August 21 Weather Updates: Delhi Heat Index, Monsoon Outlook & Tips

It’s August 21 and Delhi’s heat index is screaming close to 45 °C even though the thermometer reads around 32‑33 °C. High humidity and strong sunlight are pushing the feels‑like temperature up, making a regular summer day feel like a furnace. The India Meteorological Department (IMD) warned that this muggy spell will stick around for a few more days before the monsoon finally eases the heat.

What the numbers mean

The heat index combines temperature and humidity to show how hot it truly feels on your skin. When the index hits 45 °C, you’ll start to sweat heavily, feel short of breath, and become prone to dehydration. IMD’s latest bulletin says the humidity is hovering around 80 % in the city, which is why the feels‑like temperature is so high. Expect the index to stay above 40 °C until the first light showers roll in later this week.

Monsoon chances and practical advice

IMD predicts light to moderate rain any time in the next week, thanks to a revived monsoon system moving in from the Bay of Bengal. Those showers will bring relief, but they’ll also make humidity stick around. Here’s what you can do to cope right now: stay hydrated – aim for at least 2‑3 liters of water a day, wear loose cotton clothing, and avoid outdoor activities between 11 am and 4 pm. If you must be outside, a wide‑brimmed hat and sunscreen with SPF 30+ are must‑haves.

When the rain finally arrives, keep an eye on water‑logging in low‑lying areas, especially near Delhi’s major roads. Traffic can get snarled, so plan extra travel time or use public transport where possible. Carry a compact umbrella or a raincoat; a dry pair of shoes can save you from sore feet after a long walk.

For those working from home, keep your indoor space cool by using fans, closing blinds during peak sunlight, and ventilating early morning or late evening when the air is cooler. If you have an air‑conditioner, set it to a comfortable 24‑26 °C – going lower just wastes power and won’t make you feel much better.

Health‑wise, watch out for heat‑related illnesses like heat exhaustion or heatstroke. Symptoms include dizziness, headache, nausea, and rapid heartbeat. If anyone shows these signs, move them to a cooler spot, give water, and seek medical help if they don’t improve quickly.

Looking ahead, the monsoon will likely bring more consistent rain to Delhi by early September, easing the heat index dramatically. Until then, stay smart, stay hydrated, and keep an eye on IMD updates for any sudden changes in forecast.