Average annual temperature is 27.9 °C
Absolute maximum temperature: 39.0 °C
Absolute minimum temperature: 17.9 °C
Number of sunny days: 93 days
Number of rainy days: 272 days
Look at detailed online map of Viswanāthapuram
* Weather data for Viswanāthapuram India is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.1 | 31.7 | 35.4 | 36.7 | 37.8 | 39.0 | 38.8 | 38.7 | 35.0 | 34.0 | 31.3 | 32.2 |
| Average daytime temperature (°C) | 29.0 | 29.8 | 32.6 | 34.7 | 33.9 | 35.0 | 34.2 | 35.0 | 32.5 | 32.0 | 29.4 | 28.8 |
| Average temperature (°C) | 24.4 | 24.6 | 27.7 | 29.6 | 29.8 | 30.3 | 29.7 | 30.0 | 28.9 | 27.9 | 25.8 | 25.9 |
| Average night temperature (°C) | 20.7 | 20.6 | 23.5 | 25.4 | 26.6 | 27.0 | 26.6 | 26.7 | 26.2 | 24.7 | 23.2 | 23.6 |
| Absolute minimum temperature (°C) | 17.9 | 18.4 | 21.2 | 23.7 | 23.7 | 25.2 | 24.7 | 24.4 | 24.0 | 22.9 | 21.4 | 22.0 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.7 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 11.5 |
| 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) | 10.0 | 10.2 | 11.0 | 11.1 | 9.6 | 9.7 | 8.4 | 11.2 | 10.0 | 10.4 | 7.3 | 8.0 |
| Precipitation (mm) | 19 | 66 | 33 | 47 | 93 | 114 | 48 | 114 | 152 | 267 | 728 | 142 |
| Sunny days | 13 | 20 | 13 | 11 | 17 | 6 | 5 | 4 | 0 | 0 | 0 | 4 |
| Rainy days | 18 | 8 | 18 | 19 | 14 | 24 | 26 | 27 | 30 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Viswanāthapuram is at