Delhi-NCR weather: IMD forecasts week of rain, thunderstorms; mercury below 40°C
Synopsis
Key Takeaways
The India Meteorological Department (IMD) has forecast a week of thunderstorms and rainfall across Delhi-NCR, with maximum temperatures expected to stay below 40 degrees Celsius until 5 June. The outlook offers continued respite to residents after several days of unusually mild summer weather in the national capital.
Current temperature readings
On Tuesday, Delhi logged a maximum of 37.7 degrees Celsius at Safdarjung — 2.3 degrees below the seasonal normal — while the minimum settled at 26.8 degrees Celsius. Across monitoring stations, the mercury stayed well under par: Ayanagar at 36.1°C, Lodhi Road at 36°C, Palam at 35.9°C, and The Ridge at 37.2°C — between 2.5 and 5 degrees below normal for the season, according to IMD data.
Why the cooler spell
The dip is attributed to active western disturbances and pre-monsoon convective activity sweeping the region, which have triggered intermittent showers and gusty winds. The pattern marks a sharp contrast to the searing heatwaves that gripped north India in the previous fortnight.
El Nino looms over global outlook
Even as Delhi cools, the World Meteorological Organisation (WMO) on Tuesday flagged that El Nino conditions are developing in the tropical Pacific, fuelled by unusually warm ocean waters, and are likely to reshape global temperature and rainfall patterns in the coming months.
“We need to prepare for a potentially strong El Nino event, which will exacerbate drought and heavy rainfall and increase the risk of heatwaves both on land and in the ocean,” WMO Secretary-General Celeste Saulo said at a press conference in Geneva.
Saulo noted that the most recent El Nino, in 2023-2024, ranked among the five strongest on record and contributed to the historic global temperatures logged in 2024. She added that advance seasonal forecasts and early warnings remain vital to cushion the impact on lives, agriculture and climate-sensitive sectors.
What's next for Delhi
The IMD has advised residents to expect intermittent thundershowers through the week, with localised waterlogging and traffic disruption possible during peak spells. Forecasters will be watching whether the developing El Nino pattern alters the trajectory of the southwest monsoon, due to advance over northwest India later this month.