Kathmandu changes its vibe with every season, and honestly, the weather can make or break your trip. If you want pleasant weather and those famous clear mountain views, autumn (September to November) and spring (March to May) are your best bets. These months usually offer comfortable temperatures, dry air, and bright skies. Exploring the city or heading out on a trek just feels so much easier.
In autumn, you’ll get crisp air, steady weather, and some of the clearest Himalayan views you’ll probably ever see. Spring? It’s warmer, the rhododendrons explode into bloom, and festivals bring the whole valley to life. Both seasons really nail that sweet spot between climate and culture, which is probably why most travelers pick them.
But hey, other times can work too, depending on what you want. Winter brings quieter streets and snowy mountains. Summer’s monsoon season turns everything green, but also means heavy rain. If you know what each season offers, you can pick the moment that fits you best.
Overview of Kathmandu’s Climate
Kathmandu sits in a valley at about 1,400 meters above sea level. This gives it a subtropical highland climate, so nights are cooler and days stay mild. You’ll see sharp seasonal changes—dry winters, wet summers, and two travel-friendly windows in spring and autumn.
Seasonal Weather Patterns
Kathmandu has four main seasons, and each one shapes your trip in a different way. Spring (March–May) brings mild days, flowers everywhere, and clear skies before the monsoon hits. Summer (June–August) is the monsoon season, with heavy rain and sticky humidity. Trekking gets tough but the valley turns super lush.
Autumn (September–November) is the crowd favorite. Days are sunny, skies stay clear, and temperatures feel just right for being outside. Winter (December–February) cools things down, with chilly mornings and nights, but you can still sightsee during the day without freezing.
You’ll get about 200 clear days each year here, so Kathmandu’s actually pretty reliable for mountain views. But your timing really decides if you’ll deal with dry air, heavy rain, or those cool, crisp days.
Temperature and Rainfall by Month
Kathmandu’s temperatures swing from about 2°C (36°F) on winter nights to 29°C (84°F) during summer days. Rainfall averages 1,400 mm (55 in) a year, and most of it pours down from June to August.
| Month | Avg. Low (°C) | Avg. High (°C) | Rainfall (mm) |
|---|---|---|---|
| Jan | 3 | 18 | 14 |
| Apr | 12 | 24 | 8 |
| Jul | 20 | 28 | 365 |
| Oct | 14 | 25 | 40 |
| Dec | 4 | 19 | 13 |
November to April stays driest, with clearer skies and barely any rain. If you visit in July, expect frequent showers that can definitely mess with outdoor plans.
Impact of the Himalayas on Local Climate
The Himalayas play a huge role in Kathmandu’s weather. They block cold winds from Central Asia, so winters feel milder than you’d expect at this height. At the same time, the mountains trap moisture during summer, which brings heavy monsoon rain to the valley.
Those crisp, clear skies in autumn and spring? Thank the mountains for that. Cooler air from the peaks drops the humidity, which means you get those knockout mountain views. Honestly, that’s why trekking conditions are so good during these seasons.
Kathmandu’s weather can flip pretty quickly because of where it sits. Even in summer, nights get cool, and during the monsoon, sudden showers can catch you off guard. Microclimates pop up all over, so weather in the valley might not match what’s happening in the hills.
Best Time to Visit Kathmandu for Ideal Weather
The most comfortable time to explore Kathmandu is when skies are clear, rain is rare, and temperatures stay mild. That’s when trekking, sightseeing, and just soaking up Himalayan views feels effortless.
Why Autumn Is Considered the Best Season
Autumn in Kathmandu, from late September through November, really brings the best weather. Days feel warm, with highs around 20–26°C (68–79°F), and nights cool off to 4–14°C (39–57°F). After the monsoon, rain drops off and the air turns crisp, making visibility fantastic.
If you want those uninterrupted Himalayan views, this is your time. You can see snow-capped peaks right from the city, and trekking trails stay dry and open. Classic treks like the Annapurna Circuit and Everest Base Camp are at their best now.
Autumn also lines up with big festivals like Dashain and Tihar. The city buzzes with cultural events, so you can mix sightseeing with local celebrations for a trip that’s both scenic and immersive.
