Čačak weather in September

In September, Čačak sees average daytime highs of 23°C and overnight lows near 11°C, with 56 mm of rain across 8.2 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Čačak's 3rd-clearest and 9th-windiest month. For the whole year in context, see Čačak's year-round climate.

Daytime high
23°
4th warmest
Overnight low
11°
9th coldest
Rainfall
56 mm
8.2 wet days
Daylight
12 h 18 min
5:24 AM – 5:42 PM
Cloud cover
52%
3rd clearest
Wind
7 km/h
9th windiest
Solar energy
3.97 kWh/m²
Travel score
7.1
out of 10

Čačak is city in Serbia.

Density
184/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 21°C by the end.

A typical September day in Čačak reaches about 23°C in the afternoon and slips back to 11°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 29°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12513
22512
32512
42512
52512
62412
72412
82412
92411
102411
112411
122311
132311
142311
152311
162311
172211
182210
192210
202210
212210
222210
232110
242110
252110
26219
27219
28219
29209
30209

How September really feels in Čačak

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.

Čačak weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°5010.36.99.10.0
Feb / -2°5110.56.410.20.7
Mar12° / 6811.64.111.63.0
Apr17° / 7011.90.913.25.0
May21° / 10°8913.1014.56.1
Jun25° / 13°8312.4015.26.5
Jul27° / 15°7710.6014.96.6
Aug28° / 14°548.6013.86.8
Sep23° / 11°568.2012.37.1
Oct17° / 5380.210.85.8
Nov11° / 508.82.49.52.8
Dec / -2°5610.868.80.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16535
26436
36238
46238
56238
66040
76040
85941
95941
105842
115743
125842
135743
145743
155743
165644
175644
185545
195545
205446
215446
225347
235347
245347
255347
265248
275248
285248
295248
305248

Chance of precipitation in September

Any precipitation

Čačak gets around 56 mm of rain over 8.2 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 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
126
226
325
425
525
625
725
825
925
1025
1126
1226
1326
1427
1527
1628
1728
1829
1929
2029
2130
2230
2330
2430
2530
2629
2729
2828
2928
3028

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14535191
24735180
34835160
45035150
55135140
65335120
75435110
85535100
9573490
10583480
11593470
12603460
13623350
14633250
15643240
16653140
17673030
18682930
19702820
20722620
21732520
22752410
23762310
24772210
25782110
26792010
27801910
28811810
29831700
30831700

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over September. Sunrise moves from 5:06 AM to 5:41 AM, and sunset from 6:10 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:066:10
213.05:086:08
313.05:096:06
412.95:106:05
512.95:116:03
612.85:126:01
712.85:135:59
812.75:155:57
912.75:165:55
1012.65:175:53
1112.65:185:51
1212.55:195:50
1312.55:205:48
1412.45:225:46
1512.35:235:44
1612.35:245:42
1712.25:255:40
1812.25:265:38
1912.15:285:36
2012.15:295:34
2112.05:305:32
2212.05:315:30
2311.95:325:28
2411.95:335:26
2511.85:355:25
2611.85:365:23
2711.75:375:21
2811.75:385:19
2911.65:395:17
3011.65:415:15

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.97 kWh/m².

For context, solar energy here swings from a low near 1.31 kWh/m² to a high of 5.94 kWh/m² in June across the year — September's 3.97 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.3Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.1Bright
144.1Bright
154.0Bright
164.0Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Čačak?

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

7.1
Sightseeing
1st-best month of the year
5.3
Beach & pool
4th-best month of the year

September is one of the better times to visit Čačak for general sightseeing.

What to pack for Čačak in September

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

In September, Čačak sees daytime highs around 23°C and nights near 11°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in Čačak in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Čačak peaks around July 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr7Very high
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Čačak 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 Čačak is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 10 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 2116 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar15Moderate
Apr16Moderate
May16Moderate
Jun16Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Čačak?

Čačak sits at 43.9°N, 20.3°E, 241 m above sea level, in Serbia. The nearest listed city is Gornji Milanovac, 17 km away.

KraljevoUžiceKragujevacAranđelovacZlatiborLazarevacValjevo

Topography around Čačak

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

Within 3 km, the terrain around Čačak has only modest variations in elevation — a maximum elevation change of 185 m around an average of 260 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 776 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,002 m.

The land around Čačak is covered by artificial surfaces (39%), trees (24%) and grassland (23%) within 3 km, trees (53%) and grassland (30%) within 16 km, and trees (64%) and grassland (23%) within 80 km.

3 km
185 m
16 km
776 m
80 km
2,002 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Gornji Milanovac 17 km · Kraljevo 33 km · Užice 40 km · Kragujevac 47 km · Aranđelovac 49 km · Zlatibor 55 km · Lazarevac 55 km · Valjevo 56 km

Serbia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 45% of US
price level, 2025
GDP per capita
$15,262
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
75%
of population, 2024
Homicide rate
1.3
per 100k, 2023
Road deaths
7.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 579
Religion
Serbian Orthodox 81%unknown 5%Islam 4%Catholic 4%

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 Čačak (43.8914°, 20.3497°, elevation 241 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. 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).