September weather forecast
Vasai, India

The last month of the rainy (monsoon) season, September, is also a moderately hot month in Vasai, India, with temperature in the range of an average high of 29.2°C (84.6°F) and an average low of 25.2°C (77.4°F).

Temperature

Vasai in September witnesses an average high-temperature of a still moderately hot 29.2°C (84.6°F), indicating a slight variation from August's 28.3°C (82.9°F). During the nights of September, Vasai records an average temperature of 25.2°C (77.4°F), a minor drop from daytime peaks.

Heat index

For most parts of September, the heat index is calculated to be a sweltering 36°C (96.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant 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.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

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

Rainfall

In Vasai, in September, it is raining for 22.5 days, with typically 178mm (7.01") of accumulated precipitation. Throughout the year, there are 131.6 rainfall days, and 1427mm (56.18") of precipitation is accumulated.

Daylight

In Vasai, the average length of the day in September is 12h and 15min.
On the first day of September in Vasai, sunrise is at 6:23 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 6:27 pm IST.

Sunshine

In Vasai, India, the average sunshine in September is 7.7h.

UV index

In September, the average daily maximum UV index in Vasai is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.