Advantages of Visiting in Spring
Spring, from March to May, is another great choice. Temperatures slowly climb, with daytime highs between 23–29°C (73–84°F) and nights cooling down to 9–16°C (48–61°F). Rain doesn’t get heavy yet, though you might get the odd short shower.
The real highlight? Rhododendrons. They’re Nepal’s national flower, and in spring, the hills and valleys around Kathmandu burst with red and pink blossoms. It’s a stunning time for treks and day trips.
You’ll find the trekking trails busier, since spring is the second most popular time after autumn. Festivals like Holi and Bisket Jatra also happen now, so you can dive into Kathmandu’s lively traditions.
Weather Considerations for Sightseeing
Weather really decides how much you’ll see and do in Kathmandu. Clear skies are a must for those mountain views, and dry days make walking the city and visiting temples way more comfortable. Autumn and spring usually deliver on both.
Monsoon months (June to August) bring heavy rain, muddy trails, and poor visibility. Winter (December to February) is drier but colder, with daytime highs near 15–20°C (59–68°F) and nights that can get close to freezing.
If you want to sightsee without weather hassles, aim for autumn or spring. These seasons give you the best shot at Kathmandu’s landmarks and those sweeping Himalayan panoramas.
Spring in Kathmandu: March to May
Spring in Kathmandu means mild temps, flowers everywhere, and blue skies. You’ll get great weather for wandering the city, joining festivals, and catching those mountain views before the monsoon rolls in.
March in Kathmandu: Early Blooms and Mild Weather
March kicks off warmer days after winter’s chill. Temperatures usually land between 9°C (48°F) and 23°C (73°F), which feels perfect for sightseeing or short hikes around the valley. Mornings are often clear, and the air feels fresh.
Festivals take over this month. Holi, the festival of colors, turns the streets into a wild scene of powder, music, and dancing. Sometimes, Bisket Jatra in Bhaktapur starts in late March, with chariot parades and old traditions.
Nature wakes up too. Rhododendrons and other flowers start blooming, especially in hills like Shivapuri and Phulchowki. If you’re into birds, migratory species return to the valley around now.
You’ll want a light jacket for evenings, since nights still get cool. But days are just right for exploring Durbar Square, Swayambhunath, or heading to Nagarkot for those Himalayan views.
April in Kathmandu: Festivals and Clear Skies
April brings some of the clearest skies of the year. Average temperatures hover between 12°C (54°F) and 24°C (75°F), which is great for outdoor stuff. Rain barely shows up, so it’s a solid month for trekking.
Mid-April is time for the Nepali New Year, with parades and cultural events all over. In Bhaktapur, Bisket Jatra keeps going, drawing crowds for its dramatic chariot pulls and community parties.
Trekking near Kathmandu is super popular now. Trails around Shivapuri Nagarjun National Park or the hike to Chisapani are top picks. The Himalayas look sharp, with less haze than later in spring.
Light clothes work during the day, but grab a sweater for chilly mornings. April gets busy, so book your place to stay early if you can.
May in Kathmandu: Warm Days and Outdoor Activities
May turns up the heat, with daytime highs hitting 29°C (84°F) and lows around 17°C (63°F). Afternoons feel hot, but mornings and evenings are still nice for getting out.
You might notice some haze in the valley as monsoon approaches, but early in the day, skies stay clear enough for mountain views.
Buddha Jayanti happens in May, marking the Buddha’s birth. Locals gather at Boudhanath Stupa and Swayambhunath for prayers and ceremonies.
Outdoor fun is big this month. Hikes to Nagarkot or Phulchowki are still full of spring flowers. White-water rafting on the Trishuli River gets popular as water levels rise.
Wear breathable clothes for the heat and bring water and sunblock. Even with the warmth, May still lets you enjoy Kathmandu’s culture and nature.
Summer and Monsoon: June to August
Summer means warm temps, heavy rain, and a total makeover for the valley. Everything turns green, tourists thin out, and weather disruptions can shake up your plans.
June in Kathmandu: Start of Monsoon
June usually starts with warm days—think 25–30°C. Humidity climbs, and by mid-month, the first proper rains arrive. The monsoon sneaks in gradually, so early June might still give you a shot at outdoor sightseeing.
Rain showers mostly hit in the late afternoon or evening. Roads get muddy, and traffic jams up. Trekking in the hills? Not a great idea, since trails get slippery and leeches come out.
