September weather forecast and climate
Rangamati, Bangladesh

Weather in September

September, the first month of the autumn, in Rangamati, is still a tropical month, with average temperature varying between 32.5°C (90.5°F) and 25.5°C (77.9°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 32.5°C (90.5°F). In Rangamati, the average low-temperature is 25.5°C (77.9°F).

Heat index

In September, the average heat index is evaluated at a burning hot 46.2°C (115.2°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged 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 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index 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. Excessive warmth is eliminated from the body by evaporation of sweat. 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

September is the most humid month, with an average relative humidity of 80%.

Rainfall

In September, in Rangamati, the rain falls for 24.6 days. Throughout September, 195mm (7.68") of precipitation is accumulated. Throughout the year, there are 163.1 rainfall days, and 1141mm (44.92") of precipitation is accumulated.

Daylight

In Rangamati, the average length of the day is 12.3h.

Sunshine

In September, the average sunshine is 7.8h.

UV index

In Rangamati, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Rangamati?

In Rangamati, in September, the average high-temperature is 32.5°C (90.5°F), and the average low-temperature is 25.5°C (77.9°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), that combines relative humidity and air temperature, in September is estimated at 46.2°C (115.2°F).

What is the most humid month in Rangamati?

September is the most humid month in Rangamati, Bangladesh, with an average relative humidity of 80%.

What is the average humidity in September in Rangamati?

In September, the average relative humidity is 80%.

How much does it rain in Rangamati in September?

In Rangamati, in September, during 24.6 rainfall days, 195mm (7.68") of precipitation is typically accumulated.

What is the average length of the day in September in Rangamati?

In Rangamati, Bangladesh, the average length of the day in September is 12.3h.

How long on average sun shines in September in Rangamati?

In September, the average sunshine in Rangamati, Bangladesh, is 7.8h.

How high is the UV index in September in Rangamati?

In Rangamati, Bangladesh, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in September
Rangamati, Bangladesh

Average temperature in September - Rangamati, Bangladesh
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is April (37.4°C).
The month with the lowest average high temperature is January (25.8°C).

  • Average low temperature in September: 25.5°C

The month with the highest average low temperature is June (27.5°C).
The coldest month (with the lowest average low temperature) is January (13.9°C).

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Average pressure in September
Rangamati, Bangladesh

Average pressure in September - Rangamati, Bangladesh
  • Average pressure in September: 1004.3mbar

The month with the highest atmospheric pressure is January (1015mbar).
The month with the lowest atmospheric pressure is June (999.4mbar).

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Average wind speed in September
Rangamati, Bangladesh

Average wind speed in September - Rangamati, Bangladesh
  • Average wind speed in September: 7.3km/h

The windiest month (with the highest average wind speed) is July (10.2km/h).
The calmest month (with the lowest average wind speed) is October (5.9km/h).

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Average humidity in September
Rangamati, Bangladesh

Average humidity in September - Rangamati, Bangladesh
  • Average humidity in September: 80%

The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (35%).

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Average rainfall in September
Rangamati, Bangladesh

Average rainfall in September - Rangamati, Bangladesh
  • Average rainfall in September: 195mm

The wettest month (with the highest rainfall) is July (264mm).
The driest month (with the least rainfall) is November (2mm).

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Average rainfall days in September
Rangamati, Bangladesh

Average rainfall days in September - Rangamati, Bangladesh
  • Average rainfall days in September: 24.6 days

The month with the highest number of rainy days is July (28.4 days).
The month with the least rainy days is December (1.1 days).

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Average daylight in September /
Average sunshine in September
Rangamati, Bangladesh

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

The month with the longest days is June (Average daylight: 13.5h).
The month with the shortest days is December (Average daylight: 10.8h).

  • Average sunshine in September: 7.8h

The month with the most sunshine is May (Average sunshine: 11h).
Months with the least sunshine are January and December (Average sunshine: 7.5).

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Average sunshine days in September
Rangamati, Bangladesh

Average sunshine days in September - Rangamati, Bangladesh
  • Average sunshine days in September: 4 days

The month with the most sunshine days is December (29.5 days).
The month with the least sunshine days is July (1.8 days).

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Average UV index in September
Rangamati, Bangladesh

Average UV index in September - Rangamati, Bangladesh
  • Average UV index in September: 7

The month with the highest UV index is May (UV index 8).
Months with the lowest UV index are January, February, October, November and December (UV index 6).

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Average cloud cover in September
Rangamati, Bangladesh

Average cloud cover in September - Rangamati, Bangladesh
  • Average cloud cover in September: 43

The month with the most cloud cover is July (Cloud cover 55).
The month with the least cloud cover is January (Cloud cover 8).

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Average visibility in September
Rangamati, Bangladesh

Average visibility in September - Rangamati, Bangladesh
  • Average visibility in September: 8km

Months with the highest visibility are January, February, March, April, May, November and December (10km).
The month with the lowest visibility is September (8km).

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