Kolkata weather in August

In August, Kolkata sees average daytime highs of 32°C and overnight lows near 27°C, with 308 mm of rain across 29.3 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 2nd-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 0% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 hours at the start of August to 12 h 30 min by month's end. Set against the rest of the year, August is Kolkata's 11th-clearest and 5th-windiest month. For the whole year in context, see Kolkata's year-round climate.

Daytime high: 32°; 7th warmest
Overnight low: 27°; 9th coldest
Rainfall: 308 mm; 29.3 wet days
Daylight: 12 h 48 min; 5:17 AM – 6:04 PM
Cloud cover: 93%; 11th clearest
Wind: 10 km/h; 5th windiest
Solar energy: 3.9 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.

← July Kolkata year-round climate September →Best places to visit in August

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August 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 33°C. Set against its neighbours, August runs on par with July and on par with September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
Avg low (°C)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27

	Avg high (°C)	Avg low (°C)
1	32	27
2	32	27
3	32	27
4	32	27
5	32	27
6	32	27
7	32	27
8	32	27
9	32	27
10	32	27
11	32	27
12	32	27
13	32	27
14	32	27
15	32	27
16	32	27
17	32	27
18	32	27
19	32	27
20	32	27
21	32	27
22	32	27
23	32	27
24	32	27
25	32	27
26	32	27
27	32	27
28	32	27
29	32	27
30	32	27
31	32	27

How August really feels in Kolkata

Once humidity and wind are folded in, August 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 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

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

Kolkata weather by month

How August compares with the rest of the year at a glance. August is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	26° / 14°	13	1.7	10.8	8.9
Feb	29° / 17°	24	2.7	11.2	7.1
Mar	33° / 22°	30	4.3	11.8	4.3
Apr	35° / 26°	68	8.8	12.5	2.6
May	35° / 27°	122	11.7	13.1	2.3
Jun	33° / 27°	265	21.9	13.4	2.2
Jul	32° / 27°	348	28.8	13.2	2.2
Aug	32° / 27°	308	29.3	12.8	2.2
Sep	32° / 26°	250	24.9	12.1	2.5
Oct	31° / 24°	131	12.9	11.5	4.3
Nov	29° / 19°	29	2.2	10.9	6.8
Dec	26° / 15°	10	1	10.6	8.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 2% of August, with mostly cloudy or overcast conditions the remaining 98%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3	3	4	5	5
Cloudier (%)	99	99	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	97	97	97	96	95	95

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	3	97
27	3	97
28	3	97
29	4	96
30	5	95
31	5	95

Chance of precipitation in August

Any precipitation

Kolkata gets around 308 mm of rain over 29.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 94% and peaks near 96% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	95	95	95	95	95	95	95	96	96	96	96	95	95	95	95	95	95	95	94	94	94	94	93	93	93	93	93	93	92	92	92

	Rain chance (%)
1	95
2	95
3	95
4	95
5	95
6	95
7	95
8	96
9	96
10	96
11	96
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	93
24	93
25	93
26	93
27	93
28	93
29	92
30	92
31	92

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

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

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Miserable (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Miserable (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	10	calm
2	10	calm
3	10	calm
4	10	calm
5	10	calm
6	10	calm
7	10	calm
8	10	calm
9	10	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	9	calm
30	9	calm
31	9	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 hours at the start of August to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over August. Sunrise moves from 5:11 AM to 5:22 AM, and sunset from 6:14 PM to 5:51 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	13.0	13.0	13.0	13.0	13.0	13.0	12.9	12.9	12.9	12.9	12.9	12.9	12.8	12.8	12.8	12.8	12.8	12.7	12.7	12.7	12.7	12.7	12.6	12.6	12.6	12.6	12.6	12.5	12.5	12.5	12.5
Sunrise (AM)	5:11	5:12	5:12	5:12	5:13	5:13	5:14	5:14	5:14	5:15	5:15	5:16	5:16	5:16	5:17	5:17	5:17	5:18	5:18	5:19	5:19	5:19	5:20	5:20	5:20	5:21	5:21	5:21	5:22	5:22	5:22
Sunset (PM)	6:14	6:14	6:13	6:12	6:12	6:11	6:11	6:10	6:09	6:09	6:08	6:07	6:06	6:06	6:05	6:04	6:03	6:03	6:02	6:01	6:00	5:59	5:58	5:57	5:57	5:56	5:55	5:54	5:53	5:52	5:51

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	13.0	5:11	6:14
2	13.0	5:12	6:14
3	13.0	5:12	6:13
4	13.0	5:12	6:12
5	13.0	5:13	6:12
6	13.0	5:13	6:11
7	12.9	5:14	6:11
8	12.9	5:14	6:10
9	12.9	5:14	6:09
10	12.9	5:15	6:09
11	12.9	5:15	6:08
12	12.9	5:16	6:07
13	12.8	5:16	6:06
14	12.8	5:16	6:06
15	12.8	5:17	6:05
16	12.8	5:17	6:04
17	12.8	5:17	6:03
18	12.7	5:18	6:03
19	12.7	5:18	6:02
20	12.7	5:19	6:01
21	12.7	5:19	6:00
22	12.7	5:19	5:59
23	12.6	5:20	5:58
24	12.6	5:20	5:57
25	12.6	5:20	5:57
26	12.6	5:21	5:56
27	12.6	5:21	5:55
28	12.5	5:21	5:54
29	12.5	5:22	5:53
30	12.5	5:22	5:52
31	12.5	5:22	5:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.9 kWh/m² — the year's lowest.

