Every Nepal travel guide says October is the best month to visit. And October is genuinely excellent. But if everyone is going in October, October is also the most crowded, most expensive, and most booked-out month to visit. The truth about when to go to Nepal is more nuanced than any single recommendation, and it depends entirely on what you want to do when you get there.
Here is what each month actually looks like on the ground.
January
Cold. Kathmandu nights can drop to 3 or 4 degrees Celsius. Pokhara is milder but still chilly in the mornings. High altitude trekking is possible but demanding, with snow on passes above 4,000 metres making some routes difficult or closed. The Everest Base Camp trail is walkable in January for experienced trekkers prepared for cold, but it is genuinely cold at Gorak Shep and above.
The advantages: very few tourists, significantly cheaper accommodation, and some of the year’s clearest mountain views because the air is cold and dry. Wildlife viewing in Chitwan is excellent in January as animals cluster near water sources in the dry season. If you want Nepal without the crowds and do not mind cold mornings, January is underrated.
February
Similar to January but temperatures begin rising. The rhododendrons start to bud at lower altitudes toward the end of the month. Trekking conditions are improving. Still relatively uncrowded. A good month for people who want clear skies and comfortable trails without peak-season prices.
March
One of the genuinely great months to visit. The rhododendrons bloom across the hill regions, turning the forests red and pink from roughly 1,800 to 3,500 metres. The Everest and Annapurna regions are particularly beautiful in rhododendron season. Temperatures are warming, trails are drying out, and the crowds have not yet arrived. March is the beginning of spring trekking season and is significantly less busy than October while offering comparable trail conditions.
April
Warm and clear in the valleys. Daytime temperatures in Kathmandu reach the high 20s and low 30s Celsius. Mountain meadows are in full bloom. High passes become accessible again as winter snowpack melts. April is when Everest summit season begins and the trails to Base Camp fill with both climbers and trekkers. It is one of the busiest months of the year. Pre-monsoon haze can start to reduce mountain visibility from the valley towns toward the end of April, though the peaks themselves remain visible from altitude.
May
Hot in the lowlands and valley floors. Kathmandu can reach 35 degrees Celsius and the air quality in the city deteriorates in the pre-monsoon period. Up in the mountains it is still trekking weather, and May sees the Everest summit windows. The second half of May brings increasing instability as the monsoon approaches. Not the ideal month overall but manageable for those heading straight to altitude from the airport.
June
The monsoon arrives, usually in early to mid-June. What this means practically: heavy rain falls most afternoons and evenings, often all night. Trails below 3,000 metres become muddy and slippery. Mountain views from valley towns disappear into cloud for days or weeks at a time. Landslides affect roads and some trekking trails. The Kathmandu to Pokhara highway has annual landslide closures during monsoon season.
There are reasons to come in June. The landscapes turn extraordinarily green. The rice paddies fill and the hillsides look completely different from the dry months. Prices drop significantly. The crowds disappear entirely. Rain-shadow trekking areas like Upper Mustang and the Manang Valley remain relatively dry because the Himalayas block the monsoon from the north side. If you specifically want Upper Mustang, June through August is actually a reasonable time to go.
July and August
Peak monsoon. The heaviest rainfall of the year. Most of the classic trekking routes are walkable with the right attitude and gear, but you should expect wet trails, leeches below 2,500 metres, limited mountain views, and some logistical complications. Domestic flights cancel frequently when visibility drops. The landscapes are beautiful in a completely different way from the dry seasons, but it requires flexibility and acceptance of the conditions.
The practical upside: accommodation is half the price of peak season, you will often have guesthouses to yourself, and the local festivals and cultural life of Nepal continue regardless of what the sky is doing.
September
The monsoon begins to wind down in the second half of September. This is a transitional month. Early September is still very wet. Late September starts to clear. The trails are saturated and muddy from months of rain but the vegetation is at its lushest. By the last week of September the weather usually improves noticeably and trekkers begin appearing on the trails again. September is the buffer zone between monsoon chaos and autumn clarity.
October
The peak month. Post-monsoon skies are crystal clear, the vegetation is still green from the rains, temperatures are comfortable at most altitudes, and the mountains are as visible as they ever get. October is excellent. It is also the most expensive month by a significant margin, the most booked-out for good trekking lodges, and the busiest on the popular trails. Teahouses on the Everest Base Camp route in mid-October are genuinely crowded. If you want the classic autumn experience and are comfortable paying peak prices and sharing trails with other trekkers, October is everything it is claimed to be. Just book accommodation in advance.
November
Nearly as good as October with fewer people. The views remain clear, temperatures are dropping but manageable on the main trails, and the crowds thin noticeably from mid-November onward. Higher passes start getting snow by late November which closes some of the more technical routes. The Thorong La on the Annapurna Circuit can become difficult by late November in a heavy snow year. November is often cited by experienced trekkers as the better month of the two peak months, precisely because it has most of October’s benefits with less of the crowd.
December
The first winter month. Cold at altitude. Kathmandu and Pokhara are chilly in the evenings but pleasant during the day. Mountain views from the valley towns can be exceptional in December, one of the best months for clear horizon shots of the Himalayan range from Nagarkot or Sarangkot. The trekking season winds down at high altitude but lower altitude routes remain accessible. Prices begin dropping from November highs.
The Honest Summary
For trekking: October, November, March, and April. October has the clearest skies but the most crowded trails. If avoiding crowds matters more to you than perfect views, flip the order and start with April.
For wildlife in Chitwan: October through March.
For budget travel with no crowds: January, February, June, July, August. In that order of ease.
For culture and festivals: Dashain and Tihar fall in October, which overlaps with peak trekking season. Holi is in March. Buddha Jayanti in April or May. Local festival calendars vary by region and the Nepal Tourism Board website publishes the annual festival calendar.
The most underrated month is March. Go in March, book less in advance, pay less, and walk through rhododendron forests with a fraction of the October crowds.