Kolkata, India experiences average highs of 31°C (88°F) and lows of 22°C (72°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Kolkata, India Weather & Climate 2026
Monthly climate averages for Kolkata, India. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.7/10
Best: January, February, November, December
UV Index
7
High
Temperature 31°C / 22°C
Feels Like 35°C / 26°C
Rainy Days 13
Rainfall 140 mm
Sunshine 9 h
Humidity 78%
Wind Speed 13 km/h
Dew Point 22°C
Hottest Month
36°C
April
Avg Low25°C
Rain8days
Coldest Month
13°C
January
Avg High25°C
Rain2days
Driest Month
2days
January
Avg High25°C
Avg Low13°C
Windiest Month
17 km/h
May (Gusts 35)
Worst Time to Visit
Consider avoiding May, June, July, August due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 04:53
Daylight 13.5h
Sunset 18:23
Live conditions—
Kolkata on the map · live conditions
Kolkata, India
- Continent
- Asia
- Country
- India
- City
- Kolkata
- Population
- 4.6M
- Coordinates
- 22.56°, 88.36°
Seasonal Breakdown
Spring
Mar–May
Avg High 34°C
Avg Low 24°C
Rain 9 days/mo
Summer
Jun–Aug
Avg High 32°C
Avg Low 27°C
Rain 27 days/mo
Autumn
Sep–Nov
Avg High 30°C
Avg Low 23°C
Rain 14 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 26°C
Avg Low 15°C
Rain 2 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 25°C / 13°C . Feb: 29°C / 17°C . Mar: 33°C / 21°C . Apr: 36°C / 25°C . May: 34°C / 27°C . Jun: 33°C / 27°C . Jul: 31°C / 26°C . Aug: 31°C / 26°C . Sep: 31°C / 26°C . Oct: 31°C / 24°C . Nov: 28°C / 19°C . Dec: 25°C / 15°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 10 mm. Feb: 30 mm. Mar: 36 mm. Apr: 65 mm. May: 146 mm. Jun: 226 mm. Jul: 322 mm. Aug: 352 mm. Sep: 284 mm. Oct: 153 mm. Nov: 31 mm. Dec: 29 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 72%. Feb: 68%. Mar: 69%. Apr: 71%. May: 77%. Jun: 82%. Jul: 86%. Aug: 87%. Sep: 87%. Oct: 84%. Nov: 74%. Dec: 73%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 11 km/h . Feb: 11 km/h . Mar: 12 km/h . Apr: 16 km/h . May: 17 km/h . Jun: 16 km/h . Jul: 15 km/h . Aug: 14 km/h . Sep: 13 km/h . Oct: 11 km/h . Nov: 10 km/h . Dec: 11 km/h .
Sunshine
Sunshine
Sunshine: Jan: 10h. Feb: 10h. Mar: 11h. Apr: 11h. May: 11h. Jun: 9h. Jul: 8h. Aug: 7h. Sep: 8h. Oct: 9h. Nov: 9h. Dec: 9h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 6. Feb: UV 7. Mar: UV 8. Apr: UV 9. May: UV 8. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 7. Oct: UV 7. Nov: UV 6. Dec: UV 5.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 30 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Apr 2025 · 34°C | Apr · 36°C |
| Coldest month | Jan 2025 · 14°C | Jan · 13°C |
| Wettest month | Jul 2025 · 540 mm | Aug · 352 mm |
| Windiest month | Apr 2025 · 15 km/h | May · 17 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March
Fair April
Poor May
Poor June
Wet July
Wet August
Wet September
Wet October
Poor November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 25°C / 13°C | 25°C / 13°C | 2days (10 mm) Excellent | 9.5h Good | 72% Muggy | 5.8 High | Excellent | View Details |
| February best | 29°C / 17°C | 30°C / 18°C | 3days (30 mm) Excellent | 10.2h Excellent | 68% Muggy | 6.9 High | Excellent | View Details |
| March | 33°C / 21°C | 36°C / 24°C | 5days (36 mm) Good | 10.7h Excellent | 69% Muggy | 8 Very High | Fair | View Details |
| April | 36°C / 25°C | 40°C / 30°C | 8days (65 mm) Wet | 11.4h Excellent | 71% Muggy | 8.6 Very High | Poor | View Details |
| May | 34°C / 27°C | 40°C / 32°C | 15days (146 mm) Wet | 10.8h Excellent | 77% Humid | 8.3 Very High | Poor | View Details |
| June | 33°C / 27°C | 40°C / 33°C | 22days (226 mm) Wet | 9h Good | 82% Humid | 8 Very High | Wet | View Details |
| July | 31°C / 26°C | 38°C / 32°C | 30days (322 mm) Wet | 7.6h Good | 86% Very Muggy | 7.6 Very High | Wet | View Details |
| August | 31°C / 26°C | 37°C / 32°C | 29days (352 mm) Wet | 7.2h Good | 87% Very Muggy | 7.3 Very High | Wet | View Details |
| September | 31°C / 26°C | 38°C / 31°C | 26days (284 mm) Wet | 7.9h Good | 87% Very Muggy | 7.1 Very High | Wet | View Details |
| October | 31°C / 24°C | 36°C / 28°C | 14days (153 mm) Wet | 8.7h Good | 84% Humid | 6.7 High | Poor | View Details |
| November best | 28°C / 19°C | 31°C / 20°C | 3days (31 mm) Excellent | 9.4h Good | 74% Muggy | 6 High | Excellent | View Details |
| December best | 25°C / 15°C | 26°C / 15°C | 2days (29 mm) Excellent | 9.3h Good | 73% Muggy | 5.2 High | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Kolkata are January, February, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Kolkata, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Kolkata is April, with average daytime highs of 36°C (96°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Kolkata is January, with average overnight lows of 13°C (56°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Kolkata is August, averaging 352mm of precipitation across 29 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Kolkata runs through July, August, September, June, with the heaviest rainfall in July. Based on 10-year averages for Kolkata.
Kolkata receives approximately 112 sunshine hours per year. The sunniest month is April with around 11 hours. Based on climate data for Kolkata.
The least favorable months to visit Kolkata are May, June, July, August, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, November, December instead.
The annual average UV index in Kolkata is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Kolkata is 78%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Average wind speeds in Kolkata are 13 km/h (8 mph). The windiest month is May with peak winds reaching 17 km/h (10 mph) (gusts up to 35 km/h / 21 mph).
Kolkata averages 8 clear-sky days per month with overall cloud cover around 52%. The clearest skies occur in January.
The annual average dew point in Kolkata is 22°C (72°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Kolkata has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Kolkata ranges from 26°C (79°F) to 35°C (95°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Kolkata, with a climate score of 1/10. Consider visiting during January, February, November, December instead for better conditions.
For June in Kolkata, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 33°C (92°F) and 22 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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