Kolkata weather in October

In October, Kolkata sees average daytime highs of 31°C and overnight lows near 24°C, with 131 mm of rain across 12.9 wet days and about 11.5 hours of daylight. It is the 8th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 48% of the time in October, and the air most often feels miserable.

Daylight stretches from about 11 h 48 min at the start of October to 11 h 12 min by month's end. Set against the rest of the year, October is Kolkata's 8th-clearest and 12th-windiest month. For the whole year in context, see Kolkata's year-round climate.

Daytime high
31°
8th warmest
Overnight low
24°
6th coldest
Rainfall
131 mm
12.9 wet days
Daylight
11 h 30 min
5:38 AM – 5:06 PM
Cloud cover
49%
8th clearest
Wind
6 km/h
12th windiest
Solar energy
4.32 kWh/m²
Travel score
4.3
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 October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical October day in Kolkata reaches about 31°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°C. Set against its neighbours, October runs on par with September and about 2°C warmer than November.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83225
93225
103225
113225
123225
133125
143125
153125
163124
173124
183124
193124
203124
213124
223124
233123
243123
253123
263123
273123
283023
293022
303022
313022

How October really feels in Kolkata

Once humidity and wind are folded in, October 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
10 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Kolkata weather by month

How October compares with the rest of the year at a glance. October is the 8th-warmest and 5th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
34357
44555
54654
64852
74951
85248
95347
105545
115644
125743
136040
146238
156337
166436
176733
186733
196832
206931
217030
227030
237030
247030
257129
267129
277228
287228
297228
307327
317327

Chance of precipitation in October

Any precipitation

Kolkata gets around 131 mm of rain over 12.9 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 67% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
167
265
364
462
561
660
758
857
956
1054
1152
1250
1348
1445
1543
1641
1739
1837
1935
2033
2131
2229
2328
2426
2525
2623
2722
2820
2919
3018
3117

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the miserable band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1000397
2000397
3000496
4000595
5000694
6000892
70001090
80001189
90011386
100011683
110011881
120022177
130022375
140032671
150042967
160053263
170073558
180193753
1901104049
2001124245
2101144441
2201164636
2302184833
2402205029
2502225125
2602235322
2703255319
2803275416
2904295314
3015305212
3116325110

Wind in October

Winds average 6 km/h in October, the calmest month.

Across October, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over October. Sunrise moves from 5:32 AM to 5:45 AM, and sunset from 5:19 PM to 4:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:325:19
211.85:325:18
311.75:325:17
411.75:335:16
511.75:335:15
611.75:335:15
711.75:345:14
811.65:345:13
911.65:355:12
1011.65:355:11
1111.65:355:10
1211.65:365:09
1311.55:365:08
1411.55:375:07
1511.55:375:06
1611.55:385:06
1711.45:385:05
1811.45:385:04
1911.45:395:03
2011.45:395:02
2111.45:405:02
2211.35:405:01
2311.35:415:00
2411.35:415:00
2511.35:424:59
2611.35:424:58
2711.25:434:58
2811.25:434:57
2911.25:444:56
3011.25:444:56
3111.25:454:55

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.32 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 — October's 4.32 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.4Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in October

Hazard calendar for Kolkata

In seasonPeak

In October, Kolkata sits inside its cyclone 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 October a good time to visit Kolkata?

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

4.3
Sightseeing
5th-best month of the year
6.4
Beach & pool
6th-best month of the year

October is a reasonable time to visit Kolkata for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kolkata in October

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

In October, Kolkata sees daytime highs around 31°C and nights near 24°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

UV index in Kolkata in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).