Banjul Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Banjul, Gambia. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.
Generally, Banjul receives mid-range precipitation levels, with 695 mm (27 in) annually. The distribution varies significantly throughout the year, with a distinct dry season during certain months, as shown in our charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, August receives substantial rainfall, averaging 276 mm (11 in) of precipitation, recorded across 17 rainy days.
In contrast, the driest month, April brings less rainfall, with 0.1 mm (0 in) 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 26°C (79°F). For more detailed insights into the city's temperatures, visit our Banjul 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 Banjul's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Banjul 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
Banjul vs World: Rainfall Compared
Banjul's average annual precipitation is 695 mm (27 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.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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 Banjul's weather, including sunshine hours, humidity levels, and temperature data, visit our Banjul Climate page.
