June is typically the starting month of the monsoon season in Jaipur which lasts through July, August and September. Generally, Jaipur is a dry city and therefore receives very low rainfall. The rainy period features frequent heavy rains and thunderstorms, though flooding is rare. Obviously, it is not the best of months to visit the city; but looking positively, it won't be as hot as the peak summer months.
The average low (L) and high (H) temperatures for the rainy months are:
June - 39 C (H), 27 C (L)
July - 33 C (H), 26 C (L)
Aug - 32 C (H), 25 C (L)
Sept - 33 C (H), 24 C (L)
July and August receive the heaviest rainfall.
This year, the peak hot season came earlier than usual - while May is supposed to be the hottest month, this year it was in April that temperatures crossed the 45 degree celcius mark, and May was not as hot as it used to be. The later part of May got a relief from heat wave conditions due to the slight drizzles of isolated rain brought on by dust storms, thunderstorms and squalls. Though the average temperature dropped by few degrees, there was a rise in humidity and moisture levels, thus making conditions just as worst.