Khulna weather in September

In September, Khulna sees average daytime highs of 32°C and overnight lows near 26°C, with 235 mm of rain across 25.6 wet days and about 12.1 hours of daylight. It is the 5th-warmest and 4th-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 8% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Khulna's 9th-clearest and 6th-windiest month. For the whole year in context, see Khulna's year-round climate.

Daytime high: 32°; 5th warmest
Overnight low: 26°; 9th coldest
Rainfall: 235 mm; 25.6 wet days
Daylight: 12 h 06 min; 5:52 AM – 6:00 PM
Cloud cover: 83%; 9th clearest
Wind: 9 km/h; 6th windiest
Solar energy: 3.92 kWh/m²
Travel score: 2.5; out of 10

Khulna is 3rd largest city of Bangladesh.

Air quality: Severe; PM2.5 61.2 µg/m³ · 2018
Density: 25,192/km²; people per km²
Founded: 1884

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

← August Khulna year-round climate October →Best places to visit in September

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Khulna reaches about 32°C in the afternoon and slips back to 26°C overnight — a 5°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, September runs on par with August and on par with October.

	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
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
Avg low (°C)	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	27	26	26	26	26	26	26	26	26	26	26	26	26	26

	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	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

How September really feels in Khulna

Once humidity and wind are folded in, September averages 30 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

30 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

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

Khulna weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	25° / 14°	8	1.3	10.8	9.1
Feb	28° / 17°	19	2.8	11.2	7.5
Mar	32° / 22°	40	5.1	11.8	4.7
Apr	34° / 25°	115	11.4	12.5	3.0
May	34° / 26°	188	15.7	13.1	2.8
Jun	33° / 27°	306	24.3	13.4	2.3
Jul	32° / 27°	349	29.6	13.3	2.2
Aug	32° / 27°	294	29	12.8	2.3
Sep	32° / 26°	235	25.6	12.1	2.5
Oct	31° / 25°	136	14.5	11.5	4.2
Nov	29° / 20°	37	2.2	10.9	7.0
Dec	26° / 16°	10	0.9	10.6	8.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 84%. Skies tend to open up as the month goes on.

	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
Clearer (%)	7	7	7	8	9	9	10	11	11	12	12	12	12	14	14	14	14	15	15	18	18	19	20	22	24	25	27	29	30	32
Cloudier (%)	93	93	93	92	91	91	90	89	89	88	88	88	88	86	86	86	86	85	85	82	82	81	80	78	76	75	73	71	70	68

	Clearer (%)	Cloudier (%)
1	7	93
2	7	93
3	7	93
4	8	92
5	9	91
6	9	91
7	10	90
8	11	89
9	11	89
10	12	88
11	12	88
12	12	88
13	12	88
14	14	86
15	14	86
16	14	86
17	14	86
18	15	85
19	15	85
20	18	82
21	18	82
22	19	81
23	20	80
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	30	70
30	32	68

Chance of precipitation in September

Any precipitation

Khulna gets around 235 mm of rain over 25.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% and peaks near 93% on the wettest days. The odds ease toward the end of the month.

	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
Rain chance (%)	93	93	92	92	92	91	91	90	90	89	89	88	88	88	87	87	86	86	85	84	83	82	81	80	79	79	78	77	76	75

	Rain chance (%)
1	93
2	93
3	92
4	92
5	92
6	91
7	91
8	90
9	90
10	89
11	89
12	88
13	88
14	88
15	87
16	87
17	86
18	86
19	85
20	84
21	83
22	82
23	81
24	80
25	79
26	79
27	78
28	77
29	76
30	75

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 99% 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
Oppressive (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	2	2	3	3
Miserable (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	98	98	98	98	97	97

	Oppressive (%)	Miserable (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	0	100
10	0	100
11	0	100
12	0	100
13	0	100
14	0	100
15	0	100
16	0	100
17	0	100
18	0	100
19	0	100
20	1	99
21	1	99
22	1	99
23	1	99
24	1	99
25	2	98
26	2	98
27	2	98
28	2	98
29	3	97
30	3	97

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 7 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
Wind speed (km/h)	10	10	10	10	10	10	10	10	10	10	9	9	9	9	9	9	9	9	9	9	8	8	8	8	8	8	8	7	7	7
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

