Celje weather in October

In October, Celje sees average daytime highs of 15°C and overnight lows near 7°C, with 88 mm of precipitation across 9.1 wet days and about 10.7 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 12°C by the end. The sky is clear or mostly clear about 26% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 30 min at the start of October to 9 h 54 min by month's end. Set against the rest of the year, October is Celje's 6th-clearest and 6th-windiest month. For the whole year in context, see Celje's year-round climate.

Daytime high
15°
7th warmest
Overnight low
7th coldest
Precipitation
88 mm
9.1 wet days
Daylight
10 h 42 min
6:24 AM – 5:04 PM
Cloud cover
63%
6th clearest
Wind
7 km/h
6th windiest
Solar energy
2.3 kWh/m²
Travel score
4.5
out of 10

Celje is city in Slovenia.

Air quality
Good
PM10 27.4 µg/m³ · 2019
Density
1,676/km²
people per km²
Founded
1451

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 17°C in the first days to 12°C by the end.

A typical October day in Celje reaches about 15°C in the afternoon and slips back to 7°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 20°C. Set against its neighbours, October runs about 5°C cooler than September and about 6°C warmer than November.

10°20°151015202531
Avg high (°C)Avg low (°C)
1189
2179
3179
4179
5178
6178
7168
8168
9168
10168
11167
12157
13157
14157
15157
16157
17146
18146
19146
20146
21146
22146
23136
24135
25135
26135
27135
28135
29125
30125
31125

How October really feels in Celje

Once humidity and wind are folded in, October 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

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

Celje weather by month

How October compares with the rest of the year at a glance. October is the 7th-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°417.24.38.80.0
Feb / -2°537.44.3100.4
Mar11° / 639.93.211.62.6
Apr15° / 7611.40.813.34.4
May20° / 10°9513014.75.8
Jun23° / 14°10414015.56.3
Jul25° / 15°10513.3015.26.4
Aug25° / 15°10112.10146.6
Sep20° / 11°10311.2012.36.1
Oct15° / 889.10.310.74.5
Nov / 869.82.39.21.6
Dec / -2°668.94.58.50.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 17% of October, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54555
64555
74555
84555
94555
104555
114555
124654
134654
144654
154654
164555
174555
184555
194555
204456
214357
224357
234357
244258
254258
264159
274060
283961
293862
303763
313763

Chance of precipitation in October

Any precipitationSnow

Celje gets around 88 mm of rain and snow over 9.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 29% and peaks near 32% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1320
2320
3320
4320
5320
6320
7310
8310
9300
10300
11290
12290
13280
14280
15281
16271
17271
18271
19271
20271
21271
22272
23282
24282
25282
26292
27292
28292
29302
30302
31312

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
18416
28515
38515
48515
58614
68713
78713
88812
98911
109010
11919
12928
13937
14937
15946
16955
17964
18964
19964
20973
21973
22973
23973
24982
25982
26982
27982
28982
29982
30982
31991

Wind in October

Winds average 7 km/h in October.

Across October, 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.

0246810151015202531
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
317calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 30 min at the start of October to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over October. Sunrise moves from 6:03 AM to 6:46 AM, and sunset from 5:32 PM to 4:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:035:32
211.46:055:30
311.46:065:28
411.36:085:26
511.36:095:24
611.26:105:23
711.16:125:21
811.16:135:19
911.06:145:17
1011.06:165:15
1110.96:175:13
1210.96:195:11
1310.86:205:09
1410.86:215:07
1510.76:235:06
1610.76:245:04
1710.66:265:02
1810.66:275:00
1910.56:294:58
2010.46:304:57
2110.46:314:55
2210.36:334:53
2310.36:344:52
2410.26:364:50
2510.26:374:48
2610.16:394:47
2710.16:404:45
2810.06:424:44
2910.06:434:42
309.96:444:41
319.96:464:39

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.3 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 5.72 kWh/m² in June across the year — October's 2.3 kWh/m² falls in the middle.

0123151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.8Moderate
32.8Moderate
42.7Moderate
52.7Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.0Moderate
252.0Moderate
262.0Dim
271.9Dim
281.9Dim
291.9Dim
301.8Dim
311.8Dim
Planning a trip in October

Is October a good time to visit Celje?

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

4.5
Sightseeing
6th-best month of the year
0.4
Beach & pool
7th-best month of the year

October is a reasonable time to visit Celje for sightseeing.

What to pack for Celje in October

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

In October, Celje sees daytime highs around 15°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Celje in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Celje peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr7High
May7High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Celje in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Celje is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 917 µg/m³Sep 2012 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov12Good
Dec14Moderate
Location & terrain

Where is Celje?

Celje sits at 46.2°N, 15.3°E, 240 m above sea level, in Slovenia. The nearest listed city is Velenje, 18 km away.

VelenjeTrbovljeMariborNovo MestoPtujŽumberakSamoborZaprešić

Topography around Celje

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

Within 3 km, the terrain around Celje has significant variations in elevation — a maximum elevation change of 368 m around an average of 283 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 915 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,391 m.

The land around Celje is covered by trees (42%), artificial surfaces (25%) and grassland (24%) within 3 km, trees (62%) and grassland (27%) within 16 km, and trees (70%) within 80 km.

3 km
368 m
16 km
915 m
80 km
2,391 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Velenje 18 km · Trbovlje 18 km · Maribor 47 km · Novo Mesto 48 km · Ptuj 51 km · Žumberak 53 km · Samobor 59 km · Zaprešić 59 km

Slovenia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 63% of US
price level, 2025
GDP per capita
$37,376
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Catholic 69%atheist 14%Orthodox 4%non-believer/agnostic 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 Celje (46.2309°, 15.2604°, elevation 240 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).