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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Pulse Hub Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Check the live forecast above for Chennai’s current conditions, then plan around the tropical climate’s distinct wet and dry seasons — the city stays warm year-round but shifts from humid monsoons to drier winter months.
What is the typical weather pattern for Chennai?
Chennai has a tropical wet-and-dry climate with consistent heat and two monsoon periods. The southwest monsoon (June–September) brings moderate rain, while the northeast monsoon (October–December) delivers the heaviest downpours and cyclone risk.
- Summer (March–May): Hot and humid, daily highs around 35–40°C, occasional thunderstorms
- Winter (December–February): Mild and drier, lows near 20°C, comfortable for outdoor activities
- Northeast monsoon (Oct–Dec): Heavy rain, potential for flooding and cyclones — check severe weather warnings before travel
- Humidity remains above 60% most of the year, especially near the coast
How does the northeast monsoon affect daily planning?
From October to December, forecast confidence drops and rain can disrupt transport — check the live forecast above and plan for short, intense downpours. For updates on chennai weather today and weather in chennai tomorrow, the radar on this page shows approaching storms.
- November typically sees the highest rainfall — avoid low‑lying areas during heavy spells
- Temperatures barely drop, but strong winds and cyclonic storms can arrive from the Bay of Bengal
- If you are tracking bangalore weather or coimbatore weather, note that they are inland and less affected by this monsoon
What is the best time to visit Chennai for pleasant weather?
December to February offers the most comfortable conditions: temperatures around 29°C with lower humidity. March–May is very hot, while October–November brings heavy rain. June–September has moderate heat with occasional rain.
Does Chennai ever get cyclones?
Yes, the Bay of Bengal generates cyclones that often hit Chennai between October and December. The northeast monsoon intensifies these storms. Always monitor official warnings from the India Meteorological Department and our severe weather page.
How accurate are 15‑day forecasts for Chennai?
Extended outlooks — like chennai weather forecast 15 days or chennai weather forecast 30 days — show broad trends but become unreliable beyond 7–10 days. For short‑term decisions, rely on the live forecast above and updates from the chennai weatherman social accounts for local nuance.