Average annual temperature is 25.9 °C
Absolute maximum temperature: 38.4 °C
Absolute minimum temperature: 16.0 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of Iaçu
* Weather data for Iaçu Brazil is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.4 | 36.4 | 36.2 | 36.3 | 31.1 | 32.5 | 32.7 | 34.1 | 37.0 | 37.8 | 38.4 | 37.6 |
| Average daytime temperature (°C) | 31.5 | 34.2 | 32.5 | 32.6 | 29.6 | 29.1 | 29.0 | 30.3 | 32.4 | 34.3 | 35.2 | 35.0 |
| Average temperature (°C) | 26.1 | 27.6 | 26.3 | 26.6 | 24.6 | 23.6 | 23.3 | 24.2 | 25.6 | 27.1 | 28.2 | 28.2 |
| Average night temperature (°C) | 21.6 | 22.4 | 21.7 | 21.8 | 20.6 | 18.9 | 18.5 | 19.4 | 20.4 | 21.7 | 22.9 | 23.2 |
| Absolute minimum temperature (°C) | 20.0 | 20.3 | 18.6 | 18.8 | 17.7 | 16.4 | 16.0 | 16.3 | 17.3 | 19.3 | 20.0 | 21.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.8 | 12.5 | 12.2 | 11.8 | 11.5 | 11.4 | 11.5 | 11.7 | 12.0 | 12.4 | 12.7 | 12.9 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 11.2 | 11.3 | 10.4 | 10.3 | 8.8 | 8.2 | 9.1 | 9.6 | 9.8 | 10.0 | 10.6 | 10.6 |
| Precipitation (mm) | 57 | 40 | 85 | 41 | 95 | 39 | 58 | 14 | 15 | 7 | 31 | 49 |
| Sunny days | 1 | 3 | 2 | 3 | 6 | 11 | 7 | 8 | 5 | 13 | 10 | 11 |
| Rainy days | 30 | 25 | 29 | 27 | 25 | 19 | 24 | 23 | 25 | 18 | 20 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Iaçu is at