Subang weather in September

In September, Subang sees average daytime highs of 33°C and overnight lows near 23°C, with 54 mm of rain across 8.5 wet days and about 12 hours of daylight. It is the 1st-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Subang's 4th-clearest and 4th-windiest month. For the whole year in context, see Subang's year-round climate.

Daytime high
33°
1st warmest
Overnight low
23°
4th coldest
Rainfall
54 mm
8.5 wet days
Daylight
12 hours
5:44 AM – 5:42 PM
Cloud cover
58%
4th clearest
Wind
6 km/h
4th windiest
Solar energy
6.34 kWh/m²
Travel score
3.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical September day in Subang reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°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)
13323
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283323
293323
303323

How September really feels in Subang

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.

Subang weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°33829.712.32.7
Feb30° / 23°32027.112.22.7
Mar30° / 24°33529.9122.5
Apr31° / 24°26227.611.92.6
May31° / 24°14120.611.73.3
Jun31° / 23°8213.511.64.0
Jul32° / 22°538.611.74.3
Aug33° / 23°336.511.84.1
Sep33° / 23°548.5123.5
Oct33° / 24°1621812.12.9
Nov31° / 24°30726.912.32.4
Dec31° / 24°3362912.42.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% 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
25842
35842
45842
55842
65842
75743
85743
95644
105545
115545
125347
135347
145248
155149
165050
174951
184852
194852
204753
214654
224555
234555
244555
254456
264456
274456
284357
294357
304258

Chance of precipitation in September

Any precipitation

Subang gets around 54 mm of rain over 8.5 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 29% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
128
229
329
428
528
628
728
827
927
1027
1126
1226
1326
1426
1526
1626
1726
1827
1927
2028
2129
2229
2330
2431
2532
2634
2735
2836
2938
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10947440
20946440
30946440
40946440
50946440
61946430
711047430
811047430
911047420
1011047420
1111047420
1211048410
1311048411
1401048411
1501048411
1601047411
170947421
180947421
190947432
200847432
210746442
220746452
230645462
240645473
250544483
260543493
270442513
280441523
290440533
300439543

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over September. Sunrise moves from 5:52 AM to 5:37 AM, and sunset from 5:45 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:525:45
211.95:525:45
311.95:515:45
411.95:515:44
511.95:505:44
611.95:505:44
711.95:495:44
811.95:495:44
911.95:485:44
1011.95:485:43
1111.95:475:43
1211.95:475:43
1311.95:465:43
1412.05:455:43
1512.05:455:42
1612.05:445:42
1712.05:445:42
1812.05:435:42
1912.05:435:42
2012.05:425:41
2112.05:425:41
2212.05:415:41
2312.05:405:41
2412.05:405:41
2512.05:395:41
2612.05:395:40
2712.05:385:40
2812.05:385:40
2912.05:375:40
3012.15:375:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.34 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.61 kWh/m² to a high of 6.34 kWh/m² in September across the year — September's 6.34 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Subang

In seasonPeak

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

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

Subang'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 Subang?

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

3.5
Sightseeing
4th-best month of the year
6.3
Beach & pool
3rd-best month of the year

September is a weaker month for outdoor sightseeing in Subang. The water and warmth also suit a beach or pool day.

What to pack for Subang in September

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

In September, Subang sees daytime highs around 33°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

Sea temperature near Subang 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 51 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 Subang 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 Subang peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 15 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 13Nov 15UV 6
UV index (midday)Level
Jan10Very high
Feb10Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul9Very high
Aug10Very high
Sep11Extreme
Oct10Very high
Nov6High
Dec12Extreme

Air quality in Subang 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 Subang is worst in May — around 72 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMay 1672 µg/m³Sep 1253 µg/m³
PM2.5 (µg/m³)Level
Jan61Unhealthy
Feb60Unhealthy
Mar69Unhealthy
Apr69Unhealthy
May72Unhealthy
Jun69Unhealthy
Jul60Unhealthy
Aug54Poor
Sep53Poor
Oct55Unhealthy
Nov57Unhealthy
Dec60Unhealthy
Location & terrain

Where is Subang?

Subang sits at 6.6°S, 107.8°E, 96 m above sea level, in Indonesia. The nearest listed city is Lembang, 31 km away.

Topography around Subang

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

Within 3 km, the terrain around Subang has only modest variations in elevation — a maximum elevation change of 182 m around an average of 107 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 691 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,025 m.

The land around Subang is covered by trees (54%) and artificial surfaces (28%) within 3 km, trees (62%) and cropland (28%) within 16 km, and trees (40%), cropland (29%) and water (20%) within 80 km.

3 km
182 m
16 km
691 m
80 km
3,025 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Lembang 31 km · Pamanukan 32 km · Purwakarta 35 km · Sumedang Utara 36 km · Sumedang 37 km · Cikampek 37 km · Cileunyi 41 km · Cimahi 41 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 Subang (-6.57°, 107.7567°, elevation 96 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).