The weather on the Mardi Himal Trek can change dramatically, not just from season to season but from morning to afternoon and from forest to ridge. You might start the day under clear skies with the peaks sharp against the blue, walk into mist by late morning, and watch the clouds clear again at sunset. Understanding these patterns helps you choose the right month, pack the right clothes and plan each day to catch the best views.
This guide explains the climate on the Mardi Himal Trek month by month, with typical conditions at different altitudes, rainfall, snow, visibility and crowd levels. For a shorter recommendation on when to go, see the best time for the Mardi Himal Trek.
What Shapes the Weather on Mardi Himal
Three factors dominate the weather on the trek. First, the South Asian monsoon brings moist air from the Bay of Bengal between roughly June and September, causing heavy rain in the foothills around Pokhara, one of the wettest cities in Nepal. Second, altitude: temperatures fall by roughly six to seven degrees Celsius for every thousand meters you climb, so High Camp is much colder than Pokhara on the same day. Third, daily cycles: in most seasons, clear mornings give way to cloud building from the valleys by late morning, with clearing again in the evening.
The Mardi Himal ridge sits close to the high peaks and directly above the moist lowlands, which means cloud forms readily around it. This is why early starts are so important for views.
Temperatures at a Glance
| Season | Pokhara day | Low Camp night | High Camp night | Base Camp at dawn |
|---|---|---|---|---|
| Winter (Dec–Feb) | Mild, around 18–22°C | Below freezing | Around −5 to −15°C | Well below freezing, windy |
| Spring (Mar–May) | Warm to hot | Around 0–8°C | Around −5 to 3°C | Below freezing early in the season |
| Monsoon (Jun–Aug) | Hot and humid | Mild and damp | Around 3–8°C | Near or just above freezing |
| Autumn (Sep–Nov) | Warm | Around 0–8°C | Around −8 to 2°C | Below freezing |
These are typical ranges rather than precise records, and individual days vary. Wind chill on the upper ridge can make it feel much colder. See Mardi Himal temperature by month and by camp for more detail.
Month by Month
January
The heart of winter. Skies are often very clear, especially in the mornings, and the snow-covered peaks look superb. It is the coldest month: nights at High Camp are well below freezing and the trail above High Camp is often icy or snow-covered. Some lodges may close temporarily in very cold spells. Few trekkers are on the trail. Microspikes are usually essential. Read Mardi Himal in January.
February
Still cold, but the days lengthen and temperatures begin to rise late in the month. Snowfall is possible, and the upper trail can remain icy. Views are often good. Late February sees the first signs of spring in the lower forest. See Mardi Himal in February.
March
Spring begins. Temperatures rise, the lower forest starts to flower and the trekking season picks up. Mornings are usually clear, with cloud building in the afternoon. Late snow is still possible on the upper ridge, particularly early in the month. See Mardi Himal in March.
April
Peak spring. Rhododendrons bloom through the forest, and the trail is at its most colourful. Days are warm lower down and pleasant on the ridge. Haze from the lowlands and afternoon cloud are more common than in autumn, so mountain views are best early. Occasional afternoon showers or storms occur. See Mardi Himal in April.
May
The pre-monsoon month. It is the warmest month before the rains, with hazy skies and building afternoon clouds. Thunderstorms become more frequent toward the end of the month, bringing lightning risk on the exposed ridge. Rhododendrons linger at higher altitudes. See Mardi Himal in May.
June
The monsoon arrives, usually in the first half of the month. Rain becomes frequent, especially in the afternoons and at night, and cloud often hides the peaks. Leeches appear in the forest. Early June can still offer some clear mornings. See Mardi Himal in June.
July
The wettest time of year. Heavy rain is common, trails are muddy and slippery, and leeches are abundant below Low Camp. Mountain views are rare but can be spectacular when clouds briefly part. Landslides can affect roads. The trail is very quiet. See Mardi Himal in July.
August
Still monsoon, though rain may ease slightly late in the month. Forests are lush and green, and wildflowers bloom on the upper slopes. Views remain unreliable. See Mardi Himal in August.
September
The transition month. Early September is often still wet, while the monsoon usually retreats during the second half, bringing clearer skies. Trails can still be muddy early in the month. Crowds begin to build late in the month. See Mardi Himal in September.
October
The most popular month. After the monsoon, the air is clean, skies are clear and the weather is stable. Days are pleasant and nights at High Camp are cold. High Camp and Low Camp lodges can be busy. Dashain, Nepal's biggest festival, often falls in October. See Mardi Himal in October.
November
Crisp and clear. Views are excellent, rain is rare and crowds thin gradually after the first half of the month. Nights get colder, and the first snow on the upper ridge is possible late in the month. Many trekkers consider November the perfect month. See Mardi Himal in November.
December
Early winter. Skies are usually clear and the air sharp, with cold nights and the possibility of snow above High Camp. The trail is quiet, and Christmas and New Year bring a small influx of trekkers. See Mardi Himal in December.
Rainfall Patterns
Most of the year's rain falls between June and September, when the Pokhara area receives very heavy rainfall. Spring brings occasional showers and thunderstorms, increasing in May. Autumn and winter are mostly dry, though winter storms can bring snow at altitude. In the monsoon, rain often falls in the afternoon and overnight, leaving some mornings relatively clear. See is the monsoon worth it?
