September weather forecast
Alaipur, Bangladesh

September, the first month of the autumn in Alaipur, is also a hot month, with an average temperature varying between 31.9°C (89.4°F) and 25.5°C (77.9°F).

Temperature

Alaipur's shift from August to September is accompanied by an average high-temperature of a still hot 31.9°C (89.4°F), a slight deviation from 32.3°C (90.1°F). Alaipur's September nights cool down to an average low-temperature of 25.5°C (77.9°F).

Heat index

For most parts of September, the heat index is calculated to be a blazing hot 45°C (113°F). Stay wary: Heat exhaustion and heat cramps are possible. Heatstroke can ensue from extended effort.
Remember that heat index calculations are made for conditions in the shade with light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. 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 are essentially critical for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in September is 82%.

Rainfall

In Alaipur, Bangladesh, during September, the rain falls for 25.9 days and regularly aggregates up to 132mm (5.2") of precipitation. Throughout the year, there are 174.9 rainfall days, and 1035mm (40.75") of precipitation is accumulated.

Daylight

In Alaipur, the average length of the day in September is 12h and 17min.
On the first day of September, sunrise is at 5:44 am and sunset at 6:19 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 5:50 pm +06.

Sunshine

In Alaipur, the average sunshine in September is 8.3h.

UV index

The average daily maximum UV index in September in Alaipur is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.