Rainfall/ Precipitation in Zanzibar, Tanzania
- Zanzibar receives 1684 mm (66.3 in) of rainfall per year, or 140.3 mm (5.5 in) per month.
- The driest weather is in August when an average of 47 mm (1.9 in) of rainfall (precipitation) occurs.
- The wettest weather is in April when an average of 401 mm (15.8 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jul | Aug | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 48 (1.9) | 47 (1.9) | 50 (2) | 97 (3.8) | 226 (8.9) | 194 (7.6) | 89 (3.5) | 56 (2.2) | 153 (6) | 401 (15.8) | 255 (10) | 68 (2.7) | 1684 (66.3) | |
 | Precipitation Litres/m² (Gallons/ft²) | 48 (1.18) | 47 (1.15) | 50 (1.23) | 97 (2.38) | 226 (5.54) | 194 (4.76) | 89 (2.18) | 56 (1.37) | 153 (3.75) | 401 (9.84) | 255 (6.25) | 68 (1.67) | 1684 (41.3) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 62 (38) | 71 (29) | 69 (31) | 67 (33) | 58 (42) | 65 (35) | 61 (39) | 59 (41) | 61 (39) | 47 (53) | 60 (40) | 61 (39) | 63 (37) |