Puducherry Weather, AQI and Fuel Prices

Why Check Puducherry Weather & Data?

Puducherry is one of India's smallest and strangest territories to govern: a Union Territory split across four non-contiguous enclaves, Puducherry town itself, Karaikal roughly 150km south, Yanam tucked inside Andhra Pradesh's Godavari delta, and Mahe on the Kerala coast, together home to 1,247,953 people at the 2011 Census and estimated near 1.7 million by 2025 on third-party demographic projections. Tourism and manufacturing carry very different weight across that geography. Puducherry town's French Quarter, roughly 250 heritage buildings inside White Town's 1.5 square kilometres, helped draw 2.12 million domestic and about 18,000 foreign visitors in 2024, while a manufacturing base built up over decades of lower local taxes now accounts for over 42 percent of the UT's GSDP, an unusually industrial share for a territory this size. The government's own liquor trade adds a third, distinctly Puducherry income stream: excise revenue crossed ₹1,000 crore for the first time in 2021-22, much of it from Tamil Nadu residents crossing the border for cheaper alcohol. This page's live weather, AQI and fuel numbers serve very different readers depending on which enclave and which economy they're checking, a White Town hotelier watching a long-weekend forecast, a PIPDIC industrial estate manager tracking a cyclone advisory, a Karaikal paddy farmer following the northeast monsoon, a Yanam resident checking conditions for an enclave hundreds of kilometres from the territory's own capital.

Cyclone Landfalls, Northeast Monsoon Floods: Puducherry's Two Real Risks

Puducherry's defining weather risk isn't heat, it is the northeast monsoon and the Bay of Bengal cyclones that ride in on it, the same system that drives Tamil Nadu's weather since Puducherry sits geographically inside that state. Cyclone Fengal made landfall directly at Puducherry on the evening of November 30, 2024, and dumped what local officials called the highest rainfall in 30 years, reported as roughly 46cm to 48cm in 24 hours depending on the agency, surpassing the previous record of 21cm set in October 2004. Streets across Puducherry town flooded within hours, vehicles were submerged, power went out across most localities by 11pm, and the Indian Army evacuated more than 100 residents from Jeeva Nagar and other low-lying colonies the next morning; crop damage across Puducherry, Karaikal and Yanam topped 10,000 hectares, with the government pledging ₹30,000 per hectare in compensation. A year earlier, Cyclone Michaung, which made landfall near Bapatla in neighbouring Andhra Pradesh on December 5, 2023, forced Puducherry, Karaikal and Yanam to shut every school and college on December 4 as the storm's outer bands crossed the territory; the broader storm killed 17 people and caused an estimated $1.32 billion in damage across Tamil Nadu and Andhra Pradesh. Both storms landed within a year of each other, evidence that a UT this size can face a major cyclone almost annually.

How to Use Puducherry's Data for Daily Decisions

White Town's hoteliers and homestay owners, who depend on weekend footfall from Chennai and Bengaluru, should check the cyclone tracker before confirming a long-weekend booking calendar in October and November, since both Fengal and Michaung struck within days of major travel weekends. Tourists planning a heritage walk or a cycling tour through the French Quarter should check the hour-by-hour rain forecast before setting out, since White Town's narrow, low-lying streets flood within an hour of a heavy burst. Karaikal's paddy farmers, working a delta that behaves like the rest of the Cauvery basin, should track the northeast monsoon's actual onset each October rather than the calendar date, exactly as growers do just across the Tamil Nadu border a few kilometres away. Yanam residents and the enclave's small fishing fleet, sitting inside Andhra Pradesh's Godavari delta rather than near the capital, should watch Andhra Pradesh's own cyclone advisories rather than assume a warning issued for Puducherry town applies to them. PIPDIC industrial estate managers running pharmaceutical and textile units should build cyclone contingency into October-December production schedules, since a landfall anywhere on this stretch of coast can cut power to inland units for days, as it did during Michaung.

Puducherry's Seasonal Calendar

Like the rest of Tamil Nadu, Puducherry gets comparatively little from the June-September southwest monsoon and depends on the northeast monsoon, arriving in October and running through December, for close to half its annual rainfall, 48 percent by one IMD-linked estimate, though a separate long-term academic study puts the northeast share as high as 63 percent. Cyclone season on the Bay of Bengal runs the same October-to-December stretch, exactly when Fengal and Michaung both struck in consecutive years. Summer, March to June, is hot and comparatively dry, with the southwest monsoon's brief June-September window mainly watering the western edge of the territory rather than the coast itself. Winter, January and February, is short, mild and the calmest stretch for tourism, heritage walks and outdoor weddings in White Town. Bastille Day on July 14 and Puducherry's French cultural calendar draw visitors outside the main October-December risk window, while Pongal in mid-January falls at the tail of the northeast monsoon's retreat. Anyone booking travel to Puducherry, Karaikal or Yanam in November or early December should check the cyclone tracker alongside the ordinary forecast, not instead of it.

Puducherry vs Nearby States: Weather & Data Comparison

Tamil Nadu and Andhra Pradesh figures are reused from this site's own already-published pages for internal consistency; Puducherry figures are freshly sourced. Treat this as a broad reference, not a single-source dataset.