On the bright side, the city looks fresh as plants and trees go wild. Tourist spots like Thamel quiet down, so it’s easier to poke around markets and restaurants. If you’re coming in June, pack light rain gear, waterproof shoes, and plan for slowdowns.
July in Kathmandu: Peak Rainfall and Greenery
July is the wettest month in Kathmandu. Heavy rain hits almost every day, sometimes for hours at a stretch. Temperatures stay warm, usually 20–28°C, but the humidity can really get to you.
All that rain turns the valley into a green paradise. Rice fields glow around the city, and hillsides look extra lush. Of course, this beauty comes with a price—landslides in the hills and flight delays are pretty common now.
Outdoor sightseeing gets tricky, but there’s still plenty to do indoors. Museums, temples, and cultural shows offer a dry escape. If you’re into photography, the moody skies and green fields can look amazing.
Bring waterproof bags, quick-dry clothes, and sturdy sandals. Expect travel to take longer and keep your plans flexible.
August in Kathmandu: Fewer Crowds and Lush Landscapes
By August, the monsoon starts to ease up a bit, though rain showers still pop up pretty often. The rain doesn’t hit as hard as it does in July, and you might actually catch longer stretches of sunshine between storms.
Temperatures feel mild, usually hovering between 20 and 27°C. Tourist numbers stay low, so you get to see cultural sites without fighting through crowds.
Popular spots like Boudhanath Stupa and Durbar Square seem almost peaceful compared to the packed autumn months. Booking a place to stay is easier, and you might even find better prices.
The valley turns ridiculously green, with rice paddies and gardens thriving everywhere you look. Festivals like Janai Purnima and Gai Jatra fill the city with traditional celebrations, so you can really experience local culture—even if it’s still a bit rainy.
If you’re coming in August, pack an umbrella, rain jacket, and insect repellent for sure. Trekking isn’t the safest bet, but exploring the city and taking short walks around the valley can be surprisingly rewarding when the weather clears up.
Autumn in Kathmandu: September to November
Autumn in Kathmandu brings dry, steady weather, cooler nights, and those famously clear skies that reveal the Himalayas in all their glory. This is also when some of Nepal’s biggest festivals happen, so it’s honestly one of the best times to visit.
September in Kathmandu: Transition and Festivals
September wraps up the monsoon, so you’ll notice mild days and crisp evenings. The rain finally backs off, leaving the air fresh and the landscape extra green.
Skies start to open up, giving you the first real mountain views after weeks of clouds. The city also gets more energetic with cultural events.
Indra Jatra, one of Kathmandu’s most important festivals, happens this month. It centers around Kathmandu Durbar Square, with masked dances, chariot processions, and traditional music that offer a window into Newar heritage.
September is a great time to kick off trekking. Trails in the valley and beyond dry out, and the cooler weather makes walking a lot more comfortable. Bring layers—light stuff for the day, warmer clothes for the evening.
October and November: Clear Views and Major Events
By October, the weather settles into some of the clearest days you’ll get all year. Days feel warm, nights cool down but don’t freeze.
The visibility is just fantastic, with uninterrupted views of the Himalayas—Langtang and Ganesh Himal, to name a couple. Major festivals light up the city right now.
Dashain, Nepal’s biggest celebration, fills Kathmandu with family gatherings, animal sacrifices, and temple rituals. Not long after, Tihar—the festival of lights—brightens up homes and streets with candles and oil lamps, making everything look extra welcoming.
November keeps up the pattern of dry days and clear skies, but temperatures start to drop a bit more. Tourists keep rolling in, so it’s smart to book your stay early.
If you’re into photography, November brings some of the best lighting for capturing both city temples and those mountain backdrops.
Winter in Kathmandu: December to February
Winter in Kathmandu brings cool mornings, bright afternoons, and mostly dry days. The air feels crisp, and you won’t see as many tourists.
You can still catch clear views of the hills and mountains. Festivals, hikes, and city walks are totally doable, but you’ll want warm clothes, especially after sunset.
December in Kathmandu: Crisp Air and Fewer Tourists
December means chilly mornings and evenings, with daytime highs around 20°C and lows near 4°C. The skies usually stay clear, so you get some great Himalayan views.
