September weather forecast and climate
Sulur, India

The last month of the rainy (monsoon) season, September, is also a hot month in Sulur, India, with average temperature varying between 22.5°C (72.5°F) and 32.5°C (90.5°F).

Temperature

In September, the average high-temperature is relatively the same as in August - a still tropical 32.5°C (90.5°F). In September, the average low-temperature is 22.5°C (72.5°F).

Heat index

In September, the average heat index is evaluated at a scorching 40.7°C (105.3°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In September, the average relative humidity is 67%.

Rainfall

In Sulur, India, it is raining for 11.5 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 131.5 rainfall days, and 458mm (18.03") of precipitation is accumulated.

Daylight

The average length of the day is 12.2h.

Sunshine

In September, the average sunshine in Sulur, India, is 9.1h.

UV index

In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in September in Sulur?

In September, in Sulur, the average high-temperature is 32.5°C (90.5°F), and the average low-temperature is 22.5°C (72.5°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines relative humidity and air temperature, is evaluated at 40.7°C (105.3°F).

What is the average humidity in September in Sulur?

The average relative humidity in September in Sulur, India, is 67%.

How many days does it rain in September in Sulur?

In Sulur, in September, during 11.5 rainfall days, 33mm (1.3") of precipitation is typically accumulated.

How many hours of daylight does Sulur have in September?

In September, the average length of the day in Sulur, India, is 12.2h.

How long on average sun shines in September in Sulur?

In Sulur, India, the average sunshine in September is 9.1h.

How high is the UV index in September in Sulur?

The average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Sulur, India
  • Average high temperature in September: 32.5°C

The warmest month (with the highest average high temperature) is April (37.7°C).
The month with the lowest average high temperature is December (28.5°C).

  • Average low temperature in September: 22.5°C

The month with the highest average low temperature is May (24.7°C).
The coldest month (with the lowest average low temperature) is January (18.1°C).

Average pressure in September - Sulur, India
  • Average pressure in September: 1009.6mbar

The month with the highest atmospheric pressure is January (1013.3mbar).
Months with the lowest atmospheric pressure are May and June (1008.4mbar).

Average wind speed in September - Sulur, India
  • Average wind speed in September: 14.4km/h

The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is November (6.9km/h).

Average humidity in September - Sulur, India
  • Average humidity in September: 67%

The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is March (51%).

Average rainfall in September - Sulur, India
  • Average rainfall in September: 33mm

The wettest month (with the highest rainfall) is October (125mm).
The driest month (with the least rainfall) is January (8mm).

Average rainfall days in September - Sulur, India
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is October (20.1 days).
The month with the least rainy days is January (4.6 days).

Average daylight in September / Average sunshine in September - Sulur, India
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.8h).
The month with the shortest days is December (Average daylight: 11.5h).

  • Average sunshine in September: 9.1h

The month with the most sunshine is May (Average sunshine: 10.6h).
The month with the least sunshine is November (Average sunshine: 6.2h).

Average sunshine days in September - Sulur, India
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is May (8.6 days).

Average UV index in September - Sulur, India
  • Average UV index in September: 7

The month with the highest UV index is April (UV index 8).
Months with the lowest UV index are January, October, November and December (UV index 6).

Average cloud cover in September - Sulur, India
  • Average cloud cover in September: 31

The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is February (Cloud cover 15).

Average visibility in September - Sulur, India
  • Average visibility in September: 10km

Months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
Months with the lowest visibility are January, November and December (9km).