Barisal weather in September

In September, Barisal sees average daytime highs of 31°C and overnight lows near 26°C, with 262 mm of rain across 26.3 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 31°C through the month. The sky is clear or mostly clear about 7% 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 Barisal's 9th-clearest and 6th-windiest month. For the whole year in context, see Barisal's year-round climate.

Daytime high: 31°; 5th warmest
Overnight low: 26°; 9th coldest
Rainfall: 262 mm; 26.3 wet days
Daylight: 12 h 06 min; 5:49 AM – 5:57 PM
Cloud cover: 84%; 9th clearest
Wind: 9 km/h; 6th windiest
Solar energy: 3.96 kWh/m²
Travel score: 2.5; out of 10

Barisal is city in Bangladesh.

Air quality: Elevated; PM2.5 21.8 µg/m³ · 2018
Founded: 2001

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

← August Barisal 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 31°C through the month.

A typical September day in Barisal reaches about 31°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)	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31	31
Avg low (°C)	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26	26

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

How September really feels in Barisal

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.

Barisal 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°	7	1.1	10.8	9.1
Feb	28° / 17°	18	2.7	11.2	7.5
Mar	32° / 22°	40	5	11.8	4.7
Apr	34° / 25°	127	11.1	12.5	3.2
May	33° / 26°	227	17.2	13.1	2.9
Jun	32° / 27°	361	25.6	13.4	2.4
Jul	31° / 27°	366	29.9	13.3	2.3
Aug	31° / 27°	320	29.2	12.8	2.3
Sep	31° / 26°	262	26.3	12.1	2.5
Oct	31° / 25°	153	14.6	11.5	4.2
Nov	29° / 20°	45	2.3	10.9	7.2
Dec	26° / 16°	8	1	10.6	8.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 8% of September, with mostly cloudy or overcast conditions the remaining 85%. 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 (%)	5	5	5	5	7	7	7	7	10	10	10	12	12	12	13	14	15	15	15	17	17	19	21	21	23	24	26	28	30	30
Cloudier (%)	95	95	95	95	93	93	93	93	90	90	90	88	88	88	87	86	85	85	85	83	83	81	79	79	77	76	74	72	70	70

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	7	93
6	7	93
7	7	93
8	7	93
9	10	90
10	10	90
11	10	90
12	12	88
13	12	88
14	12	88
15	13	87
16	14	86
17	15	85
18	15	85
19	15	85
20	17	83
21	17	83
22	19	81
23	21	79
24	21	79
25	23	77
26	24	76
27	26	74
28	28	72
29	30	70
30	30	70

Chance of precipitation in September

Any precipitation

Barisal gets around 262 mm of rain over 26.3 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 88% 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	93	93	93	92	92	92	92	91	91	91	90	90	90	90	89	89	88	87	86	85	84	83	82	81	80	79	78	77

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

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	8	8	8	8	8	8	8	7	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	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	7	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 5:44 AM to 5:53 AM, and sunset from 6:12 PM to 5:42 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)	5:44	5:45	5:45	5:45	5:46	5:46	5:46	5:47	5:47	5:47	5:47	5:48	5:48	5:48	5:49	5:49	5:49	5:50	5:50	5:50	5:50	5:51	5:51	5:51	5:52	5:52	5:52	5:53	5:53	5:53
Sunset (PM)	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	5:51	5:50	5:49	5:48	5:47	5:46	5:45	5:44	5:43	5:42

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:44	6:12
2	12.4	5:45	6:11
3	12.4	5:45	6:10
4	12.4	5:45	6:09
5	12.4	5:46	6:08
6	12.4	5:46	6:07
7	12.3	5:46	6:06
8	12.3	5:47	6:05
9	12.3	5:47	6:04
10	12.3	5:47	6:03
11	12.2	5:47	6:02
12	12.2	5:48	6:01
13	12.2	5:48	6:00
14	12.2	5:48	5:59
15	12.2	5:49	5:58
16	12.1	5:49	5:57
17	12.1	5:49	5:56
18	12.1	5:50	5:55
19	12.1	5:50	5:54
20	12.0	5:50	5:53
21	12.0	5:50	5:51
22	12.0	5:51	5:50
23	12.0	5:51	5:49
24	11.9	5:51	5:48
25	11.9	5:52	5:47
26	11.9	5:52	5:46
27	11.9	5:52	5:45
28	11.9	5:53	5:44
29	11.8	5:53	5:43
30	11.8	5:53	5:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.96 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 5.87 kWh/m² in March across the year — September's 3.96 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)	4.0	4.0	4.0	4.0	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	4.0	4.0	4.1	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	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.0	Moderate
2	4.0	Moderate
3	4.0	Moderate
4	4.0	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	4.0	Moderate
18	4.0	Moderate
19	4.0	Moderate
20	4.0	Moderate
21	4.0	Moderate
22	4.0	Moderate
23	4.0	Bright
24	4.0	Bright
25	4.0	Bright
26	4.0	Bright
27	4.0	Bright
28	4.1	Bright
29	4.1	Bright
30	4.1	Bright

Planning a trip in September

Hazard calendar for Barisal

In seasonPeak

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

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

Barisal'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 Barisal?

