Best time to travel to Spiti & Lahaul Valley
Spiti valley is accessible from Shimla’s side throughout the year however from Manali, it can only be accessed for 5 months, from June till September.
When to visit Spiti completely depends on what your preference is.
From June till September : The complete Spiti circuit remains open at this time. You can start your journey from Shimla and end at Manali or vice versa. While Spiti does not experience much rain, almost next to none for that matter, roads leading to the valley often get damaged or closed due to monsoon. Kunzum pass opens in late June and it takes some time for BRO and PWD to stabilize the road from Kokhsar till Kaza. The entire patch from Kokhsar to Kunzum, specially till Batal is a nightmare to drive on. Add monsoon to this and you will get the idea. Landslides often occur in this region and you may have to wait for a few hours for the road to reopen and turn back and return the next day. Road from Shimla’s side is however do not have that large of a risk of closing down, even though it is equally bad. But even after all this, you can still comfortably complete the journey and enjoy the valley.
From October till May : A trip to Spiti gets one sided during this time because Kunzum pass remains closed till June. You can start from Shimla, travel till Kaza and return taking the same road back. There isn’t much snow till December however it does get very cold. Caution is advised if you are traveling between January till March as this is the time when the entire valley is covered under a thick sheet of snow. You can hope to find whatever is left of the snow in the months of April and May but it is also the time when roads are in worst condition due to melting snow.
If a safe, uneventful trip, lush green hills and colors of Spiti is on your mind then July and August are the best months to travel to Spiti. If you are feeling adventurous and heavy snow is what you want to see, then March is the best month to go.