Guwahati
India
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Guwahati, India

September, the last month of the rainy (monsoon) season, in Guwahati, is another hot month, with average temperature fluctuating between 31.4°C (88.5°F) and 24.4°C (75.9°F).

Temperature

In Guwahati, the average high-temperature is practically the same as in August - a still tropical 31.4°C (88.5°F). In Guwahati, in September, the average low-temperature is 24.4°C (75.9°F).

Heat index

The average heat index in September is calculated to a scorching 43.4°C (110.1°F). Beware - heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (clothing, metabolic differences, differences in body mass, height, and shape), 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

July and September, with an average relative humidity of 83%, are most humid months.

Rainfall

In Guwahati, it is raining for 13.3 days, with typically 199mm (7.8") of accumulated precipitation. In Guwahati, India, during the entire year, the rain falls for 111.3 days and collects up to 1722mm (67.8") of precipitation.

Daylight

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

Sunshine

The average sunshine in September is 4.6h.

What is the temperature in September in Guwahati?

In September, in Guwahati, the average high-temperature is 31.4°C (88.5°F), and the average low-temperature is 24.4°C (75.9°F). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines relative humidity and air temperature, is estimated at 43.4°C (110.1°F).

What are the most humid months in Guwahati?

Months with the highest humidity in Guwahati, India, are July and September, with an average relative humidity of 83%.

What is the average humidity in September in Guwahati?

In September, the average relative humidity is 83%.

How many days does it rain in September in Guwahati?

In Guwahati, in September, during 13.3 rainfall days, 199mm (7.8") of precipitation is typically accumulated.

How many hours of daylight does Guwahati have in September?

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

How long on average sun shines in September in Guwahati?

In September, the average sunshine in Guwahati is 4.6h.
Average temperature in September - Guwahati, India
  • Average high temperature in September: 31.4°C

The warmest month (with the highest average high temperature) is August (32.1°C).
The month with the lowest average high temperature is January (23.6°C).

  • Average low temperature in September: 24.4°C

The month with the highest average low temperature is August (25.4°C).
The coldest month (with the lowest average low temperature) is January (10.5°C).

Average humidity in September - Guwahati, India
  • Average humidity in September: 83%

Months with the highest relative humidity are July and September (83%).
The month with the lowest relative humidity is March (57%).

Average rainfall in September - Guwahati, India
  • Average rainfall in September: 199mm

The wettest month (with the highest rainfall) is July (377mm).
The driest month (with the lowest rainfall) is January (8mm).

Average rainfall days in September - Guwahati, India
  • Average rainfall days in September: 13.3 days

The month with the highest number of rainy days is July (20 days).
The month with the lowest number of rainy days is December (0.9 days).

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

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.5h).

  • Average sunshine in September: 4.6h

The month with most sunshine is November (Average sunshine: 7.7h).
The month with least sunshine is July (Average sunshine: 4h).