Sikkim Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Sikkim, India in September.

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Gangtok Pelling Pemayangtse Lachung

Are you planning a trip a to Sikkim, India in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Sikkim in September

Sikkim, India is a region in India. In September, Sikkim experiences a range of weather conditions, with temperatures that range from cold to warm and heavy precipitation.

Temperatures

During the day temperatures vary from cold in Lachung at 12°C (54°F) to warm in Singtām at 25°C (77°F). At night it cools down to 19°C (66°F) in Singtām and 5°C (41°F) in Lachung.

For a closer look at conditions across Sikkim, India, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From heavy rainfall in Lachung with an average of 252 mm (9.9 in) to heavy rainfall in Gangtok with 518 mm (20 in).

Explore Sikkim by month

Pick a month to see the average temperature, rainfall and sunshine in Sikkim - and find the best time to visit. (based on Gangtok)

January11°C (52°F) February12°C (54°F) March16°C (61°F) April18°C (64°F) May21°C (70°F) June22°C (72°F) July22°C (72°F) This monthAugust22°C (72°F) September21°C (70°F) October19°C (66°F) November16°C (61°F) December13°C (55°F)
Best Time to Visit Sikkim →

Best Places to Visit in Sikkim in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Sikkim.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Sikkim

What is the weather like in September for some of the most popular destinations in Sikkim, India?

Temperature range in Sikkim (September)

Precipitation variation in Sikkim (September)

Gangtok

In September Gangtok generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 15°C (59°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
21°C (70°F)
19°C (66°F)
Min temperature
16°C (61°F)
15°C (59°F)
11°C (52°F)
Monthly rainfall
902 mm (36 in)
518 mm (20 in)
224 mm (8.8 in)
Monthly rainy days
16 days
11 days
3 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Gangtok →

Pelling

In September Pelling generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
21°C (70°F)
19°C (66°F)
Min temperature
15°C (59°F)
14°C (57°F)
10°C (50°F)
Monthly sun hours
103 hours
98 hours
168 hours
Monthly rainfall
649 mm (26 in)
500 mm (20 in)
260 mm (10 in)
Monthly rainy days
16 days
11 days
3 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Pelling →

Pemayangtse

In September Pemayangtse generally has pleasant temperatures with maximum daytime temperatures around 21°C (70°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
22°C (72°F)
21°C (70°F)
19°C (66°F)
Min temperature
15°C (59°F)
14°C (57°F)
10°C (50°F)
Monthly sun hours
103 hours
98 hours
168 hours
Monthly rainfall
652 mm (26 in)
505 mm (20 in)
266 mm (10 in)
Monthly rainy days
16 days
11 days
3 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Pemayangtse →

Lachung

In September Lachung generally has low temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 5°C (41°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
13°C (55°F)
12°C (54°F)
7°C (45°F)
Min temperature
6°C (43°F)
5°C (41°F)
-1°C (30°F)
Monthly rainfall
417 mm (16 in)
252 mm (9.9 in)
153 mm (6 in)
Monthly rainy days
22 days
15 days
5 days
Weather conditions
less favorable
less favorable
less favorable
Climate in Lachung →

Namchi

In September Namchi generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are less favorable that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
25°C (77°F)
24°C (75°F)
Min temperature
19°C (66°F)
18°C (64°F)
14°C (57°F)
Monthly sun hours
103 hours
98 hours
168 hours
Monthly rainfall
710 mm (28 in)
486 mm (19 in)
215 mm (8.5 in)
Monthly rainy days
15 days
11 days
3 days
Weather conditions
less favorable
less favorable
mixed
Climate in Namchi →

Is your destination not in the list? Have a look at all destinations in Sikkim, in India.

Popular cities in September

Day & night temperatures, rainfall and average weather in Sikkim in September.

City Weather Day temp Night temp Rainfall
Gangtok 21°C (70°F) 15°C (59°F) 518 mm (20 in)
Pelling 21°C (70°F) 14°C (57°F) 500 mm (20 in)
Pemayangtse 21°C (70°F) 14°C (57°F) 505 mm (20 in)
Lachung 12°C (54°F) 5°C (41°F) 252 mm (9.9 in)
Namchi 25°C (77°F) 18°C (64°F) 486 mm (19 in)
Rinchingpong 23°C (73°F) 16°C (61°F) 512 mm (20 in)

Sikkim weather in September: frequently asked questions

What is the weather like in Sikkim, India in September?

Expect less favorable weather across Sikkim, India in September. The popular destination of Gangtok averages 21°C (70°F) by day and 15°C (59°F) at night during this month.

What is the average temperature in Sikkim, India in September?

In Gangtok, the average daytime high in September is 21°C (70°F), while nighttime temperatures drop to around 15°C (59°F).

Does Sikkim, India get a lot of rain in September?

Expect plenty of rainfall. Gangtok records an average of 518 mm (20 in) in September, putting it among the wetter months for Sikkim, India.

Is September a Good Time to Visit Sikkim, India?

In our view, September might not be the best time to travel to Sikkim, India with often less favorable weather in Gangtok.

Generally speaking, the best visiting conditions can be found in offering mostly less favorable weather in Gangtok.

Interested in more climate information?

We have much more information about the climate in Sikkim.

Weather and climate has detailed information for every country in the world. Are you going to India? Get detailed historical weather averages for many cities in India.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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