Delhi experiences three seasons: summer (March-June), monsoon (July to mid-September) and winter (November-February). April-August is peak summertime, and temperatures hover near 110 F/40 C and can get even higher. Temperatures can go down to 40 F/4 C in January. Winters are normally pleasant, making it the best time of the year to visit the city.
It never rains incessantly in Delhi like the way it does in Mumbai. Even hard showers rarely last for over an hour.