Average annual temperature is 28.3 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: 18.5 °C
Number of sunny days: 165 days
Number of rainy days: 200 days
Look at detailed online map of As Sumaylīyah
* Weather data for As Sumaylīyah Yemen is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.3 | 31.5 | 34.5 | 36.8 | 38.4 | 37.9 | 40.1 | 38.8 | 38.6 | 40.8 | 32.7 | 31.5 |
| Average daytime temperature (°C) | 28.5 | 29.9 | 30.3 | 33.2 | 33.8 | 36.5 | 37.5 | 36.0 | 35.5 | 33.5 | 31.1 | 29.8 |
| Average temperature (°C) | 23.9 | 25.1 | 26.2 | 28.7 | 29.5 | 31.6 | 32.7 | 31.7 | 30.7 | 28.3 | 26.5 | 25.0 |
| Average night temperature (°C) | 19.7 | 20.7 | 22.5 | 24.6 | 25.8 | 27.6 | 28.3 | 27.7 | 26.5 | 24.4 | 22.6 | 20.5 |
| Absolute minimum temperature (°C) | 18.5 | 19.0 | 20.5 | 22.0 | 23.3 | 25.3 | 25.8 | 25.9 | 24.9 | 21.5 | 20.6 | 18.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.5 | 12.8 | 13.0 | 12.9 | 12.6 | 12.2 | 11.8 | 11.4 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.3 | 10.7 | 10.5 | 11.3 | 10.6 | 10.8 | 10.4 | 10.5 | 10.7 | 10.2 | 10.2 | 10.0 |
| Precipitation (mm) | 6 | 1 | 62 | 36 | 49 | 20 | 10 | 37 | 35 | 23 | 23 | 1 |
| Sunny days | 23 | 23 | 10 | 6 | 5 | 9 | 22 | 10 | 8 | 11 | 12 | 26 |
| Rainy days | 8 | 5 | 21 | 24 | 26 | 21 | 9 | 21 | 22 | 20 | 18 | 5 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in As Sumaylīyah is at