Kolkata, India Weather
Kolkata hourly forecast: next 24 hours
Today's high of 95°F (35°C) is about 7°F (4°C) above the typical September high of 88°F (31°C).
Current conditions in detail
Kolkata weather tomorrow (Thursday, September 17)
Tomorrow in Kolkata looks overcast, with a high of 95° and an overnight low of 81°. There is a 61% chance of rain - plan accordingly. Winds top out near 10 mph, and the UV index reaches 9 (very high).
Kolkata 14-day forecast
About the weather in Kolkata
Kolkata's year is organised around rain rather than temperature. 58% of its 73.3 inches (1863 mm) annual total arrives in the July to September window, while January averages 19 mm (0.7 in). Temperatures move far less: 94°F (34°C) at the year's warmest against 77°F (25°C) at its coolest.
Kolkata weather: quick facts
- Hottest month: May - highs near 94°F (34°C)
- Coldest month: January - highs near 77°F (25°C)
- Decade extremes (2015-2024): 110°F (44°C) high · 48°F (9°C) low
- Wettest month: July (30 rainy days) · Sunniest: April (10.9 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 11°C between the average warmest and coolest month · day to night: 8°C
- Months averaging 30°C or hotter: 8
- Average humidity: 77%
Temperatures through the year
Warmth peaks in May: highs of 94°F (34°C), lows of 80°F (27°C). January sits at the other end of the year: 77°F (25°C) by day, 57°F (14°C) at night. The gridded 2015-2024 daily record for this location tops out at 110°F (44°C) and bottoms at 48°F (9°C) - decade extremes, not all-time station records. Rainfall is strongly seasonal: 58% of the annual total falls in the July to September window, leaving January at 19 mm (0.7 in).
Rain, sun and snow
April is the brightest month at 10.9 hours of sun a day, against an annual average of 9.3. Average highs hold at or above 30°C for 8 months of the year, March through October being the unbroken run.
Season by season
March through May
Through March through May, Kolkata turns very hot: 94°F (34°C) by day, 76°F (25°C) after dark, and expect showers on roughly 29 days across the season. Daylight is generous - around 10.6 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
June through August
June through August sits firmly in the heat here - highs near 90°F (32°C), nights near 80°F (27°C), and rain falls on around 81 of the 90 days.
September through November
September through November sits firmly in the heat here - highs near 86°F (30°C), nights near 73°F (23°C), and rain falls on around 43 of the 90 days.
December through February
December through February is pleasantly warm here - highs near 80°F (27°C), nights near 60°F (15°C), and precipitation is sparse, near 2.9 inches (74 mm) for the season.
Average temperatures in Kolkata by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 77° | 57° | 2 | 0.7 in | 9.7 h/day | 72% |
| February | 84° | 63° | 2 | 1.0 in | 10.3 h/day | 68% |
| March | 91° | 71° | 6 | 1.5 in | 10.5 h/day | 68% |
| April | 96° | 78° | 9 | 3.1 in | 10.9 h/day | 71% |
| May | 94° | 80° | 14 | 5.7 in | 10.3 h/day | 77% |
| June | 92° | 81° | 22 | 9.2 in | 8.6 h/day | 82% |
| July | 89° | 80° | 30 | 15.8 in | 7.8 h/day | 86% |
| August | 88° | 79° | 29 | 15.2 in | 7.6 h/day | 87% |
| September | 88° | 79° | 26 | 11.6 in | 8.0 h/day | 87% |
| October | 87° | 75° | 14 | 7.1 in | 9.1 h/day | 83% |
| November | 84° | 67° | 2 | 1.3 in | 9.6 h/day | 74% |
| December | 78° | 60° | 2 | 1.2 in | 9.1 h/day | 73% |