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 — August's 3.9 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.8	3.8	3.8	3.8	3.8	3.8	3.8	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.9	Moderate
2	3.9	Moderate
3	3.9	Moderate
4	3.9	Moderate
5	3.9	Moderate
6	3.9	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	3.9	Moderate
11	3.8	Moderate
12	3.8	Moderate
13	3.8	Moderate
14	3.8	Moderate
15	3.8	Moderate
16	3.8	Moderate
17	3.8	Moderate
18	3.9	Moderate
19	3.9	Moderate
20	3.9	Moderate
21	3.9	Moderate
22	3.9	Moderate
23	3.9	Moderate
24	3.9	Moderate
25	3.9	Moderate
26	3.9	Moderate
27	3.9	Moderate
28	3.9	Moderate
29	4.0	Moderate
30	4.0	Moderate
31	4.0	Moderate

Planning a trip in August

Hazard calendar for Kolkata

In seasonPeak

In August, 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 August a good time to visit Kolkata?

Our two travel scores rate August 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

12th-best month of the year

August is a weaker month for outdoor sightseeing in Kolkata.

What to pack for Kolkata in August

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

In August, 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 10 (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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	4	5	8	8	10	8	13	10	11	5	5	5
Level	Moderate	High	Very high	Very high	Very high	Very high	Extreme	Extreme	Extreme	Moderate	High	Moderate

	UV index (midday)	Level
Jan	4	Moderate
Feb	5	High
Mar	8	Very high
Apr	8	Very high
May	10	Very high
Jun	8	Very high
Jul	13	Extreme
Aug	10	Extreme
Sep	11	Extreme
Oct	5	Moderate
Nov	5	High
Dec	5	Moderate

Air quality in Kolkata in August

GoodModeratePoorUnhealthyVery unhealthy

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	112	91	58	30	22	19	17	21	28	58	103	111
Level	Unhealthy	Unhealthy	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Unhealthy	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	112	Unhealthy
Feb	91	Unhealthy
Mar	58	Unhealthy
Apr	30	Moderate
May	22	Moderate
Jun	19	Moderate
Jul	17	Moderate
Aug	21	Moderate
Sep	28	Moderate
Oct	58	Unhealthy
Nov	103	Unhealthy
Dec	111	Unhealthy

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.

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

artificial surfaces 75%

16 km

34 m

artificial surfaces 42%

80 km

39 m

cropland 50%

treesgrasslandcroplandartificial surfaceswatermangroves

← July Kolkata year-round climate September →Best places to visit in August

August 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

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).

	Avg high (°C)	Avg low (°C)
1	32	27
2	32	27
3	32	27
4	32	27
5	32	27
6	32	27
7	32	27
8	32	27
9	32	27
10	32	27
11	32	27
12	32	27
13	32	27
14	32	27
15	32	27
16	32	27
17	32	27
18	32	27
19	32	27
20	32	27
21	32	27
22	32	27
23	32	27
24	32	27
25	32	27
26	32	27
27	32	27
28	32	27
29	32	27
30	32	27
31	32	27

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	3	97
27	3	97
28	3	97
29	4	96
30	5	95
31	5	95

	Rain chance (%)
1	95
2	95
3	95
4	95
5	95
6	95
7	95
8	96
9	96
10	96
11	96
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	93
24	93
25	93
26	93
27	93
28	93
29	92
30	92
31	92

	Miserable (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	32	27
2	32	27
3	32	27
4	32	27
5	32	27
6	32	27
7	32	27
8	32	27
9	32	27
10	32	27
11	32	27
12	32	27
13	32	27
14	32	27
15	32	27
16	32	27
17	32	27
18	32	27
19	32	27
20	32	27
21	32	27
22	32	27
23	32	27
24	32	27
25	32	27
26	32	27
27	32	27
28	32	27
29	32	27
30	32	27
31	32	27

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	3	97
27	3	97
28	3	97
29	4	96
30	5	95
31	5	95

	Rain chance (%)
1	95
2	95
3	95
4	95
5	95
6	95
7	95
8	96
9	96
10	96
11	96
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	93
24	93
25	93
26	93
27	93
28	93
29	92
30	92
31	92

	Miserable (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	32	27
2	32	27
3	32	27
4	32	27
5	32	27
6	32	27
7	32	27
8	32	27
9	32	27
10	32	27
11	32	27
12	32	27
13	32	27
14	32	27
15	32	27
16	32	27
17	32	27
18	32	27
19	32	27
20	32	27
21	32	27
22	32	27
23	32	27
24	32	27
25	32	27
26	32	27
27	32	27
28	32	27
29	32	27
30	32	27
31	32	27

	Clearer (%)	Cloudier (%)
1	1	99
2	1	99
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	3	97
27	3	97
28	3	97
29	4	96
30	5	95
31	5	95

	Rain chance (%)
1	95
2	95
3	95
4	95
5	95
6	95
7	95
8	96
9	96
10	96
11	96
12	95
13	95
14	95
15	95
16	95
17	95
18	95
19	94
20	94
21	94
22	94
23	93
24	93
25	93
26	93
27	93
28	93
29	92
30	92
31	92

	Miserable (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100