Delhi recorded a temperature of 35.7°C during the first week of March, marking the highest temperature for this period in nearly 50 years, according to data released by the India Meteorological Department.
The unusually high reading has intensified concerns about the arrival of an early summer in northern India, with meteorologists warning that the region could face prolonged heat conditions in the coming months if current weather patterns persist.
The temperature was recorded at the Safdarjung Observatory, the city’s primary weather monitoring station and the official reference point for Delhi’s climate data.
Early heatwave signals unusual seasonal shift
Meteorologists note that temperatures above 35°C in early March are highly unusual for the national capital, where typical daytime temperatures during the first week of the month usually remain in the late 20s to early 30s Celsius range.
The spike suggests a significant departure from long-term seasonal averages and indicates that the transition from winter to summer is occurring more rapidly this year.
Weather experts attribute the sudden rise partly to clear skies, strong solar radiation, and dry northwesterly winds, which have accelerated heating across the northern plains.
Such conditions often lead to rapid daytime temperature increases, particularly when cloud cover is minimal and atmospheric moisture levels remain low.
Rising temperatures across northern India
The heat was not limited to Delhi alone. Several regions across northern India have reported above-normal temperatures in recent days, reflecting a broader warming trend across the Indo-Gangetic plains.
Climatologists say such early spikes can sometimes precede extended heatwaves later in the summer, particularly if large-scale atmospheric circulation patterns continue to favour dry and stable conditions.
India has witnessed increasingly intense heatwaves in recent years, with several states recording record-breaking temperatures during summer months.
Scientists studying climate patterns have repeatedly warned that rising global temperatures are increasing both the frequency and intensity of extreme heat events across South Asia.
Implications for the coming summer
Early heat spikes often have cascading impacts on water demand, agriculture, and public health.
Higher temperatures in March can accelerate soil moisture loss and affect crops that are still in critical growth phases.
Urban areas like Delhi may also experience greater heat stress due to the urban heat island effect, where concrete infrastructure and dense construction trap heat and raise local temperatures.
Authorities typically begin heat preparedness measures once sustained temperature increases are observed, including public advisories about hydration and limiting outdoor exposure during peak afternoon hours.
Climate change and extreme weather patterns
Experts say the increasing frequency of extreme temperature events reflects broader climate shifts affecting the Indian subcontinent.
India has experienced multiple years of intense summer heatwaves in the past decade, with temperatures in some regions crossing 45–48°C during peak summer months.
Climate scientists caution that such trends are consistent with global warming projections that predict more frequent and severe heat events across tropical and subtropical regions.
The early March temperature record in Delhi therefore serves as a reminder of how quickly seasonal norms can shift under changing climate conditions.
For residents of the national capital, the unusually hot start to March may be an early signal of a potentially longer and more intense summer season ahead.
