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Kolkata in May: Weather, Average temperature and Climate

Take a look at past year’s weather for Kolkata in May and see if it is worth visiting.
Check flight prices to Kolkata on Avionero:
May

Weather in Kolkata in May 2025

OK Weather
Hot
🌧️
Rainy
Kolkata in May usually sees fair weather conditions, with an average daily high temperature of +35°C and roughly 5 sunny days. However, you should prepare for about 12 rainy days with an average precipitation of 96 mm. The weather is changeable so pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • May is usually the hottest month of the year in Kolkata;

Average weather

☀️
+35°C
Avg. max. temperature
+21°C
Min.
+41°C
Max.
96 mm
Total precipitation
77%
Avg. humidity
2 m/s
Avg. wind
5 ☀️
Sunny Days
9 ⛅️
Cloudy
12 🌦
Rainy
Our opinion: Kolkata has OK weather in May.

Average temperature in Kolkata in May

Here are the expected maximum, average and minimum temperatures in Kolkata for May based on the historical data.
Last Year
Historical Data

Going from a maximum of +39°C during the day to a minimum of +23°C during the night, the temperature in May averages around +36°C.

The average maximum temperature goes up 50% by the end of the month, compared with the beginning of the month, from +30°C to +38°C.

Is Kolkata warm or cold in May?

Kolkata is typically hot in May.

Maximum temperatures go up compared to the previous month from +35°C to +35°C. The minimum temperature also goes up from +25°C to +27°C.

Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.

May is the hottest month in Kolkata, here is the comparison with other months:

Climate in Kolkata in May

Kolkata weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+35°C+35°C+33°C
Min. temperature
+17°C+21°C+23°C
Max. temperature
+42°C+41°C+42°C
Rainfall
49 mm96 mm200 mm
Wind
2 m/s2 m/s2 m/s
Humidity
73%77%82%
Air pressure
1006 HPa1002 HPa999 HPa
Sunny days
1051
Cloudy days
795
Rainy days
101219
Snowy days
000

May typically has worse weather conditions compared to April. The temperature levels stay the same in the area of +35°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 49 mm to 96 mm. Humidity rises from 73% to 77%. The average wind speed doesn’t change much during May, staying around 2 m/s. The days becoming less sunny, going from 10 sunny days in April to 5 in May.

Next month (June) brings a further decline in the weather.

Wind

Wind speed in Kolkata in May based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Kolkata is gradually increasing during May, going from 2 m/s to 2 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Kolkata based on historical data.
Last Year
Historical Data
Typically, there is a 35% chance of rain on an average day in May, with total rainfall of approximately 38 mm. The maximum amount of rainfall per day is around 12 mm, which is considered light rain. May is a pretty wet month with over 11 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Kolkata wettest month is July, where a typical day has a 84% chance of precipitation and 248 mm of rainfall per day. January, on the other hand, is the driest month with a mere 10% chance of precipitation and 8 mm of rainfall per day.

How was the weather last May in Kolkata?

This is the weather in Kolkata in May 2023:
1 May
🌫️
+30°C
2 May
🌫️
+34°C
3 May
🌫️
+33°C
4 May
🌫️
+32°C
5 May
🌫️
+34°C
6 May
🌫️
+36°C
7 May
🌫️
+38°C
8 May
🌫️
+39°C
9 May
🌫️
+38°C
10 May
🌫️
+38°C
11 May
🌫️
+37°C
12 May
🌫️
+36°C
13 May
🌫️
+35°C
14 May
🌫️
+35°C
15 May
🌫️
+36°C
16 May
☁️
+37°C
17 May
🌫️
+36°C
18 May
🌫️
+35°C
19 May
🌫️
+37°C
20 May
🌫️
+38°C
21 May
🌫️
+37°C
22 May
🌫️
+37°C
23 May
🌫️
+39°C
24 May
🌫️
+35°C
25 May
🌫️
+37°C
26 May
🌫️
+35°C
27 May
🌫️
+33°C
28 May
🌫️
+36°C
29 May
🌫️
+37°C
30 May
🌫️
+37°C
31 May
🌫️
+38°C
In May 2023 Kolkata had 0 sunny days, 1 cloudy days, and 0 rainy days. The average maximum temperature was +36°C, with an absolute maximum of +39°C and a minimum of +30°C. The average humidity was 76%, with a maximum of 100% and a minimum of 41%. The average wind speed was 3 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

This is how Kolkata climate have been changing during last 43 years period.

The climate in Kolkata in May has not changed much over the last 43 years.

The average temperature was the lowest in 1981 (+30°C) and the highest in 2009 (+32°C). The driest year was 2012 with only 487 mm of rainfall, and the wettest year was 1990 with 1926 mm.

FAQ

Frequently asked questions about the weather in Kolkata in May:

Is May a good time to visit Kolkata?

It’s always a good time to visit Kolkata, but the weather is changeable in May, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Kolkata in May?

Absolutely, May is hot in Kolkata. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.

Is Kolkata rainy in May?

Kolkata is often rainy in May. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Kolkata in May?

Usually, it’s not very sunny in Kolkata in May, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in India

Check out the weather for other cities in India.

Monthly weather in Kolkata

Source of the data

For this page, we’ve looked at the typical weather in Kolkata, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.