Jaipur has three seasons that you can experience majorly. The summers are extreme and so are the winters.
Summer season: Summers in Rajasthan are hot and dry. Maximum temperature during the summers (from April to July) reaches a high of around 40 degree Celsius.
Monsoon or Rainy season: Monsoon months fall between June and September as during this time only little rainfall takes place. Throughout the year temperatures remain fairly high. The maximum rainfall is witnessed by Jaipur in July and August. It is advisable to carry an umbrella and clothing suitable for rains if you choose to travel during this time.
Winter season: In winter the days are sunny and pleasant while nights can be chilly. Some light warm clothing is required in the evenings and early in the morning.
The lowest temperature is in winters when it goes down to 8 degree Celsius. In summers, the nights are cold and the temperature falls to 21 degree Celsius. Even in winter sometimes the temperature can go upto 34 degree Celsius and in summers the maximum is 40-45 degree Celsius.The best time to visit Jaipur is from October to March as the summers have not completely arrived yet. The winters are quite enjoyable with the ambience of Jaipur.