September weather forecast
Brahmanbaria, Bangladesh

September marks the transition from monsoon to post-monsoon in Brahmanbaria. Average temperatures begin to moderate. Significant cloud cover continues to prevail, providing relief from the post-summer heat. Rainfall decreases markedly, signaling the end of the monsoon. September acts as a bridge between the two seasons, preparing the city for the onset of autumn.

Temperature

A minor adjustment in Brahmanbaria's average high-temperature is noted with the start of September, touching a still tropical 32.5°C (90.5°F) from August's 32.8°C (91°F). Brahmanbaria's temperature tends to fall to an average low of 25.6°C (78.1°F) during the nights of September.

Heat index

Throughout September, the heat index is calculated to be a burning hot 46°C (114.8°F). Take caution: Heat exhaustion and heat cramps are probable. Heatstroke may be imminent with ongoing effort.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the 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. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in September is 79%.

Rainfall

In Brahmanbaria, in September, it is raining for 24.7 days, with typically 170mm (6.69") of accumulated precipitation. In Brahmanbaria, Bangladesh, during the entire year, the rain falls for 163.2 days and collects up to 1056mm (41.57") of precipitation.

Daylight

In Brahmanbaria, the average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 5:37 am and sunset at 6:13 pm. On the last day of September, in Brahmanbaria, sunrise is at 5:47 am and sunset at 5:43 pm +06.

Sunshine

The average sunshine in September is 8.4h.

UV index

In Brahmanbaria, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.