Gombong weather in September

In September, Gombong sees average daytime highs of 29°C and overnight lows near 22°C, with 91 mm of rain across 11.3 wet days and about 12 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 13% 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 h 06 min by month's end. Set against the rest of the year, September is Gombong's 5th-clearest and 1st-windiest month. For the whole year in context, see Gombong's year-round climate.

Daytime high
29°
10th warmest
Overnight low
22°
3rd coldest
Rainfall
91 mm
11.3 wet days
Daylight
12 hours
5:38 AM – 5:35 PM
Cloud cover
67%
5th clearest
Wind
6 km/h
1st windiest
Solar energy
5.51 kWh/m²
Travel score
5.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Gombong reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922

How September really feels in Gombong

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Gombong weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°3922912.42.7
Feb30° / 23°34227.212.22.6
Mar30° / 23°31828.912.12.6
Apr30° / 24°25226.411.82.9
May30° / 23°1472011.73.9
Jun29° / 22°9514.811.64.8
Jul28° / 21°7110.611.65.9
Aug28° / 21°527.711.86.3
Sep29° / 22°9111.3125.2
Oct29° / 23°21320.212.23.9
Nov30° / 23°36527.212.32.9
Dec30° / 23°38328.812.42.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% 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 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24159
34060
44060
54060
64159
74159
84060
94060
103961
113961
123862
133862
143862
153664
163664
173565
183565
193466
203367
213268
223268
233169
243070
253070
262971
272971
282971
292872
302773

Chance of precipitation in September

Any precipitation

Gombong gets around 91 mm of rain over 11.3 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 38% and peaks near 48% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
131
231
331
432
532
632
733
833
934
1034
1135
1236
1336
1437
1537
1638
1739
1840
1940
2041
2142
2243
2343
2444
2544
2645
2746
2846
2947
3048

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1640540
2640540
3639550
4638560
5538570
6537580
7537580
8537580
9536581
10536581
11435601
12435601
13435601
14434611
15334621
16334621
17333631
18333622
19233632
20233632
21234622
22234622
23134632
24134641
25134641
26134641
27133651
28133651
29133651
30132661

Wind in September

Winds average 6 km/h in September, the windiest month of the year.

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 5:46 AM to 5:29 AM, and sunset from 5:37 PM to 5:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:465:37
211.95:465:37
311.95:455:37
411.95:445:37
511.95:445:37
611.95:435:37
711.95:435:36
811.95:425:36
911.95:425:36
1011.95:415:36
1111.95:405:36
1211.95:405:36
1311.95:395:36
1411.95:395:35
1512.05:385:35
1612.05:385:35
1712.05:375:35
1812.05:365:35
1912.05:365:35
2012.05:355:34
2112.05:355:34
2212.05:345:34
2312.05:335:34
2412.05:335:34
2512.05:325:34
2612.05:325:34
2712.05:315:33
2812.05:315:33
2912.15:305:33
3012.15:295:33

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.51 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.51 kWh/m² in September across the year — September's 5.51 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Hazard calendar for Gombong

In seasonPeak

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

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

Gombong'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 Gombong?

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

5.2
Sightseeing
3rd-best month of the year
6.5
Beach & pool
3rd-best month of the year

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

What to pack for Gombong in September

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

In September, Gombong sees daytime highs around 29°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Gombong in September

The nearest coast averages about 26°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 32 km away) is warmest in April at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Gombong in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gombong peaks around March 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 13 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeExtremeMar 10UV 15Jun 13UV 7
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr12Extreme
May8Very high
Jun7Very high
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov9Very high
Dec12Extreme

Air quality in Gombong 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 Gombong is worst in May — around 47 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1647 µg/m³Sep 1730 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb36Poor
Mar40Poor
Apr45Poor
May47Poor
Jun44Poor
Jul39Poor
Aug32Moderate
Sep30Moderate
Oct32Moderate
Nov32Moderate
Dec31Moderate
Location & terrain

Where is Gombong?

Gombong sits at 7.6°S, 109.5°E, 26 m above sea level, in Indonesia. The nearest listed city is Banyumas, 26 km away.

Topography around Gombong

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

Within 3 km, the terrain around Gombong has only modest variations in elevation — a maximum elevation change of 115 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 801 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.

The land around Gombong is covered by cropland (49%), trees (28%) and artificial surfaces (22%) within 3 km, trees (71%) and cropland (25%) within 16 km, and trees (55%) and water (27%) within 80 km.

3 km
115 m
16 km
801 m
80 km
3,396 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Banyumas 26 km · Purbalingga 29 km · Kroya 30 km · Sokaraja 30 km · Purwokerto 37 km · Kutoarjo 46 km · Baturaden 47 km · Wonosobo 51 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 Gombong (-7.6072°, 109.5142°, elevation 26 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).