Andaman & Nicobar Weather, AQI and Fuel Prices

Why Check Andaman & Nicobar Weather & Data?

Andaman & Nicobar Islands is India's most isolated union territory, home to roughly 4.05 lakh people in 2025 spread across a 572-island archipelago, barely up from 3.81 lakh at the 2011 Census. The economy runs on two pillars that couldn't look more different: tourism, which brought 7,10,397 domestic and 11,497 foreign visitors in 2024, more than double the prior year's domestic count, built almost entirely around Havelock's Radhanagar Beach, Neil Island and the Cellular Jail; and national defence, since Port Blair hosts the Andaman & Nicobar Command, India's only tri-service military command, overlooking shipping lanes near the Malacca Strait that carry an estimated $3.5 trillion in global trade a year. The territory's own GSDP is small, about ₹12,499 crore in 2023-24, but per capita income of roughly ₹3.10 lakh runs ahead of many mainland states, propped up by government and defence salaries rather than private industry. All of that sits hundreds of kilometres from the mainland, so this page's live weather, AQI and fuel numbers carry outsized weight for very different readers: a Havelock dive operator checking sea conditions before a boat trip, a Port Blair hotel manager watching a cyclone advisory before a long weekend's bookings, a Car Nicobar resident tracking a rain warning with no bridge or mainland road to fall back on if a ferry gets cancelled.

First Landfall, Constant Tremors: Andaman & Nicobar's Two Real Risks

Sitting in the middle of the Bay of Bengal, the islands are usually the first Indian territory any Bay of Bengal cyclone brushes past, often days before a system reaches the mainland coast. Cyclone Asani formed in the Andaman Sea on May 7, 2022, and brought heavy rain and strong wind across North and Middle Andaman and Port Blair; the administration evacuated coastal residents, deployed around 150 NDRF personnel across six relief camps in Port Blair, Diglipur, Rangat and Hutbay, and cancelled inter-island ferries and shipping to Chennai and Visakhapatnam, days before Asani weakened off the Andhra coast without making a full landfall. Cyclone Mocha followed the same pattern in May 2023, intensifying in the Andaman Sea with fishermen barred from the water until May 13 and heavy rain warnings running through May 12, before the storm curved away to hit Myanmar's Rakhine State on May 14. The seabed itself adds a second, constant risk: the islands sit in seismic zone V, the same fault system behind the 2004 Indian Ocean earthquake and tsunami that killed thousands here, and the tremors haven't stopped, a swarm of 114 earthquakes between magnitude 3.4 and 4.9 shook the Andaman Sea near the Nicobar Islands between June 24 and July 4, 2025, prompting outside experts to reassess regional tsunami risk even though no tsunami followed.

How to Use Andaman & Nicobar's Data for Daily Decisions

Dive shops and boat operators around Havelock, Neil Island and the Mahatma Gandhi Marine National Park should check this page's wind and sea-state numbers before every trip, not just during an official cyclone watch, since squally weather advisories with gusts to 55 kmph are issued several times a season with little notice. Hotel operators and tour agents booking the October-to-May peak tourist season should watch the IMD cyclone tracker in the shoulder months, April to June and October to December, when most Bay of Bengal systems form near or pass close to the islands. Residents of outlying islands like Car Nicobar, Little Andaman and Diglipur, where a cancelled ferry can mean days of isolation, should treat a port warning as a signal to stock up rather than wait it out. Anyone feeling a tremor should check this page's seismic and tsunami advisory status immediately given the region's zone V rating, and flight passengers through Veer Savarkar International Airport in Port Blair should build in a buffer day during cyclone season, since Asani and Mocha both disrupted inter-island transport for the better part of a week.

Andaman & Nicobar's Seasonal Calendar

The southwest monsoon reaches Andaman & Nicobar earlier than anywhere else in India, normally by May 20 with the islands often the first part of the country to see onset each year; in 2026 it arrived even earlier, May 16, six days ahead of the IMD's own forecast. Monsoon rain continues through September, and the islands see a second wet spell from the retreating northeast monsoon in October-December, giving the territory one of the longest rainy stretches in the country. Two cyclone windows bracket the year, April to June and October to December, matching the same months Asani and Mocha both formed. The dry season, roughly November through April, is also peak tourist season, with the calmest seas and clearest diving visibility around Havelock and the Mahatma Gandhi Marine National Park. Earthquakes carry no season and can strike any month, which is why the territory's tsunami-warning sirens and evacuation drills, rebuilt after 2004, run year-round rather than on a calendar.

Andaman & Nicobar vs Bay of Bengal States: Weather & Data Comparison

Andaman & Nicobar has no land-bordering states; Odisha, West Bengal and Tamil Nadu are included as the nearest mainland states with comparable Bay of Bengal cyclone exposure, not as geographic neighbours. Their figures are reused from this site's own already-published pages for internal consistency.