Rajasthan has a warm desert climate, very hot and dry in summers and very cold in winters. Rains during the monsoon season are sparse, but it livens up the land that was parched by the summer. The monsoon and post- monsoon periods see a vibrant burst of colours.

Sariska Tiger Reserve, this lively reserve of India's largest pool of tigers sees a burst of greenery in monsoon with a multitude of birds that migrate to Sariska. The Reserve is open throughout the year, for the pilgrims who visit the Pandupol Hanuman Temple on Tuesdays and Saturdays. The area does get crowded on these days of the week. But the park in particular is closed for safaris during Monsoon i.e from July to September, as this is the breeding time for tigers and the forest tracks are rather unsafe for driving. The best time to visit Sariska Tiger Reserve on a sightseeing tour is from October through June, when the weather is perfect and the park is thrown open for safaris.

From December to March, the cold Western winds blow across Rajasthan. The cold wave attracts droves of migrating birds. Temperature varies from 8-21°C. This is when you get to see a variety of avifauna, about 225 species of birds including peafowl, Treepies, Babblers, Bulbuls, Quails, Partridges, Golden Backed Woodpeckers and Great Horned Owls. For the avid bird-watcher, the most ideal time would be the winter safari. Weather turns cold as December turns into January which is the coldest month of the year. Carry woollens for overnight stays as the nights get nippy.

Summer in Rajasthan can be very hot and dry, sometimes even dehydrating. Summer here lasts from April to June and the heat in the desert state soars from 22 to 43°C, sometimes going up to 49°C. Days are hot and the nights cold. If you can bear the heat, you can still enjoy the sight of the wild animals as they come to the watering holes. Tourists can carry light cotton clothes and plenty of water to beat the warm summer.

During the monsoon season from July to September, though the region does not receive abundant rain, the forest turns green and verdant. Monsoon is rather erratic and there are times when rainfall is scanty. But even with the limited amount of rain that falls on the region, it turns the area a picturesque one. Temperature shifts to a cooler range of 25°C -38°C.

Months from October to November are Post Monsoon periods when the temperature varies from 33°C-38°C. Days get warm and the nights are cooler.