Rainfall/ Precipitation in Cairo, Egypt
- Cairo receives 26 mm (1 in) of rainfall per year, or 2.2 mm (0.1 in) per month.
- On average there are 12 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 1 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in May thru September when an average of 0 mm (0 in) of rainfall (precipitation) occurs.
- The wettest weather is in January when an average of 7 mm (0.3 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 7 (0.28) | 4 (0.2) | 4 (0.2) | 2 (0.1) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (0) | 3 (0.1) | 5 (0.2) | 26 (1) | |
 | Precipitation Litres/m² (Gallons/ft²) | 7 (0.17) | 4 (0.1) | 4 (0.1) | 2 (0.05) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (0.02) | 3 (0.07) | 5 (0.12) | 26 (0.64) | |
 | Number of Wet Days (probability of rain on a day) | 3 (10%) | 2 (7%) | 1 (3%) | 1 (3%) | 1 (3%) | 0 (0%) | 0 (0%) | 0 (0%) | 0.5 (2%) | 1 (3%) | 1 (3%) | 2 (6%) | 12.5 (3%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 67 (33) | 69 (31) | 74 (26) | 74 (26) | 77 (23) | 83 (17) | 85 (15) | 87 (13) | 82 (18) | 84 (16) | 76 (24) | 63 (37) | 79 (21) |