May weather forecast
Kolkata, India

The sun rising above the great Victoria Memorial monument and museum in Kolkata, India
The sun rising above the great Victoria Memorial monument and museum in Kolkata, India

Weather in May

The last month of the pre-monsoon summer, May, is another very hot month in Kolkata, India, with an average temperature fluctuating between 26°C (78.8°F) and 35.4°C (95.7°F).

Temperature

May is the warmest month, with an average high-temperature of 35.4°C (95.7°F) and an average low-temperature of 26°C (78.8°F).

Heat index

The average heat index in May is appraised at a blazing hot 52°C (125.6°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 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like differences in body mass, height, and shape, wind, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the 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 cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. 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 surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In May, the average relative humidity in Kolkata is 70%.

Rainfall

In Kolkata, India, during 8.7 rainfall days, 142mm (5.59") of precipitation is typically accumulated. In Kolkata, during the entire year, the rain falls for 101.5 days and collects up to 1800mm (70.87") of precipitation.

Daylight

The average length of the day in May is 13h and 13min.
On the first day of the month, sunrise is at 5:04 am and sunset at 6:03 pm. On the last day of May, sunrise is at 4:51 am and sunset at 6:16 pm IST.

Sunshine

The average sunshine in May is 7.3h.

UV index

April through August, with an average maximum UV index of 12, are months with the highest UV index in Kolkata, India. A UV Index reading of 11, and higher, represents an excessive health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 12 in May transform into the following instructions:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.
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FAQ

What is the warmest month in Kolkata?

May is the warmest month, with an average high-temperature of 35.4°C (95.7°F) and an average low-temperature of 26°C (78.8°F).

What is the temperature in May in Kolkata?

In May, in Kolkata, India, the average high-temperature is 35.4°C (95.7°F), and the average low-temperature is 26°C (78.8°F). in May, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 52°C (125.6°F).

What is the average humidity in May in Kolkata?

The average relative humidity in May is 70%.

How much does it rain in Kolkata in May?

In Kolkata, during May, the rain falls for 8.7 days and regularly aggregates up to 142mm (5.59") of precipitation.

How many hours of daylight does Kolkata have in May?

In Kolkata, India, the average day length in May is 13h and 13min.

What time are sunrise and sunset in May in Kolkata?

In May, on the first day of the month, sunrise is at 5:04 am and sunset at 6:03 pm. On the last day of the month, in Kolkata, sunrise is at 4:51 am and sunset at 6:16 pm IST.

How many hours of sunshine does Kolkata have in May?

In Kolkata, India, the average sunshine duration in May is 7.3h.

What are the months with the highest UV index in Kolkata?

The months with the highest UV index in Kolkata, India, are April through August, with an average maximum UV index of 12.

What is the UV index intensity in May in Kolkata?

The average daily maximum UV index in May is 12. A UV Index estimate of 11, and higher, represents an excessive health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine
Average UV index

Average temperature in May
Kolkata, India

Average temperature in May - Kolkata, India
  • Average high temperature in May: 35.4°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 May: 26°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).

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Average humidity in May
Kolkata, India

Average humidity in May - Kolkata, India
  • Average humidity in May: 70%

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

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Average rainfall in May
Kolkata, India

Average rainfall in May - Kolkata, India
  • Average rainfall in May: 142mm

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

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Average rainfall days in May
Kolkata, India

Average rainfall days in May - Kolkata, India
  • Average rainfall days in May: 8.7 days

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

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Average daylight in May /
Average sunshine in May
Kolkata, India

Average daylight in May / Average sunshine in May - Kolkata, India
  • Average daylight in May: 13h and 13min

The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 47min).

  • Average sunshine in May: 7h and 18min

The month with the most sunshine is April (Average sunshine: 7h and 48min).
The month with the least sunshine is July (Average sunshine: 3h and 0min).

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Average UV index in May
Kolkata, India

Average UV index in May - Kolkata, India
  • Average UV index in May: 12

The 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).

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