	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	9	calm
12	9	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	7	calm
29	7	calm
30	7	calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 30 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over September. Sunrise moves from 5:48 AM to 5:57 AM, and sunset from 6:15 PM to 5:45 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
Daylight (h)	12.5	12.4	12.4	12.4	12.4	12.4	12.3	12.3	12.3	12.3	12.2	12.2	12.2	12.2	12.2	12.1	12.1	12.1	12.1	12.0	12.0	12.0	12.0	11.9	11.9	11.9	11.9	11.9	11.8	11.8
Sunrise (AM)	5:48	5:48	5:48	5:49	5:49	5:49	5:49	5:50	5:50	5:50	5:51	5:51	5:51	5:52	5:52	5:52	5:52	5:53	5:53	5:53	5:54	5:54	5:54	5:55	5:55	5:55	5:56	5:56	5:56	5:57
Sunset (PM)	6:15	6:14	6:13	6:12	6:11	6:10	6:09	6:08	6:07	6:06	6:05	6:04	6:03	6:02	6:01	6:00	5:59	5:58	5:57	5:56	5:55	5:54	5:53	5:52	5:51	5:50	5:49	5:47	5:46	5:45

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:48	6:15
2	12.4	5:48	6:14
3	12.4	5:48	6:13
4	12.4	5:49	6:12
5	12.4	5:49	6:11
6	12.4	5:49	6:10
7	12.3	5:49	6:09
8	12.3	5:50	6:08
9	12.3	5:50	6:07
10	12.3	5:50	6:06
11	12.2	5:51	6:05
12	12.2	5:51	6:04
13	12.2	5:51	6:03
14	12.2	5:52	6:02
15	12.2	5:52	6:01
16	12.1	5:52	6:00
17	12.1	5:52	5:59
18	12.1	5:53	5:58
19	12.1	5:53	5:57
20	12.0	5:53	5:56
21	12.0	5:54	5:55
22	12.0	5:54	5:54
23	12.0	5:54	5:53
24	11.9	5:55	5:52
25	11.9	5:55	5:51
26	11.9	5:55	5:50
27	11.9	5:56	5:49
28	11.9	5:56	5:47
29	11.8	5:56	5:46
30	11.8	5:57	5:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.92 kWh/m².

For context, solar energy here swings from a low near 3.83 kWh/m² to a high of 5.97 kWh/m² in April across the year — September's 3.92 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
Solar energy (kWh/m²)	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	3.9	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.1	4.1
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	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	3.9	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	3.9	Moderate
15	3.9	Moderate
16	3.9	Moderate
17	3.9	Moderate
18	3.9	Moderate
19	3.9	Moderate
20	4.0	Moderate
21	4.0	Moderate
22	4.0	Moderate
23	4.0	Moderate
24	4.0	Bright
25	4.0	Bright
26	4.0	Bright
27	4.0	Bright
28	4.0	Bright
29	4.1	Bright
30	4.1	Bright

Planning a trip in September

Hazard calendar for Khulna

In seasonPeak

In September, Khulna sits inside its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.

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

Khulna's monsoon runs May–September, when most of the year's rain falls.

Cyclone

Monsoon

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Khulna?

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

2.5

Sightseeing

9th-best month of the year

3.9

Beach & pool

10th-best month of the year

September is a weaker month for outdoor sightseeing in Khulna.

What to pack for Khulna in September

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

In September, Khulna sees daytime highs around 32°C and nights near 26°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Khulna in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Khulna peaks around July 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 15 at about 5 (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)	5	5	8	8	10	8	13	11	10	5	5	5
Level	Moderate	Moderate	Very high	Very high	Very high	Very high	Extreme	Extreme	Extreme	High	High	Moderate

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

Air quality in Khulna in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Khulna is worst in January — around 129 µg/m³ PM2.5 (unhealthy), about 5.9× the cleanest month (July, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Khulna's WHO annual average of 61.2 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	129	95	63	38	30	28	22	27	28	52	100	124
Level	Unhealthy	Unhealthy	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Unhealthy	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	129	Unhealthy
Feb	95	Unhealthy
Mar	63	Unhealthy
Apr	38	Poor
May	30	Moderate
Jun	28	Moderate
Jul	22	Moderate
Aug	27	Moderate
Sep	28	Moderate
Oct	52	Poor
Nov	100	Unhealthy
Dec	124	Unhealthy

Location & terrain

Where is Khulna?

Khulna sits at 22.8°N, 89.6°E, 8 m above sea level, in Bangladesh. The nearest listed city is Bagerhat, 29 km away.

Topography around Khulna

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

Within 3 km, the terrain around Khulna has only modest variations in elevation — a maximum elevation change of 15 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 19 m; within 80 km, only modest variations in elevation — a maximum elevation change of 21 m.

The land around Khulna is covered by artificial surfaces (43%) and trees (35%) within 3 km, cropland (54%) and trees (35%) within 16 km, and cropland (47%) and trees (33%) within 80 km.

