The short answer
When to go to Lachung
April–May and September–October are the best months, with clear skies and comfortable daytime temperatures for exploring the valley. December–February brings sub-zero nights and heavy snow that can cut off roads, while June–August is the monsoon, when landslide-prone mountain roads are at their most unreliable. Given the altitude and cold, seniors should discuss the trip with a doctor beforehand and avoid the depths of winter and peak monsoon.
Month by month
Lachung weather by month
| Month | High | Low | Rain | Verdict | What to expect |
|---|---|---|---|---|---|
| January | 5°C | -10°C | 15 mm | Extreme cold; heavy snow can block roads | |
| February | 7°C | -10°C | 34 mm | Still bitterly cold overnight | |
| March | 12°C | -2°C | 57 mm | Snowmelt; still cold at night | |
| April | 15°C | 3°C | 83 mm | Spring flowers; clear and pleasant | |
| May | 17°C | 7°C | 104 mm | Clear skies; comfortable by day | |
| June | 20°C | 10°C | 168 mm | Rain increasing; monsoon nearing | |
| July | 20°C | 12°C | 219 mm | Heaviest monsoon rain; roads landslide-prone | |
| August | 20°C | 11°C | 185 mm | Still very wet and cloudy | |
| September | 19°C | 10°C | 146 mm | Autumn clarity returning | |
| October | 17°C | 4°C | 61 mm | Clear skies; moderate temperatures | |
| November | 13°C | -1°C | 17 mm | Dry but cold overnight | |
| December | 10°C | -6°C | 6 mm | Sub-zero nights; heavy snow begins |
Temperatures and rainfall are long-term monthly averages. Check the forecast a few days before you travel.
Seasons at a glance
Lachung seasons for families and seniors
The easiest months: April, May, September and October
- April: Spring flowers; clear and pleasant
- May: Clear skies; comfortable by day
- September: Autumn clarity returning
- October: Clear skies; moderate temperatures
Good, with small trade-offs: March and November
- March: Snowmelt; still cold at night
- November: Dry but cold overnight
Possible, with planning: June
- June: Rain increasing; monsoon nearing
Best avoided with parents or children: January, February, July, August and December
- January: Extreme cold; heavy snow can block roads
- February: Still bitterly cold overnight
- July: Heaviest monsoon rain; roads landslide-prone
- August: Still very wet and cloudy
- December: Sub-zero nights; heavy snow begins
Useful answers
Best time to visit Lachung: FAQs
What is the best month to visit Lachung?
April, May, September and October are the best months to visit Lachung, with March and November also good. April–May and September–October are the best months, with clear skies and comfortable daytime temperatures for exploring the valley. December–February brings sub-zero nights and heavy snow that can cut off roads, while June–August is the monsoon, when landslide-prone mountain roads are at their most unreliable. Given the altitude and cold, seniors should discuss the trip with a doctor beforehand and avoid the depths of winter and peak monsoon.
Which months should I avoid in Lachung with elderly parents?
January, February, July, August and December are the months to avoid with older travellers. Extreme cold; heavy snow can block roads Still bitterly cold overnight
When does it rain most in Lachung?
July is the wettest month, with about 219 mm of rain on average. The hottest month is July, with average highs around 20°C.