Indramayu weather in September

In September, Indramayu sees average daytime highs of 33°C and overnight lows near 26°C, with 20 mm of rain across 2.9 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 33°C through the month. The sky is clear or mostly clear about 43% 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 hours by month's end. Set against the rest of the year, September is Indramayu's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Indramayu's year-round climate.

Daytime high
33°
1st warmest
Overnight low
26°
8th coldest
Rainfall
20 mm
2.9 wet days
Daylight
12 hours
5:42 AM – 5:40 PM
Cloud cover
50%
3rd clearest
Wind
13 km/h
3rd windiest
Solar energy
6.7 kWh/m²
Travel score
4.3
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 Indramayu reaches about 33°C in the afternoon and slips back to 26°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 34°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)
13226
23226
33226
43226
53226
63226
73226
83326
93326
103326
113326
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326

How September really feels in Indramayu

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.

Indramayu 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° / 25°26628.612.32.8
Feb30° / 25°24726.312.22.7
Mar31° / 26°22328.2122.7
Apr31° / 26°18125.311.92.8
May32° / 26°9916.811.73.6
Jun32° / 26°6410.911.64.2
Jul32° / 25°33611.74.7
Aug32° / 25°102.711.84.8
Sep33° / 26°202.9124.3
Oct33° / 26°669.712.13.6
Nov32° / 26°18322.112.32.8
Dec31° / 26°25527.712.42.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26634
36634
46634
56535
66535
76535
86337
96337
106238
116139
126040
136040
145941
155842
165842
175842
185743
195743
205743
215743
225644
235644
245644
255644
265545
275446
285446
295347
305248

Chance of precipitation in September

Any precipitation

Indramayu gets around 20 mm of rain over 2.9 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 10% and peaks near 15% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
110
210
39
49
59
69
79
89
99
109
119
129
139
149
159
169
179
189
1910
2010
2110
2211
2311
2411
2512
2612
2713
2814
2914
3015

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 95% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1647433
2647443
3646443
4746443
5746443
6746443
7747443
8747433
9747433
10747433
11747433
12747433
13747433
14647434
15646444
16646444
17646444
18546445
19546445
20545446
21445446
22445447
23445447
24345448
25344448
26344449
27244459
282434510
292424610
302424610

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712calm
2812calm
2912calm
3012calm

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 5:50 AM to 5:35 AM, and sunset from 5:43 PM to 5:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:505:43
211.95:505:43
311.95:495:42
411.95:495:42
511.95:485:42
611.95:485:42
711.95:475:42
811.95:465:42
911.95:465:41
1011.95:455:41
1111.95:455:41
1211.95:445:41
1311.95:445:41
1412.05:435:40
1512.05:435:40
1612.05:425:40
1712.05:425:40
1812.05:415:40
1912.05:405:39
2012.05:405:39
2112.05:395:39
2212.05:395:39
2312.05:385:39
2412.05:385:39
2512.05:375:38
2612.05:375:38
2712.05:365:38
2812.05:365:38
2912.05:355:38
3012.05:355:38

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.7 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.8 kWh/m² to a high of 6.7 kWh/m² in September across the year — September's 6.7 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.6Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.7Intense
176.7Intense
186.7Intense
196.7Intense
206.7Intense
216.7Intense
226.7Intense
236.7Intense
246.7Intense
256.7Intense
266.7Intense
276.7Intense
286.7Intense
296.7Intense
306.7Intense
Planning a trip in September

Hazard calendar for Indramayu

In seasonPeak

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

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

Indramayu's monsoon runs November–April, 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 Indramayu?

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

4.3
Sightseeing
3rd-best month of the year
7.4
Beach & pool
2nd-best month of the year

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

What to pack for Indramayu in September

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

In September, Indramayu sees daytime highs around 33°C and nights near 26°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Indramayu 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 offshore 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
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Indramayu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Indramayu peaks around March 16 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highExtremeExtremeMar 16UV 13Nov 16UV 7
UV index (midday)Level
Jan9Very high
Feb12Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov6High
Dec12Extreme

Air quality in Indramayu 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 Indramayu is worst in October — around 40 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorOct 2040 µg/m³Feb 1131 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb30Moderate
Mar37Poor
Apr37Poor
May36Poor
Jun34Moderate
Jul30Moderate
Aug32Moderate
Sep36Poor
Oct40Poor
Nov38Poor
Dec36Poor
Location & terrain

Where is Indramayu?

Indramayu sits at 6.3°S, 108.3°E, 5 m above sea level, in Indonesia. The nearest listed city is Jatibarang, 16 km away.

Topography around Indramayu

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

Within 3 km, the terrain around Indramayu has only modest variations in elevation — a maximum elevation change of 10 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 19 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,025 m.

The land around Indramayu is covered by cropland (45%) and artificial surfaces (31%) within 3 km, water (52%) and cropland (30%) within 16 km, and water (54%) and cropland (22%) within 80 km.

3 km
10 m
16 km
19 m
80 km
3,025 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
September weather nearby: Jatibarang 16 km · Karangampel 21 km · Arjawinangun 37 km · Palimanan 44 km · Klangenan 45 km · Plumbon 45 km · Jatiwangi 46 km · Weru 47 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 Indramayu (-6.3264°, 108.32°, elevation 5 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).