Karnataka Weather, AQI and Fuel Prices

Why Check Karnataka Weather & Data?

Karnataka is India's fourth-largest state economy, with a GSDP estimated at ₹28.83 lakh crore for 2024-25 and roughly 8.9 percent of national GDP, up from 8.3 percent just two years earlier. Bengaluru alone generates close to 39 percent of that output, a single city of roughly 14 million people carrying nearly two-fifths of the state's entire economy, home to software and services exports that crossed ₹5 lakh crore in 2024-25, up 22 percent from ₹4.11 lakh crore the year before. But Karnataka isn't only Bengaluru: Kodagu, Chikkamagaluru and Hassan together grow roughly 70 percent of India's coffee, and the state's coastal belt around Mangaluru and Udupi sits directly in the path of the southwest monsoon and Bay of Bengal cyclonic activity each year. This page's live weather, AQI and fuel numbers serve very different people depending on who's reading: a software engineer deciding whether to risk an Outer Ring Road commute during a downpour, a Kodagu coffee planter watching the flowering-season rain forecast, a Mangaluru fisherman checking wind warnings before heading out to sea, a North Karnataka farmer tracking whether this year's monsoon onset will finally break a run of drought-hit seasons.

Bengaluru's Floods, the Coast's Cyclones: Karnataka's Two Real Risks

Bengaluru's stormwater drains and construction on dried-up lakebeds mean the city floods on rain that better-drained cities absorb. The September 2022 deluge, among the city's heaviest rainfall events on record with the season running 141 percent above average, submerged tech corridors and forced Wipro, Goldman Sachs, Morgan Stanley and Flipkart to send staff home for days, with several neighbourhoods left without drinking water. Rain kills too, not just disrupts: pre-monsoon downpours on May 19, 2025 killed at least three people in the city, a 63-year-old man and a 12-year-old boy electrocuted while pumping water out of a flooded apartment basement, and a housekeeper crushed when a compound wall collapsed in Whitefield. The coast carries a different but equally real risk. Cyclonic activity in the Bay of Bengal triggered flash floods across northern Karnataka overnight on October 5, 2024, killing three people, injuring two and damaging 150 houses, while washing away roughly 9,000 hectares of paddy, banana and chilli crops. The coffee belt sits in the same weather system: unseasonal, heavy rain scattered ripening berries across plantations in Chikkamagaluru, Kodagu and Hassan in mid-2024, a crop that carries no weather-based insurance at all, arriving just a year after the state's costliest drought in years wiped out ₹33,770 crore in crops across 195 drought-hit taluks.

How to Use Karnataka's Data for Daily Decisions

IT and services workers in Bengaluru should check the rain forecast before committing to an Outer Ring Road commute during June to September, since a single afternoon downpour has repeatedly turned a 40-minute drive into three hours. Coffee growers in Kodagu, Chikkamagaluru and Hassan should track rainfall closely through the March-April flowering window and again during the November-January picking season, since either an early dry spell or a late heavy burst can cost a season's yield with no insurance to fall back on. Fishermen along the Mangaluru-Udupi coast should check wind speed and cyclone advisories before any Bay of Bengal trip through the October-December cyclone season, not rely on the tide chart alone. Farmers in the drought-prone Kalaburagi-Raichur-Bidar belt should watch the confirmed monsoon onset rather than the calendar date, given how many recent years have brought deficient rainfall across the region. Travellers heading to Coorg or the coast in July and August should check landslide advisories on the Western Ghats ghat roads alongside the rainfall total, not the rainfall total by itself.

Karnataka's Seasonal Calendar

Monsoon typically reaches the Karnataka coast around Mangaluru within two to five days of the Kerala onset, historically close to June 1-5, and covers the whole state by mid-June, holding through September. Rainfall is wildly uneven across that season: coastal Dakshina Kannada and Udupi average well over 3,400mm a year against roughly 1,150mm for the state as a whole. North Karnataka's heat season runs March to May, when Kalaburagi, Raichur, Yadgir and Bidar regularly cross 44-45°C, some of the hottest readings recorded anywhere in the country that week. Bengaluru's winter, November to January, stays mild and is the state's most reliable travel season. Mysuru Dasara in September-October, Karnataka's largest public festival, regularly overlaps with the retreating northeast monsoon that keeps bringing rain to the state's southern and coastal districts into November. Anyone booking a flight through Bengaluru or a ghat-road drive to the coast in July or August should check the morning forecast, since Western Ghats downpours can shut roads or delay flights with little advance warning.

Karnataka vs Nearby States: Weather & Data Comparison

Figures from state government drought/GSDP data, IMD climate records and dated news reports; each state's rainfall/temperature numbers come from different station sources and years, so treat this as a broad reference, not a single-source dataset.