Nepal climate

The seasons in Nepal are pretty much the same as in Europe. In January it's cold, while in July you could make do with shorts and t-shirt. But Nepal remains a country of extremes, and, if you're planning to head into the mountains, you definitely need to be aware of the Nepal trekking season. The Nepal climate is moderate, which means the winters are dry and the summers are hot. But because of the huge range in altitude and landscape, Nepal climate differs considerably throughout the country.

Nepal climate - The Lower Plains
The Nepal climate in the lower plains is (sub)tropical. Summers are hot and humid and temperatures can soar to 40°C. It's the same heat that covers Northern India at this time of year and the months before the monsoon hits can be particularly hot and sticky (May and early June). Winters in the lower plains are mild and dry with temperatures averaging between 10°C - 17°C.

Nepal climate - Himalayan foothills
The mountains and valleys in the Himalayan foothills have a moderate climate with warm summers and cool winters. As it lies at a relatively southern latitude, the Nepal climate is even pleasant at altitude, and the tree line is quite high. Average temperatures vary from 10°C in January to 24°C in July. In winter, the Nepal climate is (as you might imagine), pretty chilly. Temperatures drop and nights can be very cold, although they rarely sink to below freezing. In Kathmandu, from April - September, temperatures can climb to 28°C with nights averaging around 20°C.

Nepal climate - Himalayan Mountain Range
The high mountains of the Himalayas which run along the northern border, above 4000m, have an alpine Nepal climate. Temperatures remain below 0°C and the landscape is covered with snow and ice.

Nepal climate: Monsoon season
The South-West monsoon lasts from June to September, and this is definitely not the best Nepal trekking season. During this time, the monsoon rains gradually advance east to west (whereas the most western part and the north of Nepal remain dry). The densely populated lowlands receive a lot of rain (up to 2000mm-3000mm), and over the rainy season, many roads are blocked by landslides and trails become slippery tracks. Leeches can be an irritation at Chitwan in the wet season and if trekking from Pokhara.

Our advice about the Nepal trekking season
The best time to travel to Nepal is October - February, and secondly from March through to May. These periods will give you the best of the Nepal trekking season. As this is officially the dry season, there are no huge downpours (usually - that is) and there's a better chance of clear skies. If you travel from October to May, you can enjoy both the tropical lowlands and the breathtaking mountain vistas at their best. The best region to trek in the wet season is Kathmandu Valley. Visibility is often best from October - February during the cooler months and then it can get dustier and hazier as the hot season approaches hence reduced visibility.

Changing global weather patterns have had their effect on the Himalayan climate and mountain weather is notoriously changeable. Always be prepared for a change in conditions and note that if severe or dangerous weather conditions occur your guide’s decision on any course of action is final.

Winter (December-February) It is cold and you will need to be prepared, but the air is very clear providing the best mountain views.

Spring (March-May) Days are increasingly warm and the rhododendrons are in bloom. Mist and clouds are not uncommon.

Summer (June-August) The monsoon season. It will rain every day, although generally in the evening and night. The hills turn lush and green and at higher elevations the alpine plants will bloom. Visibility can be mixed.

Autumn (September-November) The most pleasant trekking season where days are warm, but not hot; there is little chance of snow and skies are clear.

Nepal climate - Dust off those walking boots

Clothing

What should I bring?
The Nepal climate can vary considerably, so it's good to keep that in mind when packing your backpack. If you're travelling to Nepal in summer, bring cotton clothing. Anything light and breathable is recommended, preferably with long sleeves and trousers to protect against the bright sun and any insects. The winter months (December and January) can be quite cold, so you'll need a thick sweater or jacket and warm trousers. Don't forget your sunglasses though - the air may be cold but you'll still be able to enjoy the sunshine.

Good sturdy hiking boots are more than a luxury. Even if you're not going trekking, there's nearly always a hike planned somewhere along the way and the roads aren't always paved so some solid footwear will make walking a lot more comfortable. We recommend that you bring well worn boots from home, rather than hire or purchase them on arrival.