Helambuसेर्माथाङ
A Hyolmo village at the southern end of the Helambu trek, linked by road to Melamchi.
Sermathang is a Hyolmo village on the slopes below the forest of Langtang National Park, at the southern end of the Helambu trail. For many trekkers it is the last night before a jeep or bus down to Melamchi Bazaar and Kathmandu, reached after an easy walk from Tarkeghyang.
The village spreads over terraces and orchards, with a gompa and views across the Melamchi valley. In clear weather the Jugal range is visible to the north-east.
The people of Sermathang are Hyolmo and speak the Yolmo language. Tourism, farming and seasonal migrant work make up the local economy, and apples and potatoes grow on the terraces around the village. Gravel roads now connect the village with Melamchi Bazaar and Kathmandu, which has made it a common start or finish for shorter Helambu walks. The village lies just below the forest edge of Langtang National Park, so walks above it quickly enter the park.
Visit the gompa
Walk clockwise and ask before entering.
Return to Kathmandu
By jeep or bus via Melamchi Bazaar, roughly 5-7 hours in total, or walk down to Melamchi in 4-5 hours.
Forecast for 2,625 m. Conditions change fast in the mountains.
Weather data: MET Norway, licensed CC BY 4.0. A forecast, not a guarantee.
Mar-Apr, Oct-Dec
A few lodges and homestays.
No partner stays are listed here yet. List a property.
On foot from Tarkeghyang (about 3-4 hours), or by road from Melamchi Bazaar.
Nearest hub: Kathmandu
Nearest hub: Melamchi. Times are typical ranges, not schedules, and vary with roadworks, weather and the season.
By car or jeepfrom Melamchi
A rough dirt road links Melamchi Bazaar to Sermathang; the sources read do not give a time band, and conditions change year to year.
Road: Rough earth road up from Melamchi Bazaar; a jeep or 4WD is normally needed.
When to set off: Drive in the morning: the earth road is slow and drivers avoid it after dark.
On footfrom Tarkeghyangabout 3-4 hAbout 3-4 h from Tarkeghyang on a gently contouring trail
On foot from Tarkeghyang, about 6 km on a gently contouring trail.
When to set off: An easy half day; most walkers arrive in time for lunch.
Permit required
The Helambu trek crosses Shivapuri Nagarjun National Park near Sundarijal and Langtang National Park on the higher ridge; both charge entry. The route is on the Nepal Tourism Board's list of treks requiring a licensed guide and an agency-issued TIMS card.
Verify before travel: permit rules and fees change. Checked 2026-10-06 against Nepal Tourism Board: Park entry fees.
On the Helambu Trek.
What this place is typically exposed to, and when. These are seasonal patterns, not a report on conditions now.
Landslidesmoderate in a typical yearJun-Sep
Steep forested hillsides on these ridges shed small slides and washed-out trail sections during monsoon rain; rocky trails stay slippery after rain or frost.
Floodingmoderate in a typical yearJun-Sep
The Melamchi river carries a documented monsoon flash-flood and debris-flow risk: in June and July 2021 long monsoon rain loosened material upstream, the river was dammed and the breach swept away homes, roads and bridges in the valley.
Road blockagesmoderate in a typical yearJun-Sep
The dirt road down to Melamchi Bazaar is earth-surfaced and slide-prone in monsoon rain, so the drive out can be slow or interrupted.
Othermoderate in a typical yearJun-Sep
From June to August the forest trails are slippery after rain, leeches are common and the mountains are usually hidden by cloud.
Snowmoderate in a typical yearJan-Mar
The upper part of the Helambu ridge, around Tharepati, takes snow in late winter and early spring, which can make the high traverse slow or impractical.
Coldmoderate in a typical yearDec-Feb
December to February nights are near or below freezing at these altitudes and lodges are lightly heated; bring a warm sleeping bag and down layers.
Check current conditions before you travel
Roads, trails, passes and flights change with the weather and with roadworks, and nothing on this page describes conditions today. Before you set off, check the Department of Hydrology and Meteorology for weather and flood warnings, the Nepal Disaster Risk Reduction Portal for incidents, and the local authority, police or your licensed operator for road, trail and flight status.
A short trek that starts on the edge of Kathmandu at Sundarijal and follows forested ridges to Tharepati (about 3,650 m), then visits the Hyolmo villages of Melamchi Gaon, Tarkeghyang and Sermathang before a drive back.
By jeep or bus via Melamchi Bazaar, roughly 5-7 hours in total depending on the road.
About 2,500-2,625 m.
Mainly Hyolmo people, who follow Tibetan Buddhism and speak the Yolmo language.
Trek stop · 2,215 m
A ridge-top lodge village above Kathmandu, the first night of the Helambu trek.
Trek stop · 2,470 m
A ridge village on the Helambu trek, a day below the high point at Tharepati.
Trek stop · 2,590 m
A Hyolmo village with a gompa below Tharepati on the Helambu trek.
Trek stop · 2,600 m
The largest Hyolmo village in Helambu, with closely built stone houses and a gompa.
Trek stop · 3,650 m
A high ridge stop at about 3,650 m where the Helambu and Gosaikunda trails meet.
