September weather forecastGasa, Bhutan
September
Weather in September
September ushers in reduced rainfall—a mere 103mm (4.06") over 20.5 days on average—marking the end of the monsoon season. However, the humidity continues to hover at 80%, reminiscent of the recent rains. This month is a cusp between summer and autumn, where temperatures are still reminiscent of the summer heat but gradually cooling. Days remain reasonably long, providing ample time for outdoor pursuits. The skies clear up as the month progresses, offering unobstructed panoramas of Gasa.Temperature
September's commencement in Gasa is accompanied by an average high-temperature of a still refreshing 15.9°C (60.6°F), diverging marginally from August's 17.8°C (64°F). Throughout September, an average nighttime temperature of 10°C (50°F) is experienced.Humidity
In Gasa, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 20.5 days. Throughout September, 103mm (4.06") of precipitation is accumulated. In Gasa, during the entire year, the rain falls for 186.7 days and collects up to 863mm (33.98") of precipitation.Snowfall
In Gasa, Bhutan, snow does not fall in June through October.Daylight
In Gasa, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 05:39 and sunset at 18:21. On the last day of September, sunrise is at 05:52 and sunset at 17:47 +06.
Sunshine
In September, the average sunshine is 9.9h.UV index
The months with the highest UV index in Gasa, Bhutan, are May through September, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gasa, Bhutan
- Average high temperature in September: 15.9°C
The warmest month (with the highest average high temperature) is August (17.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (11.9°C).
The coldest month (with the lowest average low temperature) is January (-2.6°C).
Average pressure in September
Gasa, Bhutan
- Average pressure in September: 1011.6mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is July (1006.8mbar).
Average wind speed in September
Gasa, Bhutan
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is April (8.6km/h).
The calmest month (with the lowest average wind speed) is October (6.4km/h).
Average humidity in September
Gasa, Bhutan
- Average humidity in September: 80%
The month with the highest relative humidity is July (83%).
The months with the lowest relative humidity are January and February (57%).
Average rainfall in September
Gasa, Bhutan
- Average rainfall in September: 103mm
The wettest month (with the highest rainfall) is July (196mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in September
Gasa, Bhutan
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is July (27.3 days).
The month with the least rainy days is January (4.2 days).
Average snowfall in September
Gasa, Bhutan
- Average snowfall in September: 0mm
The month with the highest snowfall is February (146mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Gasa, Bhutan
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (8.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gasa, Bhutan
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 54min
The month with the most sunshine is April (Average sunshine: 11h and 12min).
The months with the least sunshine are January, February and November (Average sunshine: 7h and 24min).
Average sunshine days in September
Gasa, Bhutan
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is January (22.9 days).
The months with the least sunshine days are May and June (2.8 days).
Average UV index in September
Gasa, Bhutan
- Average UV index in September: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Gasa, Bhutan
- Average cloud cover in September: 36
The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is January (Cloud cover 14).
Average visibility in September
Gasa, Bhutan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).





