Karlovac weather in January

In January, Karlovac sees average daytime highs of 5°C and overnight lows near -2°C, with 64 mm of precipitation across 9.7 wet days and about 8.9 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 24% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 36 min at the start of January to 9 h 24 min by month's end. Set against the rest of the year, January is Karlovac's 10th-clearest and 5th-windiest month. For the whole year in context, see Karlovac's year-round climate.

Daytime high
12th warmest
Overnight low
-2°
1st coldest
Precipitation
64 mm
9.7 wet days
Daylight
8 h 54 min
7:41 AM – 4:34 PM
Cloud cover
68%
10th clearest
Wind
7 km/h
5th windiest
Solar energy
1.32 kWh/m²
Travel score
0.0
out of 10

Karlovac is city and settlement in Karlovac County, Croatia.

Density
104/km²
people per km²
Founded
1579

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 5°C through the month.

A typical January day in Karlovac reaches about 5°C in the afternoon and slips back to -2°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 12°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
15-2
25-2
35-2
45-2
55-2
65-2
75-2
85-2
95-1
105-1
115-1
125-1
135-1
145-1
155-1
165-2
175-2
185-2
195-2
205-2
215-2
225-2
235-2
245-2
255-2
265-2
275-2
285-2
295-2
305-2
315-2

How January really feels in Karlovac

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Karlovac weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°649.76.18.90.0
Feb / -1°729.14.910.10.9
Mar12° / 6910.33.111.63.2
Apr17° / 8011.20.613.25.1
May21° / 11°9612.5014.76.2
Jun25° / 14°8210.9015.46.7
Jul28° / 16°7710.1015.16.5
Aug27° / 16°819.6013.96.6
Sep22° / 12°10310.7012.36.6
Oct17° / 939.70.210.75.2
Nov10° / 9911.32.59.32.3
Dec / -1°8610.54.68.60.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53961
63961
73961
83961
93961
103961
113862
123862
133862
143763
153763
163763
173664
183565
193664
203664
213565
223565
233565
243565
253466
263565
273565
283565
293763
303763
313763

Chance of precipitation in January

Any precipitationSnow

Karlovac gets around 64 mm of rain and snow over 9.7 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 34% on the wettest days, and about 6 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13418
23419
33319
43319
53219
63218
73118
83118
93018
103018
112918
122918
132918
142918
152919
163019
173019
183019
193020
203120
213120
223120
233120
243120
253120
263120
273120
283120
293020
303019
313019

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 36 min at the start of January to 9 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over January. Sunrise moves from 7:44 AM to 7:29 AM, and sunset from 4:18 PM to 4:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.67:444:18
28.67:444:19
38.67:444:20
48.67:444:21
58.67:444:22
68.67:444:23
78.77:444:24
88.77:434:25
98.77:434:26
108.77:434:27
118.87:434:28
128.87:424:29
138.87:424:30
148.87:424:31
158.97:414:32
168.97:414:34
178.97:404:35
188.97:394:36
199.07:394:37
209.07:384:39
219.07:384:40
229.17:374:41
239.17:364:42
249.17:354:44
259.27:344:45
269.27:344:47
279.37:334:48
289.37:324:49
299.37:314:51
309.47:304:52
319.47:294:53

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.32 kWh/m².

For context, solar energy here swings from a low near 1.06 kWh/m² to a high of 6 kWh/m² in July across the year — January's 1.32 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.2Dim
61.2Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.6Dim
281.6Dim
291.6Dim
301.7Dim
311.7Dim
Planning a trip in January

Is January a good time to visit Karlovac?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Karlovac.

What to pack for Karlovac in January

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

In January, Karlovac sees daytime highs around 5°C and nights near -2°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 Karlovac in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Karlovac 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 Karlovac in January

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Karlovac 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 Karlovac?

Karlovac sits at 45.5°N, 15.6°E, 114 m above sea level, in Croatia. The nearest listed city is Žumberak, 32 km away.

ŽumberakSamoborVelika KladušaZaprešićNovo MestoVelika GoricaCentarZagreb

Topography around Karlovac

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

Within 3 km, the terrain around Karlovac has only modest variations in elevation — a maximum elevation change of 129 m around an average of 123 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 442 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,628 m.

The land around Karlovac is covered by trees (35%), grassland (31%) and artificial surfaces (21%) within 3 km, trees (67%) and grassland (22%) within 16 km, and trees (74%) within 80 km.

3 km
129 m
16 km
442 m
80 km
1,628 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Žumberak 32 km · Samobor 37 km · Velika Kladuša 40 km · Zaprešić 45 km · Novo Mesto 46 km · Velika Gorica 48 km · Centar 49 km · Zagreb 49 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 Karlovac (45.4917°, 15.55°, elevation 114 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).