Chennai, Tamil Nadu Weather
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16-day forecast for Chennai
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About Chennai weather
Chennai lies in Tamil Nadu's eastern coastal plain along the Bay of Bengal, which — unlike most of India — gets its main rains from the retreating north-east monsoon — about 280 km north-east of Salem. Expect a hot summer (April–June) with highs often in the high 30s°C. The rainy season is the north-east monsoon (October–December) — Tamil Nadu's principal rainy season — with a weaker south-west monsoon contribution (June–September) mainly over the western interior. Winter brings a mild, short winter (December–January) with little temperature drop near the coast. This page shows live, auto-refreshing weather for Chennai: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: Asia/Kolkata.
Frequently asked questions
Chennai is about 280 km north-east of Salem, in Tamil Nadu.
Chennai gets the north-east monsoon (October–December) — Tamil Nadu's principal rainy season — with a weaker south-west monsoon contribution (June–September) mainly over the western interior.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Chennai's exact coordinates. No fixed schedule, the page updates whenever you load it.
Yes, use the "View live radar" link on this page for real-time precipitation radar centered on Chennai.
Yes, where the AQI panel above shows a value. It's sourced from the same live air-quality provider used across TodayWeather. If it reads "not available," air-quality coverage doesn't currently extend to this location.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
The current temperature for Chennai updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
The hourly forecast above shows the rain chance for Chennai hour by hour — the 16-day outlook further down covers the rest of the week.
Chennai's live UV index is in the metrics panel above, shown alongside a low/moderate/high band so it's easy to tell when sun protection is worth it.
Chennai's current relative humidity is in the humidity ring near the top of this page, with more detail in the metrics section below.
Chennai's day-to-day weather is shaped by its position in Tamil Nadu, India — close enough to the coast for humidity to matter. See the hourly weather forecast or the air quality index for more detail.