September weather forecast
Vapi, India

September, the last month of the rainy (monsoon) season in Vapi, is a tropical month, with temperature in the range of an average low of 24.9°C (76.8°F) and an average high of 30.2°C (86.4°F).

Temperature

September's arrival registers an average high-temperature of a tropical 30.2°C (86.4°F), closely aligning with the temperature of the previous month. September brings an average low-temperature of 24.9°C (76.8°F) to Vapi.

Heat index

During September, the heat index is evaluated at a very hot 39°C (102.2°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for 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.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in September is 81%.

Rainfall

In Vapi, India, in September, it is raining for 19.8 days, with typically 147mm (5.79") of accumulated precipitation. In Vapi, during the entire year, the rain falls for 114.8 days and collects up to 995mm (39.17") of precipitation.

Daylight

In Vapi, India, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 6:22 am and sunset at 6:54 pm. On the last day of September, sunrise is at 6:29 am and sunset at 6:27 pm IST.

Sunshine

In September, the average sunshine in Vapi is 7.9h.

UV index

In Vapi, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, an average UV index of 7 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.