What August feels like in Chennai
August falls in Chennai's wet season — the rainfall numbers rise clearly above the dry months. Midday heat is intense, and most people keep to shade or air-conditioning in the afternoon. Nights bring little relief: even the coolest hour of the night stays very warm. The air carries some moisture, so hot spells feel a little sticky.
Rain in Chennai in August
Dry days are the exception, with rain on about every other day. A rainy day brings about 7.6 mm (0.3 in) on average — steady rain rather than a passing shower. The yearly figure is similar, around 9.2 mm per wet day.
Daylight and sunshine in August
Mid-month, Chennai gets 12 h 34 min of daylight, from sunrise near 5:57 am to sunset near 6:31 pm. Compared with mid-July, the day has lost 16 min. Close to the equator, sunrise and sunset times move very little through the year. Measured sunshine covers about 70% of the daylight — there are plenty of bright spells.
How August compares to the rest of the year
August is the 5th warmest month of the year in Chennai. Compared with July, afternoons are 1°C (1.8°F) cooler, with 45 mm more rain. Temperatures keep falling into September. By September, typical highs are 32.5°C (90.5°F).
Who August suits
- Sightseeing: less ideal — rain falls on more than half the days.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Beach: a good fit — hot coastal weather.
- Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.
Tips for visiting Chennai in August
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sun Protection
Loose, breathable clothing plus sunscreen and a wide-brimmed hat.
Quick questions
How warm is Chennai in August?
It feels very hot: typical highs are 33.1°C (91.6°F), with lows near 26.2°C (79.2°F).
Does it rain a lot in Chennai in August?
Quite a lot — 137 mm spread over about 18 days.
What should I wear in Chennai in August?
Pack rain protection and sun protection. There is little need to change for the evening.
Is August or September better for visiting Chennai?
August, narrowly: it ranks #11 of 12 among Chennai's months, against #12 for the other. September has more rainy days.