September weather forecastLao, Bhutan
September
Weather in September
The first month of the autumn, September, is still a cool month in Lao, Bhutan, with an average temperature ranging between min 3°C (37.4°F) and max 10.2°C (50.4°F).Temperature
Lao marks the onset of September with an average high-temperature of a still cool 10.2°C (50.4°F), a subtle shift from August's 11.6°C (52.9°F). Lao experiences an average temperature drop to a cold 3°C (37.4°F) during September nights.Humidity
The average relative humidity in September is 70%.Rainfall
In Lao, during September, the rain falls for 21.7 days and regularly aggregates up to 58mm (2.28") of precipitation. Throughout the year, in Lao, there are 132.5 rainfall days, and 418mm (16.46") of precipitation is accumulated.Snowfall
January through December are months with snowfall. In Lao, during September, snow falls for 10.3 days and regularly aggregates up to 78mm (3.07") of snow. In Lao, during the entire year, snow falls for 93.6 days and aggregates up to 707mm (27.83") of snow.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 05:32 and sunset at 18:14. On the last day of September, sunrise is at 05:46 and sunset at 17:41 +06.
Sunshine
In Lao, the average sunshine in September is 9.7h.UV index
January through June, September through December, with an average maximum UV index of 2, are months with the lowest UV index in Lao, Bhutan. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 2 during September, leads to the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lao, Bhutan
- Average high temperature in September: 10.2°C
The warmest month (with the highest average high temperature) is July (11.8°C).
The month with the lowest average high temperature is January (-3.2°C).
- Average low temperature in September: 3°C
The month with the highest average low temperature is July (5.2°C).
The coldest month (with the lowest average low temperature) is January (-14.2°C).
Average pressure in September
Lao, Bhutan
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is November (1017.5mbar).
The months with the lowest atmospheric pressure are June and July (1008.5mbar).
Average wind speed in September
Lao, Bhutan
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (14.2km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in September
Lao, Bhutan
- Average humidity in September: 70%
The month with the highest relative humidity is July (72%).
The month with the lowest relative humidity is December (39%).
Average rainfall in September
Lao, Bhutan
- Average rainfall in September: 58mm
The wettest month (with the highest rainfall) is July (112mm).
The driest months (with the least rainfall) are January and November (2mm).
Average rainfall days in September
Lao, Bhutan
- Average rainfall days in September: 21.7 days
The month with the highest number of rainy days is July (28.8 days).
The month with the least rainy days is December (1.2 days).
Average snowfall in September
Lao, Bhutan
- Average snowfall in September: 78mm
The month with the highest snowfall is May (184mm).
The month with the least snowfall is January (10mm).
Average snowfall days in September
Lao, Bhutan
- Average snowfall days in September: 10.3 days
The month with the highest number of snowfall days is May (15.8 days).
The month with the least snowfall days is July (2.8 days).
Average daylight in September /
Average sunshine in September
Lao, 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 42min
The month with the most sunshine is April (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 36min).
Average sunshine days in September
Lao, Bhutan
- Average sunshine days in September: 2.6 days
The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is July (0.3 days).
Average UV index in September
Lao, Bhutan
- Average UV index in September: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are January, February, March, April, May, June, September, October, November and December (UV index 2).
Average cloud cover in September
Lao, Bhutan
- Average cloud cover in September: 32
The month with the most cloud cover is July (Cloud cover 40).
The month with the least cloud cover is December (Cloud cover 4).
Average visibility in September
Lao, Bhutan
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, June, October, November and December (10km).
The months with the lowest visibility are April, May, July, August and September (9km).