Snow and Ice
Snow can fall on the upper ridge in any month, but it is most likely from December to February, and occasionally in November and March. After snowfall, the trail above High Camp and sometimes between Badal Danda and High Camp can become icy and dangerous without microspikes. In clear winter weather, snow on the ground may linger for weeks in shaded places. Read snow on the Mardi Himal Trek.
Visibility and Mountain Views
Visibility is best from October to December, when the air is clean after the monsoon and before spring haze. January and February are often clear too. In spring, dust and haze from the plains reduce visibility, particularly in the afternoon, although mornings are frequently good. The monsoon brings the poorest visibility. Across all seasons, mornings are clearest. See when the mountains are clear on Mardi Himal.
A Typical Day's Weather
In most seasons outside the monsoon, a typical day on the ridge follows a pattern. Dawn is clear and cold, with the peaks sharp and often glowing at sunrise. By mid-morning, as the sun warms the valleys, cloud begins to rise. By early afternoon, the ridge may be in mist, and in spring there may be a shower. In the late afternoon and evening, clouds often sink back into the valleys, giving clear sunset views and a sea of clouds below the ridge. This is why guides plan early starts and why Low Camp and High Camp are such good places for sunset and sunrise. Read fog and afternoon clouds on Mardi Himal.
How Weather Differs Along the Route
On any single day, the weather you experience depends on where you are on the trail. Around Kande and Australian Camp, the climate is mild and influenced by the Pokhara valley: warm, often hazy in spring, and wet in the monsoon. In the forest between Pitam Deurali and Low Camp, the canopy shelters you from sun and wind, but this band is often wrapped in mist, especially from late morning, and it is the dampest part of the trek. On the open ridge between Low Camp and High Camp, wind and sun are the dominant factors; a calm, sunny morning can feel warm, while a breezy afternoon in cloud feels wintry. Above High Camp, conditions are truly alpine: cold, often windy, with snow and ice likely in winter. Packing for the whole range, not just the average, is the key.
Weather Hazards to Know About
- Thunderstorms: most common from late April to early June and during the monsoon, bringing lightning risk on the exposed ridge. Avoid being high on the ridge in the afternoon when storms threaten.
- Fog: can reduce visibility to a few meters on the ridge, making the path harder to follow. See trekking safely in fog.
- Strong wind: common on the upper ridge, especially in winter, increasing wind chill significantly.
- Snowstorms: occasional in winter and early spring; heavy snowfall can close the upper trail for a time.
- Heavy rain and landslides: during the monsoon, affecting both trails and roads.
Our weather safety guide explains how guides manage these hazards.
Weather and Photography
For photographers, weather is everything. The clearest, sharpest mountain shots come in October, November and the winter months. Spring gives softer light, haze that adds depth to layered ridges, and colourful forests. The monsoon offers dramatic cloudscapes and brief, magical breaks when peaks appear through the mist. Whatever the season, the best light is almost always at dawn and dusk. See our best month for photography.
Crowds by Month
- Busiest: October, then November and April.
- Moderate: March, May, late September and December.
- Quietest: January, February and the monsoon months.
See is Mardi Himal crowded?
Climate Change and Shifting Seasons
Local people and long-time guides often say the seasons are less predictable than they used to be. Monsoons sometimes start later or linger into October, winter snowfall varies widely from year to year, and unseasonal storms occasionally hit in the main trekking months. These shifts mean it is wise not to rely on averages alone. Build a little flexibility into your plans, watch the forecast in the days before you start, and be ready to adjust your itinerary, for example by adding a spare day before the Base Camp hike. Read more in climate change and the Mardi Himal region.
Checking the Forecast
Mountain forecasts are useful for spotting storms, heavy rain and strong winds a few days ahead. Look at forecasts for the relevant altitude rather than for Pokhara alone. Your guide will also watch conditions and talk with lodge owners about the latest weather. See how to read a weather forecast for the trek.
What If the Weather Turns Bad on Your Trek?
Even in the best months, you may meet a cloudy morning or a passing storm. Guides handle this in a few ways: starting earlier to catch a clear window, waiting an extra hour at High Camp for cloud to lift, turning around at the Upper View Point instead of continuing to Base Camp, or using a spare day to try again the next morning. This is why a buffer day is valuable, particularly in spring, winter and the monsoon. See bad weather on summit day.
Packing for the Weather
Whatever the month, pack layers. Even in the monsoon, High Camp can be chilly; even in winter, the lower forest can be warm in the sun. A down jacket, waterproof shell, warm hat and gloves are essential for most of the year. See our guide to what to wear and packing list.
Choosing Your Month
If you want the best chance of clear views and stable weather, go in October or November. If you want flowers and fewer crowds, choose April or March. If you want solitude and do not mind cold, consider December to February. If the monsoon is your only option, it is possible, but plan for rain and flexible days. Whatever you choose, our guides adapt each day's plan to the weather. Check dates for the 9-day Mardi Himal Trek or the 5-day trek from Pokhara, or ask us about conditions for your travel dates.