September weather forecast
Rangamati, Bangladesh

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

Temperature

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

Heat index

The average heat index in September is evaluated at a life-threatening hot 46°C (114.8°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 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, metabolic differences, differences in body mass, height, and shape), and activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

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

Rainfall

In Rangamati, during 24.6 rainfall days, 195mm (7.68") of precipitation is typically accumulated. In Rangamati, during the entire year, the rain falls for 163.1 days and collects up to 1141mm (44.92") of precipitation.

Daylight

The average length of the day in September is 12h and 17min.
On the first day of September in Rangamati, sunrise is at 5:33 am and sunset at 6:09 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 5:40 pm +06.

Sunshine

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

UV index

The average daily maximum UV index in September in Rangamati is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 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 the 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.