Kolkata
India
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Kolkata, India

The sun rising above the magnificent Victoria Memorial monument and museum in Kolkata, India
The sun rising above the magnificent Victoria Memorial monument and museum in Kolkata, India
The first month of the post monsoon autumn, October, is still a tropical month in Kolkata, India, with temperature in the range of an average low of 23.9°C (75°F) and an average high of 32.3°C (90.1°F).

Temperature

In Kolkata, India, the average high-temperature is relatively the same as in September - a still tropical 32.3°C (90.1°F). The average low-temperature, in Kolkata, is 23.9°C (75°F).

Heat index

The average heat index is appraised at a scorching 42.5°C (108.5°F). Be wary - heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like differences in body mass, height, and shape, metabolic differences, wind, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In October, the average relative humidity in Kolkata is 73%.

Rainfall

In October, the rain falls for 8.1 days. Throughout October, 143mm (5.6") of precipitation is accumulated. In Kolkata, India, during the entire year, the rain falls for 101.5 days and collects up to 1800mm (70.9") of precipitation.

Daylight

The average length of the day in Kolkata is 11.6h.

Sunshine

The average sunshine in Kolkata is 5.9h.

UV index

The average daily maximum UV index in October is 9. A UV Index value of 8 to 10 symbolizes a very high health hazard from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 9 in October interpret into the following advice:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.

What is the temperature in October in Kolkata?

The average high-temperature, in October, in Kolkata, India, is 32.3°C (90.1°F), while the average low-temperature is 23.9°C (75°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), that factores the actual air temperature with the relative humidity, in October is evaluated at 42.5°C (108.5°F).

What is the average humidity in October in Kolkata?

In Kolkata, India, the average relative humidity in October is 73%.

How much does it rain in Kolkata in October?

In Kolkata, India, in October, during 8.1 rainfall days, 143mm (5.6") of precipitation is typically accumulated.

What is the average length of the day in October in Kolkata?

The average length of the day in October in Kolkata is 11.6h.

How long on average sun shines in October in Kolkata?

In October, the average sunshine is 5.9h.

What is the UV index intensity in October in Kolkata?

In Kolkata, India, the average daily maximum UV index in October is 9. A UV Index of 8 to 10 symbolizes a very high health risk from unprotected exposure to the UV radiation.
Average temperature in October - Kolkata, India
  • Average high temperature in October: 32.3°C

The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (26.4°C).

  • Average low temperature in October: 23.9°C

The month with the highest average low temperature is June (26.5°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).

Average humidity in October - Kolkata, India
  • Average humidity in October: 73%

Months with the highest relative humidity are July and August (83%).
Months with the lowest relative humidity are February and March (58%).

Average rainfall in October - Kolkata, India
  • Average rainfall in October: 143mm

The wettest month (with the highest rainfall) is July (411mm).
The driest month (with the lowest rainfall) is January (11mm).

Average rainfall days in October - Kolkata, India
  • Average rainfall days in October: 8.1 days

The month with the highest number of rainy days is July (20.5 days).
The month with the lowest number of rainy days is December (0.9 days).

Average daylight in October / Average sunshine in October - Kolkata, India
  • Average daylight in October: 11.6h

The month with the longest days is June (Average daylight: 13.5h).
The month with shortest days is December (Average daylight: 10.8h).

  • Average sunshine in October: 5.9h

The month with most sunshine is April (Average sunshine: 7.8h).
The month with least sunshine is July (Average sunshine: 3h).

Average UV index in October - Kolkata, India
  • Average UV index in October: 9

Months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).