September weather forecast
Trombay, India

The last month of the rainy (monsoon) season, September, is also a moderately hot month in Trombay, India, with an average temperature varying between 25.4°C (77.7°F) and 29.2°C (84.6°F).

Temperature

Trombay's entry into September measures an average high-temperature of a still moderately hot 29.2°C (84.6°F), closely parallel to the preceding month. In September, Trombay experiences a marginal drop in temperature, with averages of 25.4°C (77.7°F) at night.

Heat index

For most parts of September, the heat index is appraised at a very hot 36°C (96.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Trombay, the average relative humidity in September is 82%.

Rainfall

In Trombay, in September, it is raining for 22.3 days, with typically 176mm (6.93") of accumulated precipitation. Throughout the year, there are 133.4 rainfall days, and 1524mm (60") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 6:23 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:27 pm IST.

Sunshine

In September, the average sunshine is 7.6h.

UV index

In Trombay, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 transforms into these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.