Weather in Kolkata
Live weather and 7-day forecast for Kolkata, India, followed by what to expect in each month of the year.
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Forecast data from Open-Meteo
Climate in Kolkata: month by month
Averaged over 2023–2025, the warmest month in Kolkata is April, with highs around 37 °C (99 °F) and lows around 25 °C (77 °F); the coolest is January, with highs around 25 °C (78 °F) and lows around 14 °C (57 °F).
Kolkata gets about 1,972 mm (78 in) of precipitation a year. The wettest month is August (446 mm over about 28 days) and the driest is December (12 mm).
| Month | Avg high | Avg low | Precipitation (mm) | Wet days | Daylight |
|---|---|---|---|---|---|
| January | 25° | 14° | 15 | 2 | 10h 54m |
| February | 29° | 18° | 22 | 3 | 11h 24m |
| March | 33° | 21° | 68 | 9 | 12h 0m |
| April | 37° | 25° | 60 | 9 | 12h 40m |
| May | 35° | 26° | 182 | 16 | 13h 13m |
| June | 34° | 27° | 264 | 21 | 13h 30m |
| July | 32° | 26° | 360 | 30 | 13h 24m |
| August | 32° | 26° | 446 | 28 | 12h 56m |
| September | 32° | 26° | 343 | 26 | 12h 18m |
| October | 32° | 24° | 185 | 15 | 11h 39m |
| November | 29° | 19° | 15 | 2 | 11h 4m |
| December | 26° | 15° | 12 | 2 | 10h 46m |
Averages of daily values from the ERA5 reanalysis for 2023–2025 at Kolkata's coordinates (model elevation 12 m), via Open-Meteo (CC BY 4.0). Three recent years are not a 30-year climate normal; reanalysis smooths local extremes and tends to count more light-rain days than a rain gauge would. Daylight is sunrise to sunset on the 15th of each month.
Weather questions for Kolkata
What is the hottest month in Kolkata?
April, with average highs of 37 °C (99 °F) and lows of 25 °C (77 °F) over 2023–2025. The coolest month is January, averaging 25 °C (78 °F) by day and 14 °C (57 °F) at night.
What is the rainiest month in Kolkata?
August, with about 446 mm of precipitation on roughly 28 days. The driest month is December (12 mm), and the yearly total is around 1,972 mm.
When is the weather mildest in Kolkata?
Going by the averages, December–January are the months with average daytime highs between 18 °C and 27 °C (64–81 °F) — warm but not hot. August is the month most likely to bring rain.
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About this forecast
The live forecast comes from Open-Meteo, which blends models from national weather services and is fetched fresh in your browser on each visit. Times in the hourly outlook are Kolkata local time (Asia/Kolkata).