September weather forecast and climate
Siswal, India

September, the last month of the rainy (monsoon) season, in Siswal, is another very hot month, with temperature in the range of an average high of 35.5°C (95.9°F) and an average low of 26.6°C (79.9°F).

Temperature

In September, the average high-temperature is practically the same as in August - a still torrid 35.5°C (95.9°F). In Siswal, in September, the average low-temperature is 26.6°C (79.9°F).

Heat index

The average heat index in September is appraised at a blistering 42.3°C (108.1°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
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 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (wind, differences in body mass, height, and shape, pregnancy), and activity. 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 especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in Siswal is 51%.

Rainfall

In Siswal, it is raining for 10.2 days, with typically 42mm (1.65") of accumulated precipitation. In Siswal, during the entire year, the rain falls for 72.9 days and collects up to 250mm (9.84") of precipitation.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

In Siswal, the average sunshine is 9.4h.

UV index

In Siswal, India, the average daily maximum UV index is 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 8 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Siswal?

In September, in Siswal, the average high-temperature is 35.5°C (95.9°F), and the average low-temperature is 26.6°C (79.9°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 42.3°C (108.1°F).

What is the average humidity in September in Siswal?

In Siswal, the average relative humidity in September is 51%.

How much does it rain in Siswal in September?

In Siswal, India, in September, it is raining for 10.2 days, with typically 42mm (1.65") of accumulated precipitation.

How many hours of daylight does Siswal have in September?

In September, the average length of the day is 12.3h.

How long on average sun shines in September in Siswal?

In September, the average sunshine in Siswal is 9.4h.

How high is the UV index in September in Siswal?

The average daily maximum UV index in September is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in September - Siswal, India
  • Average high temperature in September: 35.5°C

The warmest month (with the highest average high temperature) is June (42.5°C).
The month with the lowest average high temperature is January (21.1°C).

  • Average low temperature in September: 26.6°C

The month with the highest average low temperature is June (32.7°C).
The coldest month (with the lowest average low temperature) is January (9.5°C).

Average pressure in September - Siswal, India
  • Average pressure in September: 1003.4mbar

The month with the highest atmospheric pressure is January (1017.2mbar).
The month with the lowest atmospheric pressure is July (996.4mbar).

Average wind speed in September - Siswal, India
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is June (12.4km/h).
The calmest month (with the lowest average wind speed) is October (7.4km/h).

Average humidity in September - Siswal, India
  • Average humidity in September: 51%

The month with the highest relative humidity is August (55%).
The month with the lowest relative humidity is May (17%).

Average rainfall in September - Siswal, India
  • Average rainfall in September: 42mm

The wettest month (with the highest rainfall) is July (77mm).
The driest month (with the least rainfall) is October (1mm).

Average rainfall days in September - Siswal, India
  • Average rainfall days in September: 10.2 days

The month with the highest number of rainy days is July (17.1 days).
Months with the least rainy days are October and November (0.9 days).

Average daylight in September / Average sunshine in September - Siswal, India
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

  • Average sunshine in September: 9.4h

The month with the most sunshine is May (Average sunshine: 12.1h).
Months with the least sunshine are November and December (Average sunshine: 7.6).

Average sunshine days in September - Siswal, India
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is December (29.7 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in September - Siswal, India
  • Average UV index in September: 8

Months with the highest UV index are April, May and June (UV index 9).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in September - Siswal, India
  • Average cloud cover in September: 19

The month with the most cloud cover is August (Cloud cover 32).
The month with the least cloud cover is October (Cloud cover 4).

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

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