September weather forecast
Dewangiri, Bhutan

September, the first month of the autumn in Dewangiri, is still a tropical month, with an average temperature ranging between max 31.5°C (88.7°F) and min 23.6°C (74.5°F).

Temperature

The commencement of September brings an average high-temperature of a still hot 31.5°C (88.7°F), marking an inconsequential divergence from August. September in Dewangiri generally records an average low-temperature of 23.6°C (74.5°F).

Heat index

During September, the heat index is evaluated at a blistering 44°C (111.2°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In September, the average relative humidity is 83%.

Rainfall

In Dewangiri, Bhutan, in September, during 26.5 rainfall days, 223mm (8.78") of precipitation is typically accumulated. In Dewangiri, during the entire year, the rain falls for 197.8 days and collects up to 1663mm (65.47") of precipitation.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September in Dewangiri, sunrise is at 05:33 and sunset at 18:14. On the last day of the month, sunrise is at 05:46 and sunset at 17:41 +06.

Sunshine

In Dewangiri, the average sunshine in September is 8.5h.

UV index

April, June and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The UV index of 7 during September leads to these advisories:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.