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Month by month
District by district: the weather, where we would go and what to watch for on the roads.
September is a shoulder or off month across most of Sikkim. Weather and road status change year to year: check current status before you travel.
Gangtok 15 to 21 °C, showers easing
The rains ease through the month. Pang Lhabsol often falls in September. Tsomgo and Nathu La trips resume more reliably, and the valleys are green. Showers and slides are still possible in the first half; by the end of the month skies start to clear for the autumn season.
Go to: Gangtok · Tsomgo Lake · Rumtek
East Sikkim in SeptemberLachung 8 to 17 °C; showers easing
The rains ease and the valleys reopen. Lachung and Yumthang are green and quiet, and in 2026 Lachen permits resumed around 11–12 September. Showers and slides are still possible in the first half. Late September brings clearer skies and the first autumn colour above Lachung.
Go to: Lachung · Yumthang Valley · Singhik
North Sikkim in SeptemberPelling 13 to 20 °C, rain easing
Rain eases through the month and the first clear mornings return in the second half. Roads are still repaired after the monsoon. Treks into the park usually reopen towards the end of the month or early October. Rooms are still discounted before the October rush.
Go to: Pelling · Rabdentse Ruins · Khecheopalri Lake
West Sikkim in SeptemberNamchi 17–25 °C, Ravangla 13–19 °C, rain easing
The monsoon eases through the month, waterfalls are at their fullest and the hills are green. Pang Lhabsol, with masked cham at Ralang Monastery, falls in September in most years. Late September brings the first clear mornings. Roads can still be affected by slides early in the month, so allow …
Go to: Ralang Monastery · Yangang · Ravangla
South Sikkim in SeptemberZuluk 7 to 16 °C; Aritar 15 to 24 °C
The rains ease through the month, though heavy showers and slides still happen in the first half. By late September the air clears, the first sharp mountain mornings return and roads are repaired. It is a quiet, good-value time for the lower villages and, late in the month, for the …
Go to: Aritar · Rolep · Padamchen · Zuluk
Pakyong and the Silk Route in SeptemberRinchenpong 17 to 24 °C; showers easing
Rain eases through the month, and late September often brings the first clear mornings. Cardamom drying kilns smoke in the villages, the paddy turns gold in the lower valleys and prices are still low. Expect some wet days and occasional road delays, but the end of the month can be …
Go to: Rinchenpong · Kaluk · Soreng
Soreng in SeptemberFestivals
Most dates follow the lunar calendar and move each year. Ask us for the date in the year you travel.
Bhutia and Lepcha, with all…
Pang Lhabsol is the festival at which Sikkim honours Kangchenjunga as its guardian deity and remembers the blood-brotherhood pact between the Lepcha …
Bhutia and Lepcha, with all…
Pang Lhabsol honours Kangchenjunga, worshipped in Sikkim as Dzö-nga, the guardian deity of the land, and recalls the blood-brotherhood oath between the …
Packages
Cheapest first. Indicative prices per person, twin sharing.
Questions travellers ask
September is a shoulder or off month across most of Sikkim. Weather and road status change year to year: check current status before you travel.
East Sikkim: Gangtok 15 to 21 °C, showers easing. North Sikkim: Lachung 8 to 17 °C; showers easing. West Sikkim: Pelling 13 to 20 °C, rain easing. South Sikkim: Namchi 17–25 °C, Ravangla 13–19 °C, rain easing. Pakyong and the Silk Route: Zuluk 7 to 16 °C; Aritar 15 to 24 °C. Soreng: Rinchenpong 17 to 24 °C; showers easing.
Rates are lowest in the monsoon (June to mid-September) and in late January and February. They peak in October, around Christmas and New Year, and in May and early June when plains holidays begin. Book the peak weeks early.
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