The Valley of Flowers remains open to visitors from June 1st to October 31st. The best time to visit this valley is in July, August and September.
The valley of the flowers has a distinct microclimate in the Himalayan inner valley of the Nanda Devi Basin. The region receives dry annual rainfall with low annual rainfall and heavy monsoon rains from late June to early September.
As the soil holds moisture during the monsoon season, the vegetation remains lush as usual, in the dry valleys of the Himalayas.
The temperature remains moderate to cold (maximum 19 ° C) from mid-April to June. The valley of flowers has the microclimate of an inner Himalayan valley circumscribed and remains protected from the jolt of the summer monsoon by the great Himalayan range to the south.
The late summer monsoon brings a thick fog and rain into the valley. The basin and valley are covered with snow for six to seven months between late October and late March