Jambiani Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Jambiani, Zanzibar, Tanzania. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.
Jambiani is known for its substantial rainfall, with annual precipitation reaching 1120 mm (44 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Rainfall & Rainy Days
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Jambiani shows significant variation throughout the year. Expect 280 mm (11 in) of precipitation during the wettest month April, distributed over 17 rainy days.
In contrast, September offers drier and sunnier days, with around 30 mm (1.2 in) of rainfall over 7 rainy days.
April, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 154 hours of sunshine in this period. During the driest month September you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Jambiani Temperature page.
Daily Historical Precipitation
Average daily rainfall for each day of the month based on long-term records. 48-year average (1976-2025)
Average precipitation in September
Explore Jambiani's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Jambiani spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Tanzania: City Comparison
The map below shows the annual precipitation across Tanzania. You can also select the different months in case you are interested in a specific month.
Jambiani vs World: Rainfall Compared
Jambiani's average annual precipitation is 1120 mm (44 in). Let's compare this to some popular worldwide tourist destinations:
In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.
Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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 Jambiani's weather, including sunshine hours, humidity levels, and temperature data, visit our Jambiani Climate page.
Jambiani Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jambiani - and find the best time to visit.
Jambiani 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Jambiani climate overview or explore weather in Tanzania.
Popular this month
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Climb the Kilimanjaro
The Kilimanjaro with its 5895 meters (19340 ft) is the roof of Africa. Climbing Kilimanjaro is a crazy experience and if you like adventure it’s an absolute must for the bucket list.
The Serengeti
The Serengeti has wide, unending grasslands and is known for its spectacular sunsets. The park also offers the biggest wildlife population in the whole of Africa.
Walk Safari In the Selous Game Reserve
We feel the Selous Game Reserve is undoubtedly one of the most beautiful nature reserves in Tanzania and we recommend adding it to your bucket list. Here you can still experience the real Africa.
5 Untouched Safari Destinations in Africa
Discover Africa's hidden national parks, from Zambia's Liuwa Plain to Zimbabwe's Matusadona, offering unique wildlife experiences off the beaten path.