Average annual temperature is 25.8 °C
Absolute maximum temperature: 37.8 °C
Absolute minimum temperature: 16.7 °C
Number of sunny days: 138 days
Number of rainy days: 227 days
Look at detailed online map of Niteroi
* Weather data for Niteroi 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) | 33.1 | 33.5 | 34.6 | 30.9 | 29.8 | 30.0 | 31.1 | 36.0 | 37.0 | 37.8 | 37.1 | 36.4 |
| Average daytime temperature (°C) | 30.2 | 31.1 | 29.8 | 29.4 | 28.4 | 27.2 | 28.4 | 31.2 | 33.1 | 35.0 | 34.8 | 34.0 |
| Average temperature (°C) | 25.4 | 25.9 | 25.3 | 24.6 | 24.0 | 22.7 | 22.8 | 25.2 | 26.7 | 28.7 | 29.3 | 28.8 |
| Average night temperature (°C) | 21.2 | 21.4 | 21.3 | 20.6 | 20.5 | 19.5 | 18.2 | 19.7 | 20.6 | 22.1 | 23.2 | 23.5 |
| Absolute minimum temperature (°C) | 19.5 | 19.3 | 18.4 | 18.0 | 18.7 | 18.0 | 16.7 | 17.2 | 18.9 | 19.8 | 21.2 | 21.1 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 12.5 | 12.6 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 10.6 | 10.9 | 9.6 | 10.1 | 8.4 | 7.4 | 9.2 | 9.7 | 10.5 | 11.2 | 11.2 | 10.8 |
| Precipitation (mm) | 72 | 46 | 63 | 34 | 33 | 64 | 22 | 11 | 5 | 1 | 5 | 22 |
| Sunny days | 4 | 5 | 7 | 5 | 4 | 2 | 6 | 15 | 20 | 28 | 21 | 21 |
| Rainy days | 27 | 23 | 24 | 25 | 27 | 28 | 25 | 16 | 10 | 3 | 9 | 10 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Niteroi is at