Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's average high-temperature stands at a still hot 32.3°C (90.1°F), showing little deviation from August's 32.5°C (90.5°F). During September, the nighttime temperature averages of 25.8°C (78.4°F).Heat index
The heat index value for September is appraised at a life-threatening hot 45°C (113°F). Be alert: Heat exhaustion along with heat cramps are probable. Heatstroke is a threat with sustained physical activity.For clarity, heat index numbers account for light winds and areas under shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular significance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In Birtara, the average relative humidity in September is 80%.Rainfall
In Birtara, in September, it is raining for 15.9 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, there are 119.3 rainfall days, and 378mm (14.88") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 17min.On the first day of the month, sunrise is at 5:40 am and sunset at 6:16 pm. On the last day of September, sunrise is at 5:50 am and sunset at 5:47 pm +06.
Sunshine
In September, the average sunshine is 8.1h.UV index
March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Birtara have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Birtara, Bangladesh
- Average high temperature in September: 32.3°C
The warmest month (with the highest average high temperature) is April (36.3°C).
The month with the lowest average high temperature is January (26.1°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is June (27.2°C).
The coldest month (with the lowest average low temperature) is January (15.2°C).
Average pressure in September
Birtara, Bangladesh
- Average pressure in September: 1004.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The month with the lowest atmospheric pressure is July (1000.1mbar).
Average wind speed in September
Birtara, Bangladesh
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is July (14.3km/h).
The calmest month (with the lowest average wind speed) is November (6.9km/h).
Average humidity in September
Birtara, Bangladesh
- Average humidity in September: 80%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is February (46%).
Average rainfall in September
Birtara, Bangladesh
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in September
Birtara, Bangladesh
- Average rainfall days in September: 15.9 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (1.2 days).
Average daylight in September /
Average sunshine in September
Birtara, Bangladesh
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is April (Average sunshine: 10h and 54min).
The month with the least sunshine is November (Average sunshine: 7h and 18min).
Average sunshine days in September
Birtara, Bangladesh
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is January (29.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Birtara, Bangladesh
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, October, November and December (UV index 6).
Average cloud cover in September
Birtara, Bangladesh
- Average cloud cover in September: 45
The month with the most cloud cover is July (Cloud cover 56).
The month with the least cloud cover is January (Cloud cover 6).
Average visibility in September
Birtara, Bangladesh
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
