Average annual temperature is 20.5 °C
Absolute maximum temperature: 37.6 °C
Absolute minimum temperature: 5.3 °C
Number of sunny days: 137 days
Number of rainy days: 228 days
Look at detailed online map of Viamão
* Weather data for Viamão 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) | 35.9 | 37.6 | 33.5 | 32.0 | 28.9 | 27.8 | 27.8 | 30.7 | 32.1 | 27.9 | 32.3 | 37.0 |
| Average daytime temperature (°C) | 30.2 | 29.6 | 29.7 | 24.8 | 22.4 | 20.8 | 19.2 | 21.1 | 22.2 | 22.4 | 24.9 | 28.7 |
| Average temperature (°C) | 25.6 | 24.7 | 25.1 | 20.7 | 18.6 | 16.8 | 15.5 | 16.3 | 18.3 | 18.7 | 21.0 | 24.3 |
| Average night temperature (°C) | 21.8 | 20.6 | 21.9 | 17.3 | 15.8 | 13.5 | 12.5 | 12.6 | 15.3 | 15.9 | 17.7 | 21.0 |
| Absolute minimum temperature (°C) | 19.1 | 15.3 | 18.8 | 12.0 | 10.2 | 5.3 | 5.7 | 5.5 | 8.7 | 9.9 | 13.2 | 14.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.2 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.1 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 11.8 | 10.8 | 10.0 | 8.5 | 7.1 | 6.7 | 6.8 | 8.3 | 5.9 | 7.9 | 7.7 | 10.7 |
| Precipitation (mm) | 77 | 69 | 93 | 40 | 128 | 200 | 169 | 118 | 410 | 164 | 189 | 104 |
| Sunny days | 6 | 9 | 6 | 13 | 17 | 14 | 16 | 18 | 9 | 12 | 10 | 7 |
| Rainy days | 25 | 19 | 25 | 17 | 14 | 16 | 15 | 13 | 21 | 19 | 20 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Viamão during the most sunny months:
The largest precipitation sum in Viamão is at