Kodaikanal weather in September
September in Kodaikanal: nice, soaked, with clean air — fine if you can take 23 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#7 of 12 months in Kodaikanal · #952 of 1413 destinations to visit in September · comfort 70/100 (tier B)
- Days
- 20°C
- Nights
- 13°C
- Wet days
- 23
- Sun
- 9.1 h
- Humidity
- 83%
- Daylight
- 12 h

Traveller notes on Kodaikanal in September
Notes from nearby Kochi (139 km away)
Kodaikanal doesn't have its own notes for September yet — these are about Kochi, close enough to share the season.
Kerala-forum threads on September weather (Kochi specifically among the destinations discussed) describe it as the tail end of the southwest monsoon, rain subsiding from its peak but still a real presence most days rather than gone entirely. Posters are consistent it isn't a washout month - heavy rain doesn't fall constantly, more scattered showers between clearer stretches, and regulars call September an increasingly good pick as the greenery left behind by the monsoon peaks right around now. Crowds and prices both stay at their lowest, a genuine upside for budget-conscious travelers willing to accept some rain risk. Humidity remains high regardless of whether it's actively raining, the more constant discomfort. The record actually runs wetter than the tail-end framing implies: 30.6C days feeling like a punishing 37C, 24.5C nights, a notably high 263mm across 26.4 days, 88 percent humidity, a 29C sea and 7.7 hours of sun - still deep in the wet season by the numbers.
Other months in Kodaikanal
Forum posters describe August as monsoon season across the Western Ghats, with Kodaikanal seeing more rainy days than the rest of the year, though posters are consistent that rain doesn't fall continuously and conditions overall stay genuinely pleasant. One visitor's family reported daytime temperatures around 25C and nighttime lows near 15C, with intermittent showers rather than day-long downpours. Posters note August counts as off-season here, meaning lighter crowds alongside the wetter weather, and consistently recommend checking for rainfall alerts a few days ahead since conditions can shift. Posters generally rate August as genuinely rainy but still enjoyable for a Kodaikanal visit, an umbrella and flexible plans the main preparation needed.
Forum posters count February among the best months to visit this hill station: cool days with limited sunshine and genuinely chilly nights, but the misty, cold atmosphere is repeatedly called magical rather than a downside, and crowds are thin compared to the main holiday season. As a hill station well above the surrounding Tamil Nadu plains, Kodaikanal runs noticeably cooler than the lowland cities most visitors are arriving from - regulars advise packing real warm layers, since people expecting South Indian heat are routinely caught off guard by how cold the evenings get.
Add your own note from Kodaikanal's card on the map.
Kodaikanal climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Kodaikanal in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonschool holidays in 3 of the markets that fill it, an ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Kodaikanal's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKodaikanal's weather peaks February–April.
Best weatherFair weatherToughest weather
What's on in Kodaikanal in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Cloud in the valley
15 Jun – 20 Nov · usuallyFog seasonRiskTwo monsoons in a row put the town inside the cloud for much of the second half of the year. Coaker's Walk and the viewpoints show you white and nothing else, and the ghat road gets slippery and slow.
- Season
Wet season
MonsoonRisk23 rainy days and about 294 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Nearby, and something's on
Within 300 km of Kodaikanal — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Kodaikanal?
Kodaikanal in September — FAQ
- Is September a good time to visit Kodaikanal?
- September in Kodaikanal: nice, soaked, with clean air — fine if you can take 23 rainy days. It ranks #7 of 12 months for Kodaikanal on SeasonMap's comfort score (70/100).
- What is the weather like in Kodaikanal in September?
- In September, Kodaikanal averages a daily high of 20.4°C and a low of 13.1°C, with about 293.6 mm of rain over roughly 22.9 rainy days.
- What is the air quality in Kodaikanal in September?
- Kodaikanal has a mean US Air Quality Index of about 25 in September.
Within 300 km: Alleppey's Champions Boat League around 15 Sep – 10 Dec, and Varkala's Cliff shuts for the monsoon around 25 May – 15 Sep.