Dhaka
Bangladesh
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Dhaka, Bangladesh

The beautiful Mughal architecture of the fort of Lalbagh standing in Dhaka, Bangladesh
The beautiful Mughal architecture of the fort of Lalbagh standing in Dhaka, Bangladesh
The first month of the autumn, September, is still a hot month in Dhaka, Bangladesh, with average temperature varying between 25.9°C (78.6°F) and 31.6°C (88.9°F).

Temperature

In September, the average high-temperature remains equal as in August - a still tropical 31.6°C (88.9°F). The average low-temperature, in Dhaka, is 25.9°C (78.6°F).

Heat index

In September, the average heat index is evaluated at a very hot 39.6°C (103.3°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, differences in body mass, height, and shape, clothing), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in September is 71%.

Rainfall

In Dhaka, during September, the rain falls for 12 days and regularly aggregates up to 300.4mm (11.8") of precipitation. Throughout the year, in Dhaka, there are 86 rainfall days, and 2148mm (84.6") of precipitation is accumulated.

Daylight

The average length of the day in September is 12.3h.

Sunshine

The average sunshine is 3h.

UV index

The average daily maximum UV index in September is 11. A UV Index of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 11 transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in September in Dhaka?

The average high-temperature, in September, in Dhaka, is 31.6°C (88.9°F), while the average low-temperature is 25.9°C (78.6°F). The average heat index (a.k.a. 'feels like', 'real feel'), that represents influence of the relative humidity to air temperaure, in September is calculated to 39.6°C (103.3°F).

What is the average humidity in September in Dhaka?

The average relative humidity in September in Dhaka, Bangladesh, is 71%.

How many days does it rain in September in Dhaka?

In September, in Dhaka, the rain falls for 12 days. Throughout September, 300.4mm (11.8") of precipitation is accumulated.

How many hours of daylight does Dhaka have in September?

The average length of the day in September in Dhaka, Bangladesh, is 12.3h.

How long on average sun shines in September in Dhaka?

The average sunshine in September in Dhaka is 3h.

What is the UV index intensity in September in Dhaka?

The average daily maximum UV index in September in Dhaka, Bangladesh, is 11. A UV Index estimate of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Dhaka, Bangladesh
  • Average high temperature in September: 31.6°C

The warmest month (with the highest average high temperature) is April (33.7°C).
The month with the lowest average high temperature is January (25.4°C).

  • Average low temperature in September: 25.9°C

The month with the highest average low temperature is August (26.3°C).
The coldest month (with the lowest average low temperature) is January (12.7°C).

Average humidity in September - Dhaka, Bangladesh
  • Average humidity in September: 71%

The month with the highest relative humidity is August (74%).
The month with the lowest relative humidity is February (37%).

Average rainfall in September - Dhaka, Bangladesh
  • Average rainfall in September: 300.4mm

The wettest month (with the highest rainfall) is July (373.1mm).
The driest month (with the lowest rainfall) is January (7.7mm).

Average rainfall days in September - Dhaka, Bangladesh
  • Average rainfall days in September: 12 days

Months with the highest number of rainy days are June and August (16 days).
The month with the lowest number of rainy days is December (0 days).

Average daylight in September / Average sunshine in September - Dhaka, Bangladesh
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.6h).
The month with shortest days is December (Average daylight: 10.7h).

  • Average sunshine in September: 3h

Months with most sunshine are January and December (Average sunshine: 9h).
Months with least sunshine are July and August (Average sunshine: 2).

Average UV index in September - Dhaka, Bangladesh
  • Average UV index in September: 11

Months with the highest UV index are April, May, June, July and August (UV index 12).
Months with the lowest UV index are January and December (UV index 6).