. During the driest month April you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Ouoran 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 Ouoran's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Ouoran 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
Ouoran vs World: Rainfall Compared
Ouoran's average annual precipitation is 403 mm (16 in). Let's compare this to some popular worldwide tourist destinations:
The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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.
- "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
- The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
- The greatest snowfall recorded was on Mt. Rainier, Washington State, USA—over 31.5 meters (103 feet) fell during the winter of 1972.
For more detailed information about Ouoran's weather, including sunshine hours, humidity levels, and temperature data, visit our Ouoran Climate page.