Weather in Mysuru in September

Shoulder season. September is shoulder season in Mysuru — cheaper, quieter, and a genuine gamble. You should expect rain on 20 days of the month, which is more days wet than dry.

September ranks 8 of 12 in Mysuru: past the worst of the year but short of December, which is the month to book if the dates are open.

Rain on 20 of the month's 30 days, 4 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Pack for 28.5 °C days and 19.5 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: 7 days top 30 °C — hot spells arrive, but they break. Across the twenty years measured, the hottest September day reached 34.7 °C and the coldest night fell to 16.8 °C, and the wettest single day dropped 41 mm — roughly 30% of the month's rain in one day.

September is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest September on record still delivered 270 mm against 33 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 138 mm average is a reasonable planning figure, not a promise.

Wind is light at 9.6 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 81%, high enough to notice on the warm days without dominating them.

How September sits in the year

Temperatures hold steady either side: 28.4 °C in August, 28.5 here, 28.1 in October. Nothing about the timing within the month matters much.

Daylight in September

Mysuru sits close enough to the equator that daylight barely moves all year — 12.2 hours in September, against a range of just 1.4 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

An inland climate

Despite being inland, the year stays fairly even: 20.5 °C between the year's warmest afternoons and coldest nights. At 757 m the air is thin enough to matter — sun that burns faster than the temperature suggests, and nights that cool off quickly.

How busy it gets

Quiet. Few other visitors, cheaper rooms, and a real chance some seasonal operators are shut.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

September in Mysuru versus nearby

If Mysuru is one option among several, the nearby comparison is worth making. Bengaluru is close enough to be a coin toss — within a degree on temperature, 2 days less rain. Coimbatore is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: September is a compromise. December is 30 points better and is what Mysuru is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Mysuru

See all twelve months in Mysuru, or where else to go in September.