Best Time to Visit North Sikkim (2026): Month-by-Month Weather & Seasons
North Sikkim is best from April to June, when Yumthang's rhododendrons bloom, and in October and November for clear skies. December to March brings deep snow at Zero Point and Gurudongmar and very cold nights; roads may close after storms. The monsoon often cuts the road with landslides.
- Best time
- April to June, and October to November
- Peak season
- April–May (flowers) and October
- Quieter months
- March, late November
- Avoid
- July–August (landslides); heavy-snow weeks in winter
Seasons in North Sikkim
Spring · April–June
Yumthang 'valley of flowers' in bloom; mild days in Lachung.
Monsoon · July–September
Landslides frequently close the roads to Lachung and Lachen.
Autumn · October–November
Clear, dry and crisp; great mountain views.
Winter · December–March
Snow at Zero Point, Gurudongmar and Chopta; below freezing; occasional closures.
North Sikkim weather month by month
Typical daytime temperatures for Lachung (about 2,700 m); they vary year to year.
| Month | Temp | Rain | Verdict | What to expect |
|---|---|---|---|---|
| January Deep snow; very cold | -6–6 °C | Dry | Okay | Deep snow; very cold |
| February Snow; some closures | -4–8 °C | Dry | Okay | Snow; some closures |
| March Snow melting | -1–11 °C | Some rain | Good | Snow melting |
| April Rhododendrons begin | 2–14 °C | Some rain | Best | Rhododendrons begin |
| May Yumthang in full bloom | 6–17 °C | Wet | Best | Yumthang in full bloom |
| June Green; early monsoon | 9–19 °C | Wet | Good | Green; early monsoon |
| July Landslides; roads shut | 10–19 °C | Very wet | Avoid | Landslides; roads shut |
| August Very wet | 10–19 °C | Very wet | Avoid | Very wet |
| September Rain easing | 8–18 °C | Wet | Okay | Rain easing |
| October Clear skies | 3–14 °C | Some rain | Best | Clear skies |
| November Crisp, clear; first snow up high | -1–10 °C | Dry | Best | Crisp, clear; first snow up high |
| December Snowy; cold | -4–7 °C | Dry | Okay | Snowy; cold |
Festivals
- LosarFebruary–March
- Saga DawaMay–June
Tips
- Permits are required and arranged in Gangtok a day ahead.
- Spend a night in Lachen before Gurudongmar to acclimatise.
- Carry heavy winter clothing from October to April.
Plan North Sikkim for the right season
Tell us your dates and we'll suggest the best route, stays and permits for that time of year.
North Sikkim: frequently asked questions
Which is the best month to visit North Sikkim?+
May for flowers at Yumthang, or October for clear skies.
When is there snow in North Sikkim?+
From December to March at Zero Point, Gurudongmar and Chopta Valley.
Is North Sikkim open in the monsoon?+
Often not reliably: landslides close the roads frequently from June to September.
How cold is Lachung in winter?+
Daytime around 0–7 °C, well below freezing at night.