Kolkata weather in July

In July, Kolkata sees average daytime highs of 32°C and overnight lows near 27°C, with 348 mm of rain across 28.8 wet days and about 13.2 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 1% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 24 min at the start of July to 13 h 06 min by month's end. Set against the rest of the year, July is Kolkata's 11th-clearest and 4th-windiest month. For the whole year in context, see Kolkata's year-round climate.

Daytime high
32°
5th warmest
Overnight low
27°
11th coldest
Rainfall
348 mm
28.8 wet days
Daylight
13 h 18 min
5:04 AM – 6:20 PM
Cloud cover
93%
11th clearest
Wind
11 km/h
4th windiest
Solar energy
3.94 kWh/m²
Travel score
2.2
out of 10

Kolkata is capital city of West Bengal, India.

Air quality
Severe
PM2.5 55.8 µg/m³ · 2019
Density
22,474/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical July day in Kolkata reaches about 32°C in the afternoon and slips back to 27°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, July runs about 2°C cooler than June and on par with August.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
13227
23227
33227
43227
53227
63227
73227
83227
93227
103227
113227
123227
133227
143227
153227
163227
173227
183227
193227
203227
213227
223227
233227
243227
253227
263227
273227
283227
293227
303227
313227

How July really feels in Kolkata

Once humidity and wind are folded in, July averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Kolkata weather by month

How July compares with the rest of the year at a glance. July is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°131.710.88.9
Feb29° / 17°242.711.27.1
Mar33° / 22°304.311.84.3
Apr35° / 26°688.812.52.6
May35° / 27°12211.713.12.3
Jun33° / 27°26521.913.42.2
Jul32° / 27°34828.813.22.2
Aug32° / 27°30829.312.82.2
Sep32° / 26°25024.912.12.5
Oct31° / 24°13112.911.54.3
Nov29° / 19°292.210.96.8
Dec26° / 15°10110.68.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 3% of July, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5496
6496
7496
8496
9496
10595
11595
12595
13595
14595
15496
16496
17496
18496
19397
20298
21298
22298
23298
24298
25199
26199
27199
28199
29199
30199
31199

Chance of precipitation in July

Any precipitation

Kolkata gets around 348 mm of rain over 28.8 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 93% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
192
292
392
493
593
693
793
893
993
1093
1193
1293
1393
1493
1593
1693
1793
1893
1993
2093
2193
2293
2393
2493
2593
2694
2794
2894
2994
3094
3194

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the miserable band about 100% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Miserable (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 13 h 24 min at the start of July to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over July. Sunrise moves from 4:59 AM to 5:11 AM, and sunset from 6:21 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.44:596:21
213.44:596:21
313.45:006:21
413.45:006:21
513.35:006:21
613.35:016:21
713.35:016:21
813.35:016:21
913.35:026:21
1013.35:026:21
1113.35:026:21
1213.35:036:21
1313.35:036:20
1413.35:046:20
1513.35:046:20
1613.35:046:20
1713.25:056:20
1813.25:056:19
1913.25:066:19
2013.25:066:19
2113.25:066:19
2213.25:076:18
2313.25:076:18
2413.25:086:18
2513.25:086:17
2613.15:096:17
2713.15:096:16
2813.15:096:16
2913.15:106:16
3013.15:106:15
3113.15:116:15

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.94 kWh/m².

For context, solar energy here swings from a low near 3.9 kWh/m² to a high of 6.32 kWh/m² in April across the year — July's 3.94 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Moderate
44.0Moderate
54.0Bright
64.0Bright
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.0Bright
124.0Bright
134.0Bright
144.0Moderate
154.0Moderate
164.0Moderate
174.0Moderate
184.0Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in July

Hazard calendar for Kolkata

In seasonPeak

In July, Kolkata sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Kolkata sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Kolkata's monsoon runs June–September, when most of the year's rain falls.

Cyclone
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Kolkata?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.2
Sightseeing
10th-best month of the year
3.5
Beach & pool
11th-best month of the year

July is a weaker month for outdoor sightseeing in Kolkata.

What to pack for Kolkata in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Kolkata sees daytime highs around 32°C and nights near 27°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Kolkata in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kolkata peaks around July 19 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 15 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateModerateJul 19UV 12Jan 15UV 4
UV index (midday)Level
Jan4Moderate
Feb5High
Mar8Very high
Apr8Very high
May10Very high
Jun8Very high
Jul13Extreme
Aug10Extreme
Sep11Extreme
Oct5Moderate
Nov5High
Dec5Moderate

Air quality in Kolkata in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Kolkata is worst in January — around 112 µg/m³ PM2.5 (unhealthy), about 6.8× the cleanest month (July, 17 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Kolkata's WHO annual average of 55.8 µg/m³.

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyModerateUnhealthyJan 10112 µg/m³Jul 1417 µg/m³
PM2.5 (µg/m³)Level
Jan112Unhealthy
Feb91Unhealthy
Mar58Unhealthy
Apr30Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug21Moderate
Sep28Moderate
Oct58Unhealthy
Nov103Unhealthy
Dec111Unhealthy
Location & terrain

Where is Kolkata?

Kolkata sits at 22.6°N, 88.4°E, 11 m above sea level, in India. The nearest listed city is Jessore, 110 km away.

RajshahiBarisalDhakaPaharpurMymensingh

Topography around Kolkata

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kolkata.

Within 3 km, the terrain around Kolkata has only modest variations in elevation — a maximum elevation change of 24 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 34 m; within 80 km, only modest variations in elevation — a maximum elevation change of 39 m.

The land around Kolkata is covered by artificial surfaces (75%) within 3 km, artificial surfaces (42%) and trees (39%) within 16 km, and cropland (50%) and trees (33%) within 80 km.

3 km
24 m
16 km
34 m
80 km
39 m
treesgrasslandcroplandartificial surfaceswatermangroves
July weather nearby: Jessore 110 km · Khulna 126 km · Bagerhat 147 km · Rajshahi 203 km · Barisal 207 km · Dhaka 245 km · Paharpur 281 km · Mymensingh 321 km

India travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / D / M
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,702
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
76%
of population, 2024
Homicide rate
2.8
per 100k, 2022
Road deaths
15.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 484
Religion
Hindu 80%Muslim 14%Christian 2%other and unspecified 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kolkata (22.5626°, 88.363°, elevation 11 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).