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Nepal in May

May is Nepal living on borrowed sunshine — hot and hazy in the lowlands, but up high it delivers the year's most famous fortnight: the Everest summit window.

By the BriefNepal Travel Desk · Updated July 5, 2026 · Verified for accuracy

A glimpse of Nepal in May

Overview

May splits Nepal in two. Below about 2,000 m it is the year's hottest, stickiest stretch — Kathmandu pushes toward 30°C, the Terai bakes past 35°C, and a milky pre-monsoon haze blurs the horizons. But climb, and May is glorious: the high trails are warm by Himalayan standards, passes are snow-free, and in the second half of the month comes the event the mountaineering world waits all year for — the Everest summit window, when hundreds of climbers push for the top in the brief calm before the monsoon.

May is also a sacred month: Buddha Jayanti, the Buddha's birthday, usually falls on the full moon of May, and nowhere marks it like Lumbini — his birthplace — and the great stupas of Kathmandu. Treat May as the spring season's last call: trek high, start early, and expect afternoon thunder-showers to build as the month closes. For the season-wide picture, see the full spring guide.

May Weather & Temperatures

Region	Typical May temps	Conditions
Kathmandu Valley	16–29°C	Hot, hazy afternoons; rising humidity, evening storms
Pokhara	18–30°C	Warm and increasingly showery late-month
Terai (Chitwan, Lumbini)	22–36°C+	Very hot; early-morning activity only
Mid-hills (2,000–3,000 m)	9–20°C	Warm walking; afternoon cloud build-up
High mountains (3,500 m+)	0 to −8°C nights	The year's mildest high-altitude conditions

The pre-monsoon pattern strengthens through May: clear mornings, cloudy or stormy afternoons. Mountain views are best at dawn, and by late May the first monsoon bursts can reach eastern Nepal.

Where to Go in May

High treks — EBC (with summit-season buzz at base camp), Gokyo, upper Annapurna Circuit — the warmth makes high camps unusually comfortable.
Lumbini for Buddha Jayanti — processions, butter lamps and chanting at the Maya Devi Temple; Boudhanath and Swayambhunath in Kathmandu glow the same night.
Rain-shadow previews — late May is a fine time to start an Upper Mustang itinerary as the monsoon-proof season begins.
Rara Lake — the far-western lake is at its blue best between snowmelt and rains.
Skip midday Terai safaris — May heat is punishing; if Chitwan calls, dawn drives only.

Festivals & Events in May

Buddha Jayanti — the Buddha's birth, enlightenment and passing, marked on the full moon usually falling in May. Lumbini hosts the largest celebrations at the Maya Devi Temple and the international monastery zone; in Kathmandu, pilgrims circle Boudhanath and Swayambhunath with butter lamps from before dawn.

Up high, the summit window dominates: weather teams call the calm spells, and Everest, Lhotse and Makalu see their season's summit pushes — EBC and Kala Patthar buzz with anticipation.

Packing & Practical Tips

Start everything at dawn — views, walks, drives and safaris; afternoons belong to heat, haze and thunderheads.
Pack real sun protection and electrolytes for the lowlands; light rain gear for late-month showers.
Trekking: conditions are prime but book promptly — May shares April's demand until the final week.
Flights: morning departures are more reliable as afternoon storms increase.
Consider the shoulder play: late May offers thinning crowds at near-peak conditions high up — a savvy trade for flexible trekkers.

Frequently Asked Questions

Is May a good time to visit Nepal?

Yes for high-altitude trekking and Buddhist festivals; less so for lowland comfort. The high trails enjoy their mildest conditions of the year and Buddha Jayanti lights up Lumbini, but Kathmandu and the Terai are hot, hazy and increasingly stormy.

How hot is Nepal in May?

Kathmandu reaches 28–30°C with humidity building; the Terai regularly exceeds 35°C. Up high it is the opposite story — trekking altitudes see their warmest, most comfortable nights of the year.

Why do Everest climbers summit in May?

Late May typically brings brief calm spells between the winter jet stream lifting off the summit and the monsoon arriving — the "summit window". Most of the year, hurricane-force winds or heavy snow make the top unclimbable.

When is Buddha Jayanti?

Buddha Jayanti falls on the full moon usually in May (occasionally late April). Lumbini, the Buddha's birthplace, holds the biggest celebrations, with major gatherings at Kathmandu's Boudhanath and Swayambhunath stupas.

Can you still trek in late May?

Yes — high routes remain in good condition into early June, with warm nights and thinning crowds. Expect afternoon cloud and showers to build, and treat any lowland approach days as hot-weather walking.

Is May good for Chitwan safaris?

It is the toughest month: intense heat and humidity limit activity to early mornings. Wildlife does concentrate at waterholes, which helps sightings — but October–March is far more comfortable.

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By the BriefNepal Travel Desk

Researched and maintained by our Nepal-based editorial team and reviewed for accuracy. Last updated July 5, 2026. Prices, permits and conditions change, always verify before you travel. Spotted something out of date? Let us know.

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