The short answer
When to go to Kolli Hills
August to October is the best window: the hills are green, the waterfalls are in strong flow and the Valvil Ori festival falls in August. November to February is cooler and drier, good for treks and temple visits. March to May is warmer and the views can be hazy. For seniors, early mornings and the cooler months make the ghat road and the viewpoints more comfortable, and heavy rain days are best skipped.
Month by month
Kolli Hills weather by month
| Month | High | Low | Rain | Verdict | What to expect |
|---|---|---|---|---|---|
| January | — | — | — | Cool and mostly dry on the plateau; pleasant for temples and viewpoints | |
| February | — | — | — | Dry and comfortable; waterfalls thinner | |
| March | — | — | — | Warming up; haze can dull the views | |
| April | — | — | — | Hotter on the plains climb; go early | |
| May | — | — | — | Warmest spell; rely on mornings | |
| June | — | — | — | Cooler air as the south-west monsoon sets in; some showers | |
| July | — | — | — | Green hills, damp paths; take care on steps | |
| August | — | — | — | Valvil Ori festival month; waterfalls and forest at their freshest | |
| September | — | — | — | Green, flowing waterfalls; showers possible | |
| October | — | — | — | Waterfalls in good flow; clearer days between showers | |
| November | — | — | — | Northeast monsoon showers; mist and cool air | |
| December | — | — | — | Cool, mostly drier; good for treks |
Temperatures and rainfall are long-term monthly averages. Check the forecast a few days before you travel.
Seasons at a glance
Kolli Hills seasons for families and seniors
The easiest months: August, September and October
- August: Valvil Ori festival month; waterfalls and forest at their freshest
- September: Green, flowing waterfalls; showers possible
- October: Waterfalls in good flow; clearer days between showers
Good, with small trade-offs: January, February, June, July, November and December
- January: Cool and mostly dry on the plateau; pleasant for temples and viewpoints
- February: Dry and comfortable; waterfalls thinner
- June: Cooler air as the south-west monsoon sets in; some showers
- July: Green hills, damp paths; take care on steps
- November: Northeast monsoon showers; mist and cool air
- December: Cool, mostly drier; good for treks
Possible, with planning: March, April and May
- March: Warming up; haze can dull the views
- April: Hotter on the plains climb; go early
- May: Warmest spell; rely on mornings
Useful answers
Best time to visit Kolli Hills: FAQs
What is the best month to visit Kolli Hills?
August, September and October are the best months to visit Kolli Hills, with January, February, June, July, November and December also good. August to October is the best window: the hills are green, the waterfalls are in strong flow and the Valvil Ori festival falls in August. November to February is cooler and drier, good for treks and temple visits. March to May is warmer and the views can be hazy. For seniors, early mornings and the cooler months make the ghat road and the viewpoints more comfortable, and heavy rain days are best skipped.