Average annual temperature is 26.8 °C
Absolute maximum temperature: 33.9 °C
Absolute minimum temperature: 19.2 °C
Number of sunny days: 123 days
Number of rainy days: 242 days
Look at detailed online map of Kollam
* Weather data for Kollam 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) | 31.1 | 32.1 | 33.9 | 33.3 | 33.5 | 31.3 | 29.6 | 31.7 | 31.8 | 30.3 | 31.0 | 32.2 |
| Average daytime temperature (°C) | 29.5 | 30.7 | 32.0 | 32.3 | 31.6 | 29.4 | 27.7 | 29.5 | 28.1 | 29.3 | 29.8 | 30.3 |
| Average temperature (°C) | 25.5 | 26.9 | 28.1 | 28.8 | 28.4 | 26.7 | 25.3 | 26.6 | 25.5 | 26.4 | 26.6 | 26.7 |
| Average night temperature (°C) | 21.3 | 22.9 | 23.7 | 25.2 | 25.6 | 24.5 | 23.4 | 24.1 | 23.5 | 23.6 | 23.7 | 23.3 |
| Absolute minimum temperature (°C) | 19.2 | 19.6 | 20.4 | 22.5 | 23.7 | 23.3 | 22.7 | 23.1 | 22.8 | 22.3 | 22.3 | 21.2 |
| 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) | 11.5 | 11.8 | 12.1 | 12.4 | 12.6 | 12.8 | 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) | 10.4 | 10.8 | 11.1 | 11.4 | 9.1 | 8.1 | 5.9 | 10.9 | 7.2 | 9.1 | 9.0 | 9.6 |
| Precipitation (mm) | 6 | 0 | 6 | 85 | 202 | 431 | 660 | 95 | 618 | 273 | 185 | 80 |
| Sunny days | 27 | 26 | 26 | 10 | 2 | 0 | 0 | 3 | 0 | 4 | 7 | 18 |
| Rainy days | 4 | 2 | 5 | 20 | 29 | 30 | 31 | 28 | 30 | 27 | 23 | 13 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kollam is at