Last 7 days
Today
36° / 27° High / Low (°C)
74% Humidity
37% Rain probability
Drizzle Condition
~4h Rain duration
What this means
In Chennai on 24 Sep 2026, rain is possible: 37% chance, up to 1.3 mm forecast (source: Open-Meteo).
Rain is possible today but not certain — 37% chance of light rain, possibly for 4 hours. Carrying something compact is reasonable.
Rain season
Chennai's primary rain comes from the northeast monsoon October–December, making it unusual among Indian cities where the southwest monsoon dominates. Cyclones forming in the Bay of Bengal are a real risk October–November and can bring extreme rainfall in short windows. The southwest monsoon (June–September) passes mostly to the west, leaving Chennai relatively dry.
Elsewhere in India