Magelang weather in September

In September, Magelang sees average daytime highs of 27°C and overnight lows near 19°C, with 102 mm of rain across 16 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 27°C through the month. The sky is clear or mostly clear about 9% 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 Magelang's 4th-clearest and 1st-windiest month. For the whole year in context, see Magelang's year-round climate.

Daytime high
27°
10th warmest
Overnight low
19°
3rd coldest
Rainfall
102 mm
16 wet days
Daylight
12 hours
5:35 AM – 5:32 PM
Cloud cover
71%
4th clearest
Wind
5 km/h
1st windiest
Solar energy
5.74 kWh/m²
Travel score
5.4
out of 10

Magelang is city in Central Java Province, Indonesia.

Density
8,014/km²
people per km²
Founded
~907 CE

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 27°C through the month.

A typical September day in Magelang reaches about 27°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 25°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)
12719
22719
32719
42719
52719
62719
72719
82719
92719
102719
112719
122719
132719
142719
152719
162719
172719
182719
192719
202719
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719

Magelang 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
Jan28° / 20°42128.712.43.4
Feb28° / 20°41227.112.23.3
Mar28° / 20°39028.812.13.3
Apr28° / 21°31226.311.83.4
May28° / 20°16520.811.74.4
Jun27° / 20°11816.211.65.3
Jul27° / 19°8513.611.65.9
Aug27° / 18°661211.86.1
Sep27° / 19°10216125.4
Oct28° / 20°22122.912.24.4
Nov28° / 20°37727.812.33.5
Dec28° / 20°39428.112.43.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23466
33466
43466
53466
63466
73466
83367
93466
103367
113268
123268
133169
143169
153169
162971
172971
182872
192872
202674
212575
222575
232476
242476
252377
262278
272278
282179
292179
302179

Chance of precipitation in September

Any precipitation

Magelang gets around 102 mm of rain over 16 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 53% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
147
248
349
449
549
649
750
850
950
1050
1150
1250
1351
1451
1551
1652
1752
1853
1954
2054
2155
2256
2357
2457
2558
2659
2760
2860
2961
3062

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 76% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1220735
2220735
3219745
4219745
5219745
6218755
7218755
8218755
9218755
10118765
11117766
12117766
13117766
14116767
15116767
16115768
17114778
18114769
190137710
200127810
210127711
220117811
230107812
240107812
25097813
26087913
27087814
28077914
29077914
30077914

Wind in September

Winds average 5 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:43 AM to 5:27 AM, and sunset from 5:35 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:435:35
211.95:435:34
311.95:425:34
411.95:425:34
511.95:415:34
611.95:405:34
711.95:405:34
811.95:395:34
911.95:395:33
1011.95:385:33
1111.95:385:33
1211.95:375:33
1311.95:365:33
1411.95:365:33
1512.05:355:32
1612.05:355:32
1712.05:345:32
1812.05:345:32
1912.05:335:32
2012.05:325:32
2112.05:325:31
2212.05:315:31
2312.05:315:31
2412.05:305:31
2512.05:295:31
2612.05:295:31
2712.05:285:31
2812.05:285:30
2912.15:275:30
3012.15:275:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.74 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 5.74 kWh/m² in September across the year — September's 5.74 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Magelang

In seasonPeak

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

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

Magelang'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 Magelang?

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

5.4
Sightseeing
3rd-best month of the year
5.5
Beach & pool
4th-best month of the year

September is a reasonable time to visit Magelang for sightseeing.

What to pack for Magelang in September

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

In September, Magelang sees daytime highs around 27°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Magelang in September

The nearest coast averages about 25°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 46 km away) is warmest in March at about 29°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index in Magelang 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 Magelang peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 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 highVery highExtremeExtremeMar 14UV 15Jun 14UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May8Very high
Jun6High
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov9Very high
Dec11Extreme

Air quality in Magelang 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 Magelang is worst in April — around 58 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (September, 34 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorApr 2158 µg/m³Sep 1134 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb46Poor
Mar54Poor
Apr58Unhealthy
May57Unhealthy
Jun51Poor
Jul42Poor
Aug35Moderate
Sep34Moderate
Oct37Poor
Nov42Poor
Dec42Poor
Location & terrain

Where is Magelang?

Magelang sits at 7.5°S, 110.2°E, 379 m above sea level, in Indonesia. The nearest listed city is Mertoyudan, 6.0 km away.

Topography around Magelang

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

Within 3 km, the terrain around Magelang has only modest variations in elevation — a maximum elevation change of 207 m around an average of 370 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,943 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,291 m.

The land around Magelang is covered by trees (44%) and artificial surfaces (37%) within 3 km, trees (71%) within 16 km, and trees (58%) within 80 km.

3 km
207 m
16 km
1,943 m
80 km
3,291 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Mertoyudan 6.0 km · Muntilan 15 km · Ambarawa 30 km · Sleman 31 km · Melati 34 km · Salatiga 34 km · Godean 34 km · Wonosobo 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 Magelang (-7.4706°, 110.2178°, elevation 379 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).