Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Gangtok, India, observes an average high-temperature of a still agreeable 20.2°C (68.4°F) in September, barely different from 20.9°C (69.6°F) in August. During September, the nighttime temperature averages of 13.9°C (57°F).Humidity
In September, the average relative humidity in Gangtok is 76%.Rainfall
In Gangtok, in September, it is raining for 25.5 days, with typically 137mm (5.39") of accumulated precipitation. Throughout the year, there are 202.1 rainfall days, and 1069mm (42.09") of precipitation is accumulated.Snowfall
In Gangtok, snow does not fall in January, February, April through December.Daylight
In September, the average length of the day in Gangtok is 12h and 19min.On the first day of September in Gangtok, sunrise is at 5:14 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 5:23 pm IST.
Sunshine
In Gangtok, the average sunshine in September is 9.2h.UV index
July through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Gangtok in September?
What is the average humidity in September in Gangtok?
How many days does it rain in September in Gangtok?
When it does not snow in Gangtok?
What is the average length of the day in September in Gangtok?
What time are sunrise and sunset in September in Gangtok?
How long on average sun shines in September in Gangtok?
What are the months with the highest UV index in Gangtok?
How high is the UV index in September in Gangtok?
Average temperature in September
Gangtok, India
- Average high temperature in September: 20.2°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 13.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Gangtok, India
- Average pressure in September: 1010.8mbar
The month with the highest atmospheric pressure is January (1017.1mbar).
The month with the lowest atmospheric pressure is July (1006.1mbar).
Average wind speed in September
Gangtok, India
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is March (8.9km/h).
The calmest months (with the lowest average wind speed) are July and August (6.7km/h).
Average humidity in September
Gangtok, India
- Average humidity in September: 76%
The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are January, February and March (50%).
Average rainfall in September
Gangtok, India
- Average rainfall in September: 137mm
The wettest month (with the highest rainfall) is July (273mm).
The driest month (with the least rainfall) is December (9mm).
Average rainfall days in September
Gangtok, India
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is July (30.7 days).
The months with the least rainy days are January and December (4.8 days).
Average snowfall days in September
Gangtok, India
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (0.1 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Gangtok, India
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 24min).
Average sunshine days in September
Gangtok, India
- Average sunshine days in September: 1.6 days
The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is July (0.1 days).
Average UV index in September
Gangtok, India
- Average UV index in September: 5
The months with the highest UV index are July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Gangtok, India
- Average cloud cover in September: 27
The month with the most cloud cover is July (Cloud cover 42).
The months with the least cloud cover are January and December (Cloud cover 10).
Average visibility in September
Gangtok, India
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