Rain hardly ever falls, but if it does, the higher hills could see a bit of snow. With fewer tourists than in autumn, you can roam temples, markets, and Durbar Squares without much hassle.
Popular neighborhoods like Thamel and Patan feel a lot quieter, and you’ll likely find lower accommodation prices. December also brings the Kathmandu International Mountain Film Festival (KIMFF) to town.
If you stick around for New Year’s Eve, expect music, food, and lively gatherings in the city’s nightlife spots. Outdoor activities are still on the menu.
You can try day hikes around the valley—Nagarkot or Shivapuri are both solid picks, with crisp air and blue skies making the walks pretty memorable.
January and February: Cool Temperatures and Tranquility
January arrives as the coldest month in Kathmandu. Daytime highs average 18°C, while nights can dip close to 3°C.
Rain doesn’t show up much, but you might get a quick shower or even rare snow on the nearby hills. Festivals keep things interesting during winter.
Lhosar, the Tibetan New Year, often lands in January. Maha Shivratri usually happens in February, when thousands gather at Pashupatinath Temple to honor Lord Shiva. It’s busy, but the atmosphere feels spiritual and lively.
February starts the slow shift toward spring. Days get a little warmer, up to 21°C, though nights stay chilly. You might notice a layer of haze in the valley, but higher spots like Chandragiri or Nagarkot still deliver clear mountain views.
This time is perfect for hiking and biking on dry trails. With fewer tourists around, you’ll enjoy a slower pace and more chances to chat with locals in tea shops, markets, or tucked-away courtyards.
Festivals and Cultural Highlights by Season
Kathmandu’s festivals usually line up with seasonal weather patterns, so you can enjoy them when the skies are clear and the weather feels just right. Many celebrations mix religious rituals, family time, and public events that spill out into the city’s streets and temples.
Spring Festivals: Bisket Jatra and Holi
Spring in Kathmandu brings warmer days and blooming rhododendrons, which set a perfect backdrop for festivals. Holi, the festival of colors, usually happens in March.
Locals throw powdered dyes and spray water, turning city squares into wild, energetic scenes. The mild weather makes joining the outdoor fun pretty comfortable.
Another big spring event is Bisket Jatra, celebrated in Bhaktapur and parts of Kathmandu in April. The festival marks the Nepali New Year, with huge wooden chariots pulled through narrow streets.
Crowds gather as the chariots sway and even clash, all symbolizing good fortune. Both festivals are super interactive.
If you’re visiting, expect big crowds and plenty of street action. Comfy shoes and clothes you don’t mind staining are must-haves for Holi.
Autumn Festivals: Dashain, Tihar, and Indra Jatra
Autumn is Kathmandu’s most festive season, with clear skies and dry weather making everything easier. Dashain, Nepal’s longest festival, runs for 15 days and honors the goddess Durga.
Families come together for rituals, animal sacrifices, and blessings, while kites fill the sky. Right after Dashain comes Tihar, or the festival of lights.
Homes and streets shine with oil lamps and candles, and each day celebrates a different animal—crows, dogs, cows. The final day, Bhai Tika, is all about the bond between brothers and sisters.
Indra Jatra, held in September, stands out as uniquely Kathmandu. The festival honors Indra, the rain god, with masked dances, processions, and the raising of a tall ceremonial pole.
You can also see the Living Goddess Kumari carried through the city in a chariot.
Seasonal Experiences at Pashupatinath and Swayambhunath
Some cultural experiences in Kathmandu aren’t just about a single festival—they’re more about the changing rhythm of the seasons. Pashupatinath Temple, the holiest Hindu site in Nepal, comes alive with daily rituals, and those feel especially moving on winter mornings when mist curls up from the Bagmati River.
In spring and autumn, bigger crowds gather on the temple grounds, especially during Shivaratri. Thousands of devotees camp out along the riverbanks.
If you visit during these times, you’ll get a real, up-close look at Hindu traditions and ceremonies.
At Swayambhunath, or the Monkey Temple as most people call it, the experience shifts with the weather. Clear autumn skies open up wide views across the valley.
Spring, on the other hand, brings a riot of prayer flags fluttering against blooming trees.
Both sites stay active all year, but honestly, the seasonal vibe really shapes how you take in their rituals and the whole atmosphere.