Wangon weather in September

In September, Wangon sees average daytime highs of 28°C and overnight lows near 22°C, with 85 mm of rain across 11.8 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 28°C through the month. The sky is clear or mostly clear about 10% 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 Wangon's 5th-clearest and 2nd-windiest month. For the whole year in context, see Wangon's year-round climate.

Daytime high
28°
10th warmest
Overnight low
22°
3rd coldest
Rainfall
85 mm
11.8 wet days
Daylight
12 hours
5:39 AM – 5:37 PM
Cloud cover
70%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.35 kWh/m²
Travel score
5.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Wangon reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822

How September really feels in Wangon

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.

Wangon 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
Jan29° / 24°38929.112.42.8
Feb29° / 24°34227.512.22.7
Mar30° / 24°34129.212.12.8
Apr30° / 24°25726.511.83.0
May29° / 24°15720.711.74.0
Jun29° / 23°10215.511.64.8
Jul28° / 22°681111.66.1
Aug28° / 22°517.611.86.6
Sep28° / 22°8511.8125.7
Oct29° / 23°1952012.24.2
Nov29° / 24°33327.312.33.1
Dec29° / 24°3772912.42.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33565
43565
53664
63664
73565
83565
93466
103466
113466
123367
133268
143268
153169
163268
173169
183070
192971
202872
212872
222773
232773
242773
252773
262773
272674
282674
292575
302575

Chance of precipitation in September

Any precipitation

Wangon gets around 85 mm of rain over 11.8 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 40% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
131
232
333
434
534
635
736
836
937
1037
1138
1239
1339
1439
1540
1640
1741
1841
1942
2042
2142
2243
2343
2443
2544
2644
2745
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 63% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1441550
2440560
3440560
4439570
5439570
6439570
7338590
8338590
9338590
10337600
11337591
12336601
13236611
14235621
15234631
16234631
17133651
18132652
19132652
20132652
21131662
22131662
23031672
24030682
25030682
26030682
27029692
28029692
29028702
30027712

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:48 AM to 5:31 AM, and sunset from 5:39 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:485:39
211.95:475:39
311.95:475:39
411.95:465:39
511.95:465:39
611.95:455:38
711.95:455:38
811.95:445:38
911.95:435:38
1011.95:435:38
1111.95:425:38
1211.95:425:38
1311.95:415:37
1411.95:405:37
1512.05:405:37
1612.05:395:37
1712.05:395:37
1812.05:385:37
1912.05:385:36
2012.05:375:36
2112.05:365:36
2212.05:365:36
2312.05:355:36
2412.05:355:36
2512.05:345:36
2612.05:345:35
2712.05:335:35
2812.05:325:35
2912.15:325:35
3012.15:315:35

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.35 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 5.35 kWh/m² in September across the year — September's 5.35 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Wangon

In seasonPeak

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

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

Wangon'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 Wangon?

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

5.7
Sightseeing
3rd-best month of the year
6.3
Beach & pool
3rd-best month of the year

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

What to pack for Wangon in September

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

In September, Wangon sees daytime highs around 28°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Wangon 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 41 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
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Wangon 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 Wangon peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 14 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 12UV 15Jun 14UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun7High
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov9Very high
Dec12Extreme

Air quality in Wangon 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 Wangon is worst in May — around 46 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1545 µg/m³Sep 1630 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb39Poor
Mar41Poor
Apr44Poor
May46Poor
Jun43Poor
Jul37Poor
Aug31Moderate
Sep30Moderate
Oct31Moderate
Nov32Moderate
Dec33Moderate
Location & terrain

Where is Wangon?

Wangon sits at 7.5°S, 109.1°E, 32 m above sea level, in Indonesia. The nearest listed city is Purwokerto, 23 km away.

Topography around Wangon

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

Within 3 km, the terrain around Wangon has only modest variations in elevation — a maximum elevation change of 147 m around an average of 40 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 538 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.

The land around Wangon is covered by trees (51%) and cropland (31%) within 3 km, trees (74%) within 16 km, and trees (51%) and water (27%) within 80 km.

3 km
147 m
16 km
538 m
80 km
3,396 m
treesgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Purwokerto 23 km · Cilacap 24 km · Kroya 25 km · Banyumas 26 km · Sokaraja 27 km · Sidareja 29 km · Baturaden 30 km · Purbalingga 37 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 Wangon (-7.5161°, 109.0539°, elevation 32 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).