Best time to visit west Nepal: Rara, Khaptad and the Karnali roads by month

West Nepal has no single best month, because the answer depends on whether the plan is a flight to Talcha, a bus up the Karnali Highway or a trek to Khaptad. Sources give different month ranges for the same lake, so this page sets them side by side, picks the Nepal Tourism Board’s figure as the baseline and explains where the rest differ. The road side of the question is in monsoon road closures, and the other planning pages are in the getting there hub.

The seasons

Nepal has five seasons: spring, summer, monsoon, autumn and winter². Nepal Vision Treks puts spring at March to May, the monsoon at June to August, autumn at September to November and winter at December to February⁴. The Nepal Tourism Board says that as in most trekking areas of Nepal, the best time to visit is spring and autumn². Spring is when the rhododendrons bloom, and the clearest skies come after the monsoon in October and November².

Altitude matters in the far west. Average temperatures in Nepal drop 6 degrees C for every 1,000 m gained², and in mountainous regions winter temperatures can fall below zero². Rara National Park ranges from 2,800 to 4,039 m, with the lake at 2,990 m⁷.

Rara: what each source says

The sources give these windows for Rara. The Nepal Tourism Board is the government source and is the one used as the baseline here; newer pages are listed above older ones.

October is the one month inside all five ranges^1,4,5,6,8. The Nepal Tourism Board also says there is no seasonal constraint on travelling in and through Nepal, and that December and January, when winter is at its severest, bring bright sun and brilliant views².

Monsoon: June to September

Eighty percent of all the rain in Nepal falls during the monsoon, June to September². Bardia Homestay says the monsoon makes the trek to Khaptad and Rara difficult⁶, and the climate note for Rara National Park gives June to August as monsoon season, making the trek difficult⁷.

The roads show it. In a report of 17 August 2025 landslides blocked the Karnali Highway at Gaganekhola and Bihani in Kalikot, at Khidki Jyula in Dailekh and near Nagma on the road to Mugu⁹. In July 2026 the highway was completely blocked from 7 pm on a Saturday after a landslide at Gagane Khola, during the peak season for transporting apples from Jumla, Mugu and Humla¹⁰. The full record is in monsoon road closures.

Winter: December to March

At Rara Lake the temperatures from December to March are below freezing, and heavy snowfall blocks the way to the lake³. Bardia Homestay says that from December to February both national parks are covered with snow and the trails are not accessible⁶. Nepal Vision Treks adds that the climb can be harder in winter because of the temperature⁴.

Winter has its own pull. The Nepal Tourism Board’s park page says 214 species of birds are seen at Rara in winter¹. The Kathmandu Post reported in February 2018 that Rara’s winter visitors depend on snow, and that without snowfall that winter the lake did not attract them⁸. The Nepal Tourism Board notes winter rains are more pronounced in the western hills².

Khaptad

Khaptad National Park was established in 1984, covers 225 km2 across Bajhang, Bajura, Achham and Doti, and ranges in elevation from 1,400 to 3,300 m¹¹. The only seasonal guidance in the sources is Bardia Homestay’s: mid-September to December and March to May are the best time to visit Khaptad and Rara⁶. The same page puts Shuklaphanta National Park at September to mid-December and February to the end of May⁶.

Getting there in season

The Nepal Tourism Board’s access line for Rara is a flight from Nepalgunj to Talcha Airport, 35 minutes, then a 2-hour trek to the lake, or a 2.5-day trek via Jumla¹. Timings for the road legs are in buses and jeeps and Kathmandu to the far west by road.