Average annual temperature is 26.9 °C
Absolute maximum temperature: 36.2 °C
Absolute minimum temperature: 20.0 °C
Number of sunny days: 81 days
Number of rainy days: 284 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) | 33.8 | 36.1 | 36.2 | 33.5 | 32.2 | 30.5 | 29.5 | 30.5 | 29.1 | 30.3 | 31.9 | 32.5 |
| Average daytime temperature (°C) | 31.8 | 32.2 | 33.0 | 31.7 | 30.6 | 29.3 | 28.1 | 29.2 | 27.6 | 28.7 | 29.9 | 30.4 |
| Average temperature (°C) | 26.5 | 26.6 | 28.1 | 28.0 | 27.9 | 26.9 | 26.1 | 26.7 | 25.6 | 26.2 | 26.6 | 27.2 |
| Average night temperature (°C) | 23.1 | 22.6 | 24.7 | 24.7 | 25.4 | 24.7 | 24.3 | 24.4 | 23.9 | 23.9 | 24.4 | 24.6 |
| Absolute minimum temperature (°C) | 22.1 | 20.0 | 23.5 | 23.6 | 23.6 | 23.4 | 23.1 | 22.7 | 23.2 | 22.9 | 23.8 | 23.3 |
| 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) | 11.7 | 11.8 | 12.1 | 12.3 | 12.5 | 12.6 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.6 |
| 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) | 10.3 | 10.5 | 11.1 | 10.7 | 9.5 | 8.9 | 8.0 | 11.0 | 6.6 | 9.0 | 8.5 | 9.1 |
| Precipitation (mm) | 30 | 12 | 49 | 128 | 198 | 237 | 296 | 115 | 511 | 365 | 249 | 219 |
| Sunny days | 22 | 23 | 15 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 15 |
| Rainy days | 9 | 5 | 16 | 28 | 31 | 30 | 31 | 31 | 30 | 31 | 26 | 16 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Kollam is at