Bijilo Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Bijilo, Gambia. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Generally, Bijilo experiences moderate precipitation patterns, averaging 681 mm (27 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Bijilo shows significant variation throughout the year. Expect 269 mm (11 in) of precipitation during the wettest month August, distributed over 17 rainy days.
In contrast, April offers drier and sunnier days, with around 0.1 mm (0 in) of rainfall over 0 rainy days.
August, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 190 hours of sunshine in this period. During the driest month April you can expect a temperature of 27°C (81°F). For more detailed insights into the city's temperatures, visit our Bijilo Temperature page.
Daily Historical Precipitation
41-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Bijilo's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Bijilo spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in the Gambia: City Comparison
The map below shows the annual precipitation across the Gambia. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Bijilo vs World: Rainfall Compared
Bijilo's average annual precipitation is 681 mm (27 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.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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 Bijilo's weather, including sunshine hours, humidity levels, and temperature data, visit our Bijilo Climate page.
