Nepal weather & climate

The all-powerful Indian monsoon is the defining feature of life and tourism in Nepal.

October to April is the dry season and, overall, this is the best time to trek in most of Nepal. But within that, the ideal trekking time is really from October to early November when the skies are crystal clear and the visibility excellent. It’s warm in the valleys and cool to cold up high. However, this is also the busiest time on the main trails, and villages can be overwhelmed with trekkers.

Avoid the monsoon season from May to September, when trekking routes close and paths become dangerous. If visiting Nepal during monsoon, stick to the major cities, which are often much quieter than during peak periods.

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Nepal trekking month-by-month

October to November is the most popular time to trek in Nepal, with the weather at its mildest and the temperatures manageable. However, routes can be busy during these months and trekking lodges full, so make sure you plan your stops in advance.

December to February is also an excellent time to trek, when trails are much quieter and visibility is still excellent. However, it can be bitterly cold up high, and some passes can be snowed in. Treks in the Annapurna circuit and to Everest base camp are still possible at this time.

March to early May can be another good time to trek. It’s much warmer up high, but uncomfortably hot lower down. Rhododendrons turn the slopes aflame with purples and reds. On the negative side, heat haze builds up and the air is less clear. The first pre-monsoon storm clouds build up and you’ll probably get soaked by intense thunderstorms.

May is a superb time to trek areas which lie in the Himalayan rain shadow. Trails in areas like Upper Mustang and Dolpo are quieter than in June to September, and the mountain views are better. By late May the thunderstorms become more frequent and it remains dangerously hot at lower levels.

In June the monsoon really starts to make its presence felt. In Nepal the torrential rain and massive thunderstorms last roughly from late-June to mid-September. For much of the country this is a very bad time to trek. Many trekking lodges will be closed, mountain views obscured, and trails become a quagmire of mud and leeches. However there are exceptions and places such as Upper Mustang which lie in the Himalayan rain shadow can still be trekked.

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Events and holidays

Trekking in Nepal isn’t just about the mountain views and awe-inspiring passes. Along the way, trekkers will also pass through many Nepalese villages and interact with local communities. This is an opportunity to partake in Nepalese festivals and events.

Lasting 15 days between September and October, Dashain is the biggest cultural festival in Nepal. Celebrated by Hindus and Buddhists alike, this festival sees music, dancing, kite-flying and colourful processions of Hindu and Nepalese gods. A word of warning - animal sacrifice to appease the gods is a part of the festival.

October and November sees the Mani Rimdu festival, a 19-day event that culminates in a three-day public holiday. This is a great time to be trekking around Tengboche or to Everest base camp, as you’ll witness celebrations as local Sherpa and Tibetan communities join forces with Buddhist monks. You’ll witness folkloric dancing and singing, religious ceremonies and, if you’re lucky, the renowned mask dance at Tengboche monastery.

The pre-monsoon months of February and March sees Nepal welcome the Hindu Holi festival, a colourful celebration welcoming spring and the defeat of the Hindu demoness Holika. Join devotees in throwing coloured powder and water - but make sure to not wear your best clothes.

Explore Nepal

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