Karawang weather in September

In September, Karawang sees average daytime highs of 32°C and overnight lows near 24°C, with 59 mm of rain across 11 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-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 29% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Karawang's 4th-clearest and 7th-windiest month. For the whole year in context, see Karawang's year-round climate.

Daytime high
32°
1st warmest
Overnight low
24°
4th coldest
Rainfall
59 mm
11 wet days
Daylight
12 hours
5:46 AM – 5:44 PM
Cloud cover
58%
4th clearest
Wind
7 km/h
7th windiest
Solar energy
6.43 kWh/m²
Travel score
4.0
out of 10

Karawang is capital of Karawang Regency, Indonesia.

Density
4,989/km²
people per km²

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 32°C through the month.

A typical September day in Karawang reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°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, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224

How September really feels in Karawang

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.

Karawang weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°34329.112.32.8
Feb30° / 24°32726.912.22.7
Mar30° / 24°30029.3122.6
Apr31° / 24°23626.911.92.7
May31° / 24°13521.111.73.3
Jun31° / 24°8915.411.64.0
Jul31° / 23°6611.511.74.5
Aug31° / 23°387.811.84.6
Sep32° / 24°5911124.0
Oct32° / 24°15720.412.13.1
Nov31° / 24°27126.912.32.6
Dec30° / 24°30227.912.42.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25743
35842
45842
55743
65743
75644
85644
95545
105446
115446
125347
135347
145248
155149
165050
175050
185050
194951
204951
214852
224852
234753
244753
254753
264753
274753
284555
294456
304456

Chance of precipitation in September

Any precipitation

Karawang gets around 59 mm of rain over 11 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 37% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
135
235
335
435
535
635
735
835
935
1034
1134
1234
1334
1434
1534
1634
1734
1835
1935
2036
2137
2238
2339
2440
2541
2643
2744
2845
2946
3047

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
117812
217812
317812
417821
517821
618811
718811
818811
918811
1019801
1119801
1219801
1319792
1419792
1518802
1618802
1718793
1817803
1916813
2016804
2115814
2214815
2313825
2412835
2511836
2611836
2710846
289856
299847
309847

Wind in September

Winds average 7 km/h in September.

Across September, 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.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 5:54 AM to 5:39 AM, and sunset from 5:47 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:545:47
211.95:545:47
311.95:535:46
411.95:535:46
511.95:525:46
611.95:515:46
711.95:515:46
811.95:505:46
911.95:505:45
1011.95:495:45
1111.95:495:45
1211.95:485:45
1311.95:485:45
1412.05:475:44
1512.05:475:44
1612.05:465:44
1712.05:465:44
1812.05:455:44
1912.05:445:43
2012.05:445:43
2112.05:435:43
2212.05:435:43
2312.05:425:43
2412.05:425:43
2512.05:415:42
2612.05:415:42
2712.05:405:42
2812.05:405:42
2912.05:395:42
3012.05:395:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.43 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.82 kWh/m² to a high of 6.43 kWh/m² in September across the year — September's 6.43 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.5Intense
156.5Intense
166.5Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.4Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Karawang

In seasonPeak

None of Karawang's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Karawang sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Karawang's rainy season runs October–April, when most of the year's rain falls.

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

Is September a good time to visit Karawang?

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

4.0
Sightseeing
3rd-best month of the year
6.2
Beach & pool
3rd-best month of the year

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

What to pack for Karawang in September

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

In September, Karawang sees daytime highs around 32°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

Sea temperature near Karawang in September

The nearest coast averages about 29°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 39 km away) is warmest in May at about 30°C and coldest in February near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Karawang in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Karawang peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 14 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 17UV 14Nov 14UV 6
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct9Very high
Nov6High
Dec11Extreme

Air quality in Karawang 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 Karawang is worst in May — around 69 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyMay 1268 µg/m³Jan 2248 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb48Poor
Mar62Unhealthy
Apr68Unhealthy
May69Unhealthy
Jun65Unhealthy
Jul58Unhealthy
Aug59Unhealthy
Sep64Unhealthy
Oct68Unhealthy
Nov69Unhealthy
Dec50Poor
Location & terrain

Where is Karawang?

Karawang sits at 6.3°S, 107.3°E, 12 m above sea level, in Indonesia. The nearest listed city is Rengasdengklok, 16 km away.

Topography around Karawang

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

Within 3 km, the terrain around Karawang has only modest variations in elevation — a maximum elevation change of 25 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 125 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,001 m.

The land around Karawang is covered by artificial surfaces (53%) and cropland (31%) within 3 km, cropland (51%), trees (22%) and artificial surfaces (21%) within 16 km, and trees (33%), water (31%) and cropland (20%) within 80 km.

3 km
25 m
16 km
125 m
80 km
3,001 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Rengasdengklok 16 km · Cikarang 19 km · Cikampek 20 km · Purwakarta 31 km · Bekasi 37 km · Cileungsir 41 km · Utan 44 km · Citeureup 52 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 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 Karawang (-6.3053°, 107.3197°, elevation 12 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).