Delhi Wakes Up to Brutal Summer Heat

Delhi is just starting off one of the hottest days of the season and the next few days may be equally challenging. The capital had its hottest day of the year on Monday, the generally hot and dry day with the temperature at the apex Safdarjung weather station touching 43.4°C. This caused it to be the hottest day so far this season. Delhi grabbed a yellow alert from the India Meteorological Department (IMD) for isolated heat wave conditions owing to the forecast of continued hot weather. The weather prediction indicates that the maximum temperature could be contained in the range of 43°C to 45°C on Tuesday and Wednesday and 42°C to 44°C on Thursday and Friday. This may indicate that the people of Delhi may have to endure these hot days with wind blowing and sweltering afternoons and nights. It's not only weather news for those who commute to work, students, street vendors, delivery workers and those who work on a daily wage basis. It directly impacts routine, health and safety.

Safdarjung recorded temperature 

The temperature in Safdarjung was 43.4°C, which was about 3°C above normal. But in some parts of Delhi, it was even hotter! The heat at the Ridge station was 44.6°C (which was 3.1°C above normal) and one of the hottest in the city on Monday. The average high temperature for the first five days of May in Delhi is about 40.4°C. It is evidently a very warm spell as compared to the normal range of 40.2°C for May 21 to 25 and of 40.4°C for May 26 to 30. The minimum temperature in the city was also not pleasant, 26.3°C, and it could be as high as about 29°C on Tuesday before going down to 26°C to 28°C for the remainder of the week. So, nights may not be much relief either.

Why Delhi Is Getting So Hot

The recent temperature increase is associated with dry conditions and the lack of storms in the area. As the reason for the heat is that no western disturbance is active or cyclonic circulation is there," Mahesh Palawat, vice president of Skymet Weather, stated. He also referenced western and northwesterly dry and hot winds. This is why the city seems so vulnerable these days. As long as there isn't rain, cloudiness or strong weather disturbance, heat continues to stack up during the day. Outdoor movement is worse still with hot surface winds, particularly during afternoon hours. Major relief is not in immediate sight as per the IMD Delhi weather forecast. Mostly clear skies are forecast, with maximum temperatures possibly still being as high as 42°C/44°C over the weekend.

NCR is Feeling the Heat Too

Delhi is not the only place experiencing heat. There are also severe conditions in the broader National Capital Region (NCR). The maximum temperature in Noida was 40.2°C, while the temperature is likely to stay in the range of 42°C to 44°C till at least May 24 there. The temperature in Ghaziabad was 42.2°C, and temperatures are expected to soar up to a maximum of 45°C by May 24. Gurugram was at 40.6°C and a yellow signal for a heatwave has been issued until Friday, during which the temperature is likely to range between 40°C and 42°C. This is significant as a considerable number of people commute every day between Delhi, Noida, Gurugram and Ghaziabad. Heat stress does not end at city limits. The situation of people commuting to and from offices, metro users, bike riders, construction workers, and street vendors in NCR is equally difficult.

The air quality also begins to deteriorate!

The heat isn't the only issue. The air quality has also begun to deteriorate gradually in Delhi. The city's 24-hour average AQI was within the “moderate” category at 4 pm Monday at 173 with the help of the Central Pollution Control Board. Earlier this week the average was around 131. The centre's early warning system for Delhi predicted that the AQI may stay at a “moderate” level on Tuesday but could fall into the “poor” category on Wednesday. The mix of high heat and deteriorating air is not necessarily comfortable. This can also cause an "extra heavy day" for individuals with asthma, breathing difficulties, or heart disease and for those who work outdoors.

El Niño's contribution to the heat is more severe?

El Niño is a climate pattern that is linked to abnormal warmth of the Pacific Ocean and can influence weather systems in various regions around the globe. It is considered an important phenomenon for India, as it can affect its heat, rainfall, and monsoon behaviour. But this heat in Delhi this time isn't just due to El Niño. The immediate causes still remain unidentified, like lack of cloud cover, hot west-northwest and west wind, absence of strong western disturbance, and dry weather. In the meantime, numerous climate agencies and weather specialists are observing closely the possibility of El Niño conditions in 2026. If it becomes stronger later it could exacerbate hot conditions and cause them to feel hotter or longer. Thus for Delhi, this 43.4°C heat is not solely due to El Niño but could be on the larger climate canvas that makes such extreme summer spells more difficult to ignore.

All People Must Be Aware Of

The greatest threat in a Delhi heatwave is to not recognize warning signs of heat stress. The following symptoms should never be overlooked. The biggest risk during a heat wave is for people not to realize that they are suffering from heat stress. Watch out for these symptoms:

* dizziness

* headache

* sweating a lot

* weakness

* nausea

* muscle cramps

* confusion

* tiredness

You can remember it like this:

* AVOID going when its hottest (between 12:00 pm and late afternoon)

* DRINK enough water

* AVOID direct sun

* AVOID too much work 

Child, elderly persons, pregnant women (and persons with existing health conditions) need extra care. If practical, workers should be given an opportunity for breaks during outdoor work time. Bikers should make an effort to avoid prolonged periods of direct sunlight and students and people in the office should have access to water, and avoid unnecessary walking during the hottest hours.  For now, the message is simple: plan the day around the heat, do not ignore symptoms, and treat this spell as more than just “normal summer.”

For The United Indian

Why This Matters

At The United Indian, we look beyond the temperature number. A 43.4°C day is not just weather data; it changes how people travel, work, sleep and stay safe.

The Bigger Picture

Delhi’s rising heat shows why cities need stronger heat planning, more shade, better water access and public awareness during extreme summer spells.

Stay With Us

Follow The United Indian for grounded updates on weather, cities, public health and the issues shaping everyday life in India.