Žumberak weather in December

In December, Žumberak sees average daytime highs of 5°C and overnight lows near -1°C, with 77 mm of precipitation across 9.9 wet days and about 8.5 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 6°C in the first days to 4°C by the end. The sky is clear or mostly clear about 21% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 42 min at the start of December to 8 h 30 min by month's end. Set against the rest of the year, December is Žumberak's 12th-clearest and 7th-windiest month. For the whole year in context, see Žumberak's year-round climate.

Daytime high
11th warmest
Overnight low
-1°
3rd coldest
Precipitation
77 mm
9.9 wet days
Daylight
8 h 30 min
7:40 AM – 4:09 PM
Cloud cover
71%
12th clearest
Wind
6 km/h
7th windiest
Solar energy
1.06 kWh/m²
Travel score
0.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 6°C in the first days to 4°C by the end.

A typical December day in Žumberak reaches about 5°C in the afternoon and slips back to -1°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 11°C. Set against its neighbours, December runs about 5°C cooler than November and on par with January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
171
271
361
460
560
660
760
860
950
1050
115-1
125-1
135-1
145-1
155-1
165-1
175-1
185-1
195-1
205-1
215-2
225-2
235-2
245-2
255-2
265-2
274-2
284-2
294-2
304-2
314-2

How December really feels in Žumberak

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Žumberak weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°5695.28.90.0
Feb / -1°6794.610.10.9
Mar12° / 6410.22.611.63.3
Apr17° / 78110.513.35.2
May22° / 11°9913.4014.76.1
Jun25° / 15°9711.8015.46.5
Jul28° / 16°9111.3015.26.4
Aug27° / 16°9910.6013.96.5
Sep22° / 12°11011.3012.36.4
Oct17° / 879.30.110.75.3
Nov10° / 8910.11.89.32.4
Dec / -1°779.948.50.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 68%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
22872
32872
42971
52971
63070
73070
83070
92971
103070
113070
123169
133169
143169
153169
163169
173268
183268
193367
203367
213367
223367
233466
243466
253466
263565
273664
283664
293664
303664
313664

Chance of precipitation in December

Any precipitationSnow

Žumberak gets around 77 mm of rain and snow over 9.9 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 33% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13312
23312
33312
43312
53312
63312
73313
83313
93313
103313
113213
123213
133213
143113
153113
163113
173113
183113
193113
203113
213113
223113
233113
243113
253113
263113
273214
283214
293314
303315
313315

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 6 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 42 min at the start of December to 8 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:26 AM to 7:46 AM, and sunset from 4:10 PM to 4:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.77:264:10
28.77:274:10
38.77:284:10
48.77:294:09
58.77:304:09
68.67:314:09
78.67:324:09
88.67:334:09
98.67:344:09
108.67:354:09
118.57:364:09
128.57:374:09
138.57:374:09
148.57:384:09
158.57:394:09
168.57:404:09
178.57:404:10
188.57:414:10
198.57:424:10
208.57:424:11
218.57:434:11
228.57:434:12
238.57:444:12
248.57:444:13
258.57:444:13
268.57:454:14
278.57:454:14
288.57:454:15
298.57:454:16
308.57:464:16
318.57:464:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.06 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 5.92 kWh/m² in July across the year — December's 1.06 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.1Dim
101.1Dim
111.1Dim
121.1Dim
131.1Dim
141.1Dim
151.1Dim
161.1Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.1Dim
251.1Dim
261.1Dim
271.1Dim
281.1Dim
291.1Dim
301.1Dim
311.1Dim
Planning a trip in December

Is December a good time to visit Žumberak?

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

0.1
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Žumberak.

What to pack for Žumberak in December

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

In December, Žumberak sees daytime highs around 5°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Žumberak in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Žumberak 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 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Žumberak in December

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Žumberak is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2218 µg/m³Sep 1713 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb16Moderate
Mar19Moderate
Apr18Moderate
May16Moderate
Jun16Moderate
Jul14Moderate
Aug14Moderate
Sep13Moderate
Oct14Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Žumberak?

Žumberak sits at 45.8°N, 15.4°E, 0 m above sea level, in Croatia. The nearest listed city is Novo Mesto, 20 km away.

ZaprešićKarlovacCentarZagrebTrbovljeVelika Gorica

Topography around Žumberak

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

Within 3 km, the terrain around Žumberak has large variations in elevation — a maximum elevation change of 718 m around an average of 703 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,061 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,649 m.

The land around Žumberak is covered by trees (97%) within 3 km, trees (76%) within 16 km, and trees (75%) within 80 km.

3 km
718 m
16 km
1,061 m
80 km
1,649 m
treesgrasslandcroplandartificial surfaces
December weather nearby: Novo Mesto 20 km · Samobor 24 km · Zaprešić 32 km · Karlovac 32 km · Centar 44 km · Zagreb 44 km · Trbovlje 51 km · Velika Gorica 52 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 Žumberak (45.7671°, 15.4148°, elevation 0 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).