Average annual temperature is 23.0 °C
Absolute maximum temperature: 38.7 °C
Absolute minimum temperature: 7.2 °C
Number of sunny days: 144 days
Number of rainy days: 221 days
Look at detailed online map of 21 De Setiembre
* Weather data for 21 De Setiembre Paraguay is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.8 | 33.8 | 33.8 | 31.7 | 29.1 | 28.3 | 30.3 | 34.2 | 38.7 | 37.1 | 38.3 | 37.1 |
| Average daytime temperature (°C) | 30.9 | 29.1 | 30.0 | 27.0 | 25.6 | 23.0 | 24.8 | 27.0 | 31.1 | 31.0 | 31.1 | 31.9 |
| Average temperature (°C) | 25.4 | 23.9 | 24.6 | 21.7 | 20.1 | 17.7 | 19.3 | 21.1 | 24.6 | 25.0 | 25.6 | 26.4 |
| Average night temperature (°C) | 21.2 | 20.1 | 20.9 | 17.8 | 16.3 | 13.7 | 15.5 | 16.9 | 19.9 | 20.8 | 21.6 | 22.5 |
| Absolute minimum temperature (°C) | 18.1 | 12.8 | 18.5 | 11.4 | 10.2 | 7.2 | 7.2 | 11.3 | 9.7 | 15.2 | 11.0 | 18.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.5 | 10.9 | 10.7 | 10.8 | 11.3 | 12.0 | 12.7 | 13.3 | 13.6 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.2 | 9.8 | 9.7 | 8.8 | 8.2 | 7.6 | 7.9 | 9.2 | 8.6 | 9.1 | 9.3 | 10.4 |
| Precipitation (mm) | 165 | 204 | 184 | 262 | 73 | 66 | 75 | 135 | 89 | 305 | 290 | 195 |
| Sunny days | 10 | 6 | 5 | 11 | 16 | 20 | 18 | 20 | 14 | 10 | 8 | 6 |
| Rainy days | 21 | 22 | 26 | 19 | 15 | 10 | 13 | 11 | 16 | 21 | 22 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in 21 De Setiembre is at