Karachi weather in September

In September, Karachi sees average daytime highs of 30°C and overnight lows near 27°C, with 11 mm of rain across 1.5 wet days and about 12.2 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 57% 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 Karachi's 10th-clearest and 6th-windiest month. For the whole year in context, see Karachi's year-round climate.

Daytime high
30°
6th warmest
Overnight low
27°
8th coldest
Rainfall
11 mm
1.5 wet days
Daylight
12 h 06 min
6:22 AM – 6:31 PM
Cloud cover
37%
10th clearest
Wind
20 km/h
6th windiest
Solar energy
5.46 kWh/m²
Travel score
6.2
out of 10

Karachi is provincial capital of Sindh, Pakistan.

Air quality
Very high
PM2.5 44.3 µg/m³ · 2019
Density
3,296/km²
people per km²
Founded
1729

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Karachi reaches about 30°C in the afternoon and slips back to 27°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

25°28°30°33°35°151015202530
Avg high (°C)Avg low (°C)
13027
23027
33027
43027
53027
63027
73027
83027
93027
103027
113027
123027
133027
143027
153027
163027
173027
183027
193027
203027
213027
223026
233026
243026
253026
263026
273126
283126
293126
303126

How September really feels in Karachi

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
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Karachi weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 17°4110.69.3
Feb25° / 18°40.711.19.2
Mar28° / 22°20.511.88.0
Apr31° / 25°10.112.66.3
May32° / 27°00.113.25.5
Jun32° / 29°60.813.55.1
Jul31° / 28°423.613.45.1
Aug30° / 27°423.112.95.8
Sep30° / 27°111.512.26.2
Oct31° / 25°20.511.46.1
Nov29° / 22°30.210.87.6
Dec25° / 18°30.410.59.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16139
26238
36238
46436
56436
66634
76733
86931
97030
107228
117426
127624
137822
148020
158218
168317
178515
188713
198812
208911
219010
22919
23928
24937
25937
26937
27946
28955
29955
30955

Chance of precipitation in September

Any precipitation

Karachi gets around 11 mm of rain over 1.5 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 5% and peaks near 10% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
110
210
310
410
510
69
79
89
98
107
117
126
136
145
155
164
174
183
193
202
212
222
232
242
252
262
272
283
293
303

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 53% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1003466
2003664
3003763
4003961
5004060
6004159
7004258
8004357
9004357
10014455
11014455
12014554
13014554
14014554
15014653
16014653
17014752
18014752
19014851
20014851
21014950
22114949
23114949
24124948
25125047
26125047
27235046
28235045
29235045
30245044

Wind in September

Winds average 20 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1120breezy
1220breezy
1320breezy
1420breezy
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3017light breeze

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 6:16 AM to 6:27 AM, and sunset from 6:47 PM to 6:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:166:47
212.56:176:46
312.56:176:45
412.46:186:44
512.46:186:43
612.46:186:42
712.46:196:41
812.36:196:39
912.36:196:38
1012.36:206:37
1112.36:206:36
1212.26:206:35
1312.26:216:34
1412.26:216:33
1512.26:226:32
1612.16:226:31
1712.16:226:29
1812.16:236:28
1912.16:236:27
2012.06:236:26
2112.06:246:25
2212.06:246:24
2312.06:256:23
2411.96:256:22
2511.96:256:21
2611.96:266:19
2711.96:266:18
2811.86:276:17
2911.86:276:16
3011.86:276:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.46 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 7.36 kWh/m² in May across the year — September's 5.46 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Karachi

In seasonPeak

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

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

Karachi sees seasonal dust haze (April–September), heaviest in July.

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

Is September a good time to visit Karachi?

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

6.2
Sightseeing
7th-best month of the year
8.5
Beach & pool
6th-best month of the year

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

What to pack for Karachi in September

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

In September, Karachi sees daytime highs around 30°C and nights near 27°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Karachi in September

The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in June at about 30°C and coldest in February near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar24Warm
Apr27Warm
May29Tropical
Jun30Tropical
Jul29Tropical
Aug28Tropical
Sep28Warm
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Karachi 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 Karachi peaks around May 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateMay 18UV 11Dec 19UV 5
UV index (midday)Level
Jan5Moderate
Feb7High
Mar9Very high
Apr9Very high
May11Extreme
Jun10Very high
Jul8Very high
Aug10Very high
Sep9Very high
Oct7Very high
Nov5Moderate
Dec5Moderate

Air quality in Karachi 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 Karachi is worst in January — around 63 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (September, 30 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Karachi's WHO annual average of 44.3 µg/m³.

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorModeratePoorUnhealthyJan 1063 µg/m³Sep 1531 µg/m³
PM2.5 (µg/m³)Level
Jan63Unhealthy
Feb54Poor
Mar40Poor
Apr32Moderate
May34Moderate
Jun45Poor
Jul42Poor
Aug35Moderate
Sep30Moderate
Oct37Poor
Nov57Unhealthy
Dec62Unhealthy
Location & terrain

Where is Karachi?

Karachi sits at 24.9°N, 67.0°E, 8 m above sea level, in Pakistan. The nearest listed city is Jaisalmer, 452 km away.

JaisalmerJālqSarāvānPīshīnQuettaJodhpurChabaharQaşr-e Qand

Topography around Karachi

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

Within 3 km, the terrain around Karachi has only modest variations in elevation — a maximum elevation change of 34 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 171 m; within 80 km, large variations in elevation — a maximum elevation change of 1,057 m.

The land around Karachi is covered by artificial surfaces (83%) within 3 km, artificial surfaces (43%) and water (30%) within 16 km, and water (41%) and bare terrain (29%) within 80 km.

3 km
34 m
16 km
171 m
80 km
1,057 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Jaisalmer 452 km · Jālq 526 km · Sarāvān 544 km · Pīshīn 545 km · Quetta 592 km · Jodhpur 621 km · Chabahar 643 km · Qaşr-e Qand 646 km

Pakistan travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / D / G / M
230 V · 50 Hz
Prices
≈ 24% of US
price level, 2025
GDP per capita
$1,596
2025
Happiness
4.9 / 10
World Happiness, 2025
Safe drinking water
45%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
13
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 493
Religion
Muslim 96%Hindu 2%Christian 1%

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 Karachi (24.8608°, 67.0104°, 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).