Calcutta Weather & Climate: Best Time to Visit
Calcutta has a Tropical wet-and-dry climate. The annual mean temperature is around 27°C (81°F). Summers are hot and humid with temperatures in the low 30's and during dry spells the maximum temperatures often exceed 40°C (104°F) during May and June. The highest recorded temperature is 44°C (111°F)
Winter tends to last for only about two and a half months, with seasonal lows dipping from 12°C (54°F) to 14°C (57°F) between December and January. The lowest recorded temperature is 5°C (41°F).
Monthly Temperature in Calcutta
In Calcutta, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a very hot 37°C (99°F) in April to a comfortable 27°C (81°F) in January.
Nighttime temperatures range from 27°C (81°F) in April to 14°C (57°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Calcutta
Calcutta experiences significant rainfall throughout the year, averaging 1674 mm (66 in) of precipitation annually. The seasons in Calcutta bring significant changes in precipitation. The wettest month, July, receives heavy rainfall, with an average of 350 mm (14 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 10 mm (0.4 in) over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Calcutta Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Calcutta
In Calcutta, summer days are longer and more sunny, with daily sunshine hours peaking at 8.0 hours in April. As the darker season arrives, the brightness of the sun becomes less. July sees a soft sun for only 3.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Calcutta
The mean water temperature over the year ranges from 24°C (75°F) in January to 29°C (84°F) in June.
Water temperature over the year
Humidity in Calcutta by Month
The relative humidity is high throughout the year in Calcutta.
The city experiences its highest humidity in July, reaching 83%. In March, the humidity drops to its lowest level at 51%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Calcutta
The average wind speed over the year ranges from () to 2 m/s (4 knots). It is lower in January, October, November and December and higher in April and May. What does this mean?
The mean monthly wind speed over the year (meters per second)
Calcutta 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Calcutta
The warm weather in Calcutta maintains temperatures between 27°C (81°F) and 37°C (99°F) year-round. Plan your visit during January, February, March, April, November and December for drier days and the best conditions to enjoy being outside.To make the most of your visit, consider exploring early in the morning or during the pleasant late afternoon hours when the temperature is most comfortable.
Be aware that June, July, August and September constitute the rainy season, with significant precipitation. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
