September weather forecast
Khulna, India

September, the last month of the rainy (monsoon) season in Khulna, is another tropical month, with an average temperature varying between 25.7°C (78.3°F) and 31.9°C (89.4°F).

Temperature

August's transformation into September witnesses an average high-temperature of a still hot 31.9°C (89.4°F), noting a minor change from the preceding month. During September, the average low-temperature in Khulna is a moderately hot 25.7°C (78.3°F).

Heat index

In September, the heat index is computed to be a burning hot 45°C (113°F). Stay alert: Heat cramps and heat exhaustion are expected. Heatstroke is a likely outcome of ongoing activity.
Consider that heat index readings are for situations in the shade and light wind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

September is the most humid month in Khulna, with an average relative humidity of 82%.

Rainfall

In Khulna, in September, it is raining for 22.1 days, with typically 59mm (2.32") of accumulated precipitation. Throughout the year, there are 130.7 rainfall days, and 422mm (16.61") of precipitation is accumulated.

Daylight

In Khulna, the average length of the day in September is 12h and 17min.
On the first day of the month, sunrise is at 5:17 am and sunset at 5:51 pm. On the last day of September, sunrise is at 5:25 am and sunset at 5:22 pm IST.

Sunshine

In September, the average sunshine in Khulna is 7.7h.

UV index

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.