September weather forecastMerapani, India

September

Weather in September

The last month of the rainy (monsoon) season, September, is also a hot month in Merapani, India, with an average temperature varying between 23.5°C (74.3°F) and 32.2°C (90°F).

Temperature

With the transition into September, Merapani notes an average high-temperature of a still tropical 32.2°C (90°F), closely resembling August. In Merapani, an average nighttime temperature of 23.5°C (74.3°F) is expected during September.

Heat index

During September, the heat index is computed to be a blazing hot 46°C (114.8°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In September, the average relative humidity is 83%.

Rainfall

In Merapani, in September, it is raining for 25.1 days, with typically 214mm (8.43") of accumulated precipitation. Throughout the year, there are 208.8 rainfall days, and 1467mm (57.76") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September, sunrise is at 4:53 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 5:01 pm IST.

Sunshine

The average sunshine in September is 7.6h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

An average high-temperature, in September, in Merapani, is 32.2°C (90°F) and the average low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is computed to be 46°C (114.8°F).

In September, the average relative humidity is 83%.

In September, the rain falls for 25.1 days. Throughout September, 214mm (8.43") of precipitation is accumulated.

In September, the average day length is 12h and 19min.

On the first day of September, sunrise is at 4:53 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 5:01 pm IST.

The average sunshine duration in September is 7.6h.

April through September, with an average maximum UV index of 7, are months with the highest UV index.

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Merapani, India

  • Average high temperature in September: 32.2°C

The warmest month (with the highest average high temperature) is May (33.8°C).
The month with the lowest average high temperature is December (23.5°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is July (24.8°C).
The coldest month (with the lowest average low temperature) is January (10.7°C).

Average pressure in September
Merapani, India

  • Average pressure in September: 1006.6mbar

The month with the highest atmospheric pressure is January (1015.9mbar).
The month with the lowest atmospheric pressure is July (1002.1mbar).

Average wind speed in September
Merapani, India

  • Average wind speed in September: 4.2km/h

The windiest month (with the highest average wind speed) is July (5.2km/h).
The calmest month (with the lowest average wind speed) is December (3.6km/h).

Average humidity in September
Merapani, India

  • Average humidity in September: 83%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is March (59%).

Average rainfall in September
Merapani, India

  • Average rainfall in September: 214mm

The wettest month (with the highest rainfall) is July (338mm).
The driest month (with the least rainfall) is December (16mm).

Average rainfall days in September
Merapani, India

  • Average rainfall days in September: 25.1 days

The month with the highest number of rainy days is July (28.4 days).
The month with the least rainy days is December (5.3 days).

Average daylight in September /
Average sunshine in September
Merapani, India

  • Average daylight in September: 12h and 18min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in September: 7h and 36min

The months with the most sunshine are February, March and June (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).

Average sunshine days in September
Merapani, India

  • Average sunshine days in September: 3.1 days

The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is August (1.3 days).

Average UV index in September
Merapani, India

  • Average UV index in September: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, November and December (UV index 5).

Average cloud cover in September
Merapani, India

  • Average cloud cover in September: 48

The month with the most cloud cover is July (Cloud cover 58).
The months with the least cloud cover are January, February and March (Cloud cover 27).

Average visibility in September
Merapani, India

  • Average visibility in September: 8km

The month with the highest visibility is March (10km).
The months with the lowest visibility are July, October and November (7km).