Patna: Bihar is set to experience an intense and potentially prolonged heatwave from March to May, with temperatures forecast to remain above normal and likely to cross 40C soon after Holi, according to the India Meteorological Department (IMD).
Officials said relatively balanced weather conditions would prevail until March 6, but temperatures are expected to rise from March 7 onwards. Maximum temperatures could reach 34C to 35C in the coming days, while minimum temperatures are likely to range between 16C and 18C.
On February 28, Dehri recorded 33.6C, the highest temperature of the month, indicating an early onset of summer-like conditions. While the probability of a heatwave in the first week of March remains low, rainfall is expected to be negligible.
Meteorologists have attributed the anticipated rise in temperatures to a weakening La Niña phenomenon in the Pacific Ocean, which could contribute to harsher summer conditions across eastern and east-central India, including Bihar. The IMD has projected more heatwave days than usual in this region.
Experts say that in urban areas, the “heat island effect” — caused by concrete buildings and asphalt roads absorbing and retaining heat — may prevent temperatures from dropping significantly at night, intensifying discomfort around the clock.
With strengthening westerly winds and declining humidity levels, hot and dry weather is likely to dominate most parts of the state. The IMD has warned that temperatures may not only rise sharply but could remain elevated for extended periods, particularly during April and May.
Health experts have urged residents to take precautions. They advised drinking water regularly, even in the absence of thirst, avoiding outdoor exposure between 12pm and 3pm, and carrying protective gear such as umbrellas or cloth coverings when stepping out. Including yoghurt, buttermilk and seasonal fruits in the diet can help prevent dehydration, they said.
Special care is being recommended for children and elderly people, as prolonged exposure to extreme heat can increase the risk of heat-related illnesses. Authorities have cautioned that this year’s summer may begin earlier and last longer than usual.