3 km

15 m

artificial surfaces 43%

16 km

19 m

cropland 54%

80 km

21 m

cropland 47%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves

← August Khulna year-round climate October →Best places to visit in September

September weather nearby: Bagerhat 29 km · Jessore 54 km · Barisal 83 km · Kolkata 126 km · Dhaka 132 km · Rajshahi 200 km · Mymensingh 233 km · Chittagong 239 km

Bangladesh travel facts

Travel advisory: Level 3; Reconsider Travel
Power plugs: Type A / C / D / G; 220 V · 50 Hz
Prices: ≈ 25% of US; price level, 2025
GDP per capita: $2,597; 2025
Happiness: 4.3 / 10; World Happiness, 2025
Safe drinking water: 59%; of population, 2024
Homicide rate: 2.3; per 100k, 2018
Road deaths: 15.3; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Moderate; EF EPI 506
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 Khulna (22.8098°, 89.5644°, elevation 8 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	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

	Clearer (%)	Cloudier (%)
1	7	93
2	7	93
3	7	93
4	8	92
5	9	91
6	9	91
7	10	90
8	11	89
9	11	89
10	12	88
11	12	88
12	12	88
13	12	88
14	14	86
15	14	86
16	14	86
17	14	86
18	15	85
19	15	85
20	18	82
21	18	82
22	19	81
23	20	80
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	30	70
30	32	68

	Rain chance (%)
1	93
2	93
3	92
4	92
5	92
6	91
7	91
8	90
9	90
10	89
11	89
12	88
13	88
14	88
15	87
16	87
17	86
18	86
19	85
20	84
21	83
22	82
23	81
24	80
25	79
26	79
27	78
28	77
29	76
30	75

	Oppressive (%)	Miserable (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	0	100
10	0	100
11	0	100
12	0	100
13	0	100
14	0	100
15	0	100
16	0	100
17	0	100
18	0	100
19	0	100
20	1	99
21	1	99
22	1	99
23	1	99
24	1	99
25	2	98
26	2	98
27	2	98
28	2	98
29	3	97
30	3	97

	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	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

	Clearer (%)	Cloudier (%)
1	7	93
2	7	93
3	7	93
4	8	92
5	9	91
6	9	91
7	10	90
8	11	89
9	11	89
10	12	88
11	12	88
12	12	88
13	12	88
14	14	86
15	14	86
16	14	86
17	14	86
18	15	85
19	15	85
20	18	82
21	18	82
22	19	81
23	20	80
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	30	70
30	32	68

	Rain chance (%)
1	93
2	93
3	92
4	92
5	92
6	91
7	91
8	90
9	90
10	89
11	89
12	88
13	88
14	88
15	87
16	87
17	86
18	86
19	85
20	84
21	83
22	82
23	81
24	80
25	79
26	79
27	78
28	77
29	76
30	75

	Oppressive (%)	Miserable (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	0	100
10	0	100
11	0	100
12	0	100
13	0	100
14	0	100
15	0	100
16	0	100
17	0	100
18	0	100
19	0	100
20	1	99
21	1	99
22	1	99
23	1	99
24	1	99
25	2	98
26	2	98
27	2	98
28	2	98
29	3	97
30	3	97

	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	26
19	32	26
20	32	26
21	32	26
22	32	26
23	32	26
24	32	26
25	32	26
26	32	26
27	32	26
28	32	26
29	32	26
30	32	26

	Clearer (%)	Cloudier (%)
1	7	93
2	7	93
3	7	93
4	8	92
5	9	91
6	9	91
7	10	90
8	11	89
9	11	89
10	12	88
11	12	88
12	12	88
13	12	88
14	14	86
15	14	86
16	14	86
17	14	86
18	15	85
19	15	85
20	18	82
21	18	82
22	19	81
23	20	80
24	22	78
25	24	76
26	25	75
27	27	73
28	29	71
29	30	70
30	32	68

	Rain chance (%)
1	93
2	93
3	92
4	92
5	92
6	91
7	91
8	90
9	90
10	89
11	89
12	88
13	88
14	88
15	87
16	87
17	86
18	86
19	85
20	84
21	83
22	82
23	81
24	80
25	79
26	79
27	78
28	77
29	76
30	75

	Oppressive (%)	Miserable (%)
1	0	100
2	0	100
3	0	100
4	0	100
5	0	100
6	0	100
7	0	100
8	0	100
9	0	100
10	0	100
11	0	100
12	0	100
13	0	100
14	0	100
15	0	100
16	0	100
17	0	100
18	0	100
19	0	100
20	1	99
21	1	99
22	1	99
23	1	99
24	1	99
25	2	98
26	2	98
27	2	98
28	2	98
29	3	97
30	3	97