The climate of Rajasthan can be divided into four seasons: Pre-Monsoons, Monsoon, Post-Monsoon and Winter.

Pre-monsoon, which extends from mid-march to June, is the hottest season, with temperatures ranging from 32oC to 45oC. In western Rajasthan the temp may rise to 48C, particularly in May and June. At this time, Rajasthan only hill station, Mount Abu registers the lowest temperatures. In the desert regions, the temperatures fall in night.

The season Monsoon extends from July to September, temp drops but humidity increases making it very un comfortable, even when there is slight drop in the temp (30oC to 40oC).

The Post-monsoon period is Oct & November. The average maximum temperature is 33oC to 38oC, and the minimum is between 18oC and 20oC.

The fourth season is the winter, from December to mid-March. There is a marked variation in maximum and minimum temperatures, and regional variations across the state. January is the coolest month of the year. And temp may drop to 0oC in some cities of Rajasthan, like Churu. There is slight precipitation in the north and north-eastern region of the state, and light winds, predominantly from the north and north-east.

Temp

January to March
5oC - 25oC

April to June
35oC - 45oC


July to September
30oC - 40oC

October to December
20oC - 30oC

These are average temp and rainfall of Rajasthan, and may vary for each city.