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 Barisal.

What to pack for Barisal in September

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

In September, Barisal sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

UV index in Barisal in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Barisal 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	9	7	10	8	13	11	9	6	5	5
Level	Moderate	High	Very high	Very high	Very high	Very high	Extreme	Extreme	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	5	Moderate
Feb	5	High
Mar	9	Very high
Apr	7	Very high
May	10	Very high
Jun	8	Very high
Jul	13	Extreme
Aug	11	Extreme
Sep	9	Very high
Oct	6	High
Nov	5	Moderate
Dec	5	Moderate

Air quality in Barisal 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 Barisal is worst in January — around 47 µg/m³ PM2.5 (poor), about 6.1× the cleanest month (July, 8 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Barisal's WHO annual average of 21.8 µg/m³.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	47	33	22	14	11	10	8	10	10	19	34	43
Level	Poor	Moderate	Moderate	Moderate	Good	Good	Good	Good	Good	Moderate	Moderate	Poor

	PM2.5 (µg/m³)	Level
Jan	47	Poor
Feb	33	Moderate
Mar	22	Moderate
Apr	14	Moderate
May	11	Good
Jun	10	Good
Jul	8	Good
Aug	10	Good
Sep	10	Good
Oct	19	Moderate
Nov	34	Moderate
Dec	43	Poor

Location & terrain

Where is Barisal?

Barisal sits at 22.7°N, 90.4°E, 10 m above sea level, in Bangladesh. The nearest listed city is Bagerhat, 60 km away.

Topography around Barisal

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

Within 3 km, the terrain around Barisal 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 20 m; within 80 km, only modest variations in elevation — a maximum elevation change of 27 m.

The land around Barisal is covered by trees (49%) and artificial surfaces (24%) within 3 km, trees (49%) and cropland (35%) within 16 km, and cropland (43%) and trees (38%) within 80 km.

3 km

15 m

trees 49%

16 km

20 m

trees 49%

80 km

27 m

cropland 43%

treesgrasslandcroplandartificial surfacesbare terrainwatermangroves

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

September weather nearby: Bagerhat 60 km · Khulna 83 km · Dhaka 112 km · Jessore 129 km · Chittagong 156 km · Kolkata 207 km · Cox's Bazar 220 km · Mymensingh 228 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 Barisal (22.705°, 90.3701°, elevation 10 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	31	26
2	31	26
3	31	26
4	31	26
5	31	26
6	31	26
7	31	26
8	31	26
9	31	26
10	31	26
11	31	26
12	31	26
13	31	26
14	31	26
15	31	26
16	31	26
17	31	26
18	31	26
19	31	26
20	31	26
21	31	26
22	31	26
23	31	26
24	31	26
25	31	26
26	31	26
27	31	26
28	31	26
29	31	26
30	31	26

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	7	93
6	7	93
7	7	93
8	7	93
9	10	90
10	10	90
11	10	90
12	12	88
13	12	88
14	12	88
15	13	87
16	14	86
17	15	85
18	15	85
19	15	85
20	17	83
21	17	83
22	19	81
23	21	79
24	21	79
25	23	77
26	24	76
27	26	74
28	28	72
29	30	70
30	30	70

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

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

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	7	93
6	7	93
7	7	93
8	7	93
9	10	90
10	10	90
11	10	90
12	12	88
13	12	88
14	12	88
15	13	87
16	14	86
17	15	85
18	15	85
19	15	85
20	17	83
21	17	83
22	19	81
23	21	79
24	21	79
25	23	77
26	24	76
27	26	74
28	28	72
29	30	70
30	30	70

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

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

	Clearer (%)	Cloudier (%)
1	5	95
2	5	95
3	5	95
4	5	95
5	7	93
6	7	93
7	7	93
8	7	93
9	10	90
10	10	90
11	10	90
12	12	88
13	12	88
14	12	88
15	13	87
16	14	86
17	15	85
18	15	85
19	15	85
20	17	83
21	17	83
22	19	81
23	21	79
24	21	79
25	23	77
26	24	76
27	26	74
28	28	72
29	30	70
30	30	70

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

	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