September weather forecastRadi, Bhutan

September

Weather in September

The first month of the autumn, September, is still a tropical month in Radi, Bhutan, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 31.6°C (88.9°F).

Temperature

September brings an average high-temperature of a still hot 31.6°C (88.9°F), showing a slight difference from August's 32.5°C (90.5°F). An average low-temperature of 23.8°C (74.8°F) is recorded in the month of September.

Heat index

In September, the heat index is computed to be a blistering 44°C (111.2°F). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In September, the average relative humidity is 83%.

Rainfall

In Radi, in September, it is raining for 26.8 days, with typically 247mm (9.72") of accumulated precipitation. In Radi, during the entire year, the rain falls for 198.1 days and collects up to 1687mm (66.42") of precipitation.

Daylight

The average length of the day in September in Radi is 12h and 19min.
On the first day of the month, sunrise is at 05:32 and sunset at 18:13. On the last day of September, in Radi, sunrise is at 05:45 and sunset at 17:40 +06.

Sunshine

The average sunshine in September in Radi is 8.2h.

UV index

April, June and September, with an average maximum UV index of 7, are months with the highest UV index in Radi, Bhutan. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

Radi in September has an average high-temperature of 31.6°C (88.9°F) and an average low-temperature of 23.8°C (74.8°F). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 44°C (111.2°F).

In Radi, the average relative humidity in September is 83%.

In September, the rain falls for 26.8 days. Throughout September, 247mm (9.72") of precipitation is accumulated.

The average day length in September in Radi, Bhutan, is 12h and 19min.

In September, on the first day of the month, sunrise is at 05:32 and sunset at 18:13. On the last day of the month, sunrise is at 05:45 and sunset at 17:40 +06.

In September, the average sunshine duration in Radi, Bhutan, is 8.2h.

The months with the highest UV index are April, June and September, with an average maximum UV index of 7.

In Radi, Bhutan, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Radi, Bhutan

  • Average high temperature in September: 31.6°C

The warmest month (with the highest average high temperature) is May (33.8°C).
The month with the lowest average high temperature is January (23.8°C).

  • Average low temperature in September: 23.8°C

The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (12.2°C).

Average pressure in September
Radi, Bhutan

  • Average pressure in September: 1007.3mbar

The month with the highest atmospheric pressure is January (1016.3mbar).
The month with the lowest atmospheric pressure is July (1002.9mbar).

Average wind speed in September
Radi, Bhutan

  • Average wind speed in September: 3.9km/h

The windiest month (with the highest average wind speed) is March (5.4km/h).
The calmest month (with the lowest average wind speed) is September (3.9km/h).

Average humidity in September
Radi, Bhutan

  • Average humidity in September: 83%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (47%).

Average rainfall in September
Radi, Bhutan

  • Average rainfall in September: 247mm

The wettest month (with the highest rainfall) is July (426mm).
The driest month (with the least rainfall) is January (6mm).

Average rainfall days in September
Radi, Bhutan

  • Average rainfall days in September: 26.8 days

The month with the highest number of rainy days is August (30.2 days).
The months with the least rainy days are January and February (3.8 days).

Average daylight in September /
Average sunshine in September
Radi, Bhutan

  • Average daylight in September: 12h and 18min

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: 8h and 12min

The month with the most sunshine is May (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).

Average sunshine days in September
Radi, Bhutan

  • Average sunshine days in September: 2.3 days

The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is July (0.7 days).

Average UV index in September
Radi, Bhutan

  • Average UV index in September: 7

The months with the highest UV index are April, June and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 5).

Average cloud cover in September
Radi, Bhutan

  • Average cloud cover in September: 42

The month with the most cloud cover is July (Cloud cover 52).
The month with the least cloud cover is February (Cloud cover 13).

Average visibility in September
Radi, Bhutan

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March and April (10km).
The months with the lowest visibility are July, August, September and October (8km).