Slavonski Brod weather in September

In September, Slavonski Brod sees average daytime highs of 23°C and overnight lows near 12°C, with 76 mm of rain across 9.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-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 38% 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 Slavonski Brod's 3rd-clearest and 9th-windiest month. For the whole year in context, see Slavonski Brod's year-round climate.

Daytime high
23°
4th warmest
Overnight low
12°
9th coldest
Rainfall
76 mm
9.3 wet days
Daylight
12 h 18 min
5:33 AM – 5:52 PM
Cloud cover
53%
3rd clearest
Wind
7 km/h
9th windiest
Solar energy
3.85 kWh/m²
Travel score
6.9
out of 10
Air quality
High
PM2.5 30.2 µg/m³ · 2019

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 Slavonski Brod reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 17°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)
12514
22514
32514
42514
52514
62414
72413
82413
92413
102413
112413
122313
132313
142312
152312
162312
172312
182212
192212
202212
212211
222211
232211
242111
252111
262111
272111
282110
292110
302110

How September really feels in Slavonski Brod

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.

Slavonski Brod weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°518.84.290.0
Feb / -1°539.33.810.10.9
Mar12° / 5910.12.111.63.4
Apr18° / 6610.90.413.25.4
May22° / 12°8412.4014.66.3
Jun26° / 15°8211.6015.46.6
Jul28° / 17°7310.5015.16.3
Aug28° / 16°648.7013.96.5
Sep23° / 12°769.3012.36.9
Oct17° / 608.3010.75.7
Nov11° / 639.41.89.32.6
Dec / -1°619.63.38.60.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 44%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36040
46040
55941
65941
75941
85842
95842
105743
115644
125644
135644
145545
155644
165545
175545
185545
195446
205446
215347
225347
235347
245347
255347
265347
275347
285248
295248
305248

Chance of precipitation in September

Any precipitation

Slavonski Brod gets around 76 mm of rain over 9.3 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 31% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
130
230
330
430
530
630
731
831
931
1031
1131
1231
1331
1431
1532
1632
1732
1832
1932
2032
2132
2232
2331
2431
2531
2630
2730
2830
2929
3029

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 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13733263
23933253
34133242
44233232
54333222
64434211
74534201
84635191
94735181
104835171
114935160
125134150
135234140
145334130
155433130
165632120
175732110
185931100
19613090
20632890
21652780
22672670
23682570
24702460
25702460
26722350
27722350
28722350
29742240
30742240

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 5:14 AM to 5:51 AM, and sunset from 6:21 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:146:21
213.15:166:19
313.05:176:17
413.05:186:15
512.95:196:13
612.85:216:11
712.85:226:09
812.75:236:07
912.75:246:05
1012.65:256:03
1112.65:276:02
1212.55:286:00
1312.55:295:58
1412.45:305:56
1512.45:325:54
1612.35:335:52
1712.35:345:50
1812.25:355:48
1912.15:375:46
2012.15:385:44
2112.05:395:42
2212.05:405:40
2311.95:425:38
2411.95:435:36
2511.85:445:34
2611.85:465:32
2711.75:475:30
2811.75:485:28
2911.65:495:26
3011.65:515:24

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.85 kWh/m².

For context, solar energy here swings from a low near 1.14 kWh/m² to a high of 6.02 kWh/m² in July across the year — September's 3.85 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
134.0Moderate
143.9Moderate
153.9Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Slavonski Brod?

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

6.9
Sightseeing
1st-best month of the year
5.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Slavonski Brod for sightseeing.

What to pack for Slavonski Brod in September

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

In September, Slavonski Brod sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Slavonski Brod 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 Slavonski Brod peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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 highModerateLowJul 17UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar5Moderate
Apr7High
May7High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Slavonski Brod 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 Slavonski Brod is worst in April — around 38 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (December, 22 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Slavonski Brod's WHO annual average of 30.2 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateApr 1437 µg/m³Dec 1522 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb28Moderate
Mar36Poor
Apr38Poor
May35Moderate
Jun36Poor
Jul31Moderate
Aug33Moderate
Sep26Moderate
Oct26Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Slavonski Brod?

Slavonski Brod sits at 45.2°N, 18.0°E, 83 m above sea level, in Croatia. The nearest listed city is Požega, 33 km away.

PožegaĐakovoGradačacDobojGračanicaTeslicVinkovciOsijek

Topography around Slavonski Brod

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

Within 3 km, the terrain around Slavonski Brod has only modest variations in elevation — a maximum elevation change of 83 m around an average of 94 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 394 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,336 m.

The land around Slavonski Brod is covered by artificial surfaces (34%), grassland (31%) and trees (22%) within 3 km, trees (58%) and cropland (22%) within 16 km, and trees (57%) and cropland (31%) within 80 km.

3 km
83 m
16 km
394 m
80 km
1,336 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Požega 33 km · Đakovo 35 km · Gradačac 45 km · Doboj 48 km · Gračanica 56 km · Teslic 63 km · Vinkovci 63 km · Osijek 68 km

Croatia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 53% of US
price level, 2025
GDP per capita
$27,104
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
87%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
7.9
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 617
Religion
Roman Catholic 79%other Christian 5%none or atheist 5%Orthodox 3%

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 Slavonski Brod (45.1616°, 18.0163°, elevation 83 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).