Karlovac in Winter
In winter (December, January and February), Karlovac sees average daytime highs around 6°C and overnight lows near -1°C, with 222 mm of precipitation over about 29 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 7°C in early December to 9°C by late February. The sky is clear or mostly clear about 24% of the time across winter, and the air most often feels dry.
Winter is Karlovac's weakest season of the year to visit on our travel score. For the whole year in context, see Karlovac's year-round climate.
- Avg daytime high
- 6°C
- coldest season of the year
- Avg overnight low
- -1°C
- Precipitation
- 222 mm
- 29 wet days
- Avg wind
- 7 km/h
- Travel score
- 0.4
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Karlovac in Winter
Over the season highs climb from about 7°C in early December to 9°C by late February.
A typical winter day in Karlovac reaches about 6°C and drops to -1°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Karlovac
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Karlovac weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 5° / -2° | 64 | 9.7 | 6.1 | 8.9 | 0.0 |
| Feb | 7° / -1° | 72 | 9.1 | 4.9 | 10.1 | 0.9 |
| Mar | 12° / 2° | 69 | 10.3 | 3.1 | 11.6 | 3.2 |
| Apr | 17° / 6° | 80 | 11.2 | 0.6 | 13.2 | 5.1 |
| May | 21° / 11° | 96 | 12.5 | 0 | 14.7 | 6.2 |
| Jun | 25° / 14° | 82 | 10.9 | 0 | 15.4 | 6.7 |
| Jul | 28° / 16° | 77 | 10.1 | 0 | 15.1 | 6.5 |
| Aug | 27° / 16° | 81 | 9.6 | 0 | 13.9 | 6.6 |
| Sep | 22° / 12° | 103 | 10.7 | 0 | 12.3 | 6.6 |
| Oct | 17° / 8° | 93 | 9.7 | 0.2 | 10.7 | 5.2 |
| Nov | 10° / 4° | 99 | 11.3 | 2.5 | 9.3 | 2.3 |
| Dec | 5° / -1° | 86 | 10.5 | 4.6 | 8.6 | 0.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 24% of the time across winter.
Chance of precipitation in Winter
Karlovac gets around 222 mm of rain and snow over 29 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 7 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 48 min in early December to 10 h 42 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.5 kWh/m².
Is winter a good time to visit Karlovac?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Karlovac.
What to pack for Karlovac in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Karlovac sees daytime highs around 6°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 29 days see rain.
UV index in Karlovac in Winter
Clear-sky midday UV across winter averages 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 7 | 6 | 8 | 8 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Karlovac in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 18 | 16 | 19 | 18 | 16 | 16 | 14 | 14 | 13 | 14 | 14 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 16 | Moderate |
| Mar | 19 | Moderate |
| Apr | 18 | Moderate |
| May | 16 | Moderate |
| Jun | 16 | Moderate |
| Jul | 14 | Moderate |
| Aug | 14 | Moderate |
| Sep | 13 | Moderate |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 15 | Moderate |
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.
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.
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
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.