worldweather30°Cexceptionally warm
usually 21°C–28°C
warmer than 92% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally strong
Weather in Karlovac - 14-day forecast
Detailed weather forecast for Karlovac, Croatia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Karlovac
today☀️
30°💧 5 mm
Sun☀️
27°💧 0.3 mm
Mon☀️
27°💧 5.4 mm
Tue☀️
29°💧 0.2 mm
Wed🌧️
28°💧 4.3 mm
Thu🌧️
18°💧 5.3 mm
Fri☁️
20°💧 1.5 mm
Sat☁️
25°💧 18.5 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Saturday 5 Sept in Karlovac, the forecast high is 30°C. Typical daytime temperatures at this time of year range from 21°C to 28°C, so it will be exceptionally warm. It is warmer than 92% of similar days.
27°Cwarmer than usual
usually 20°C–28°C
warmer than 76% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally strong
27°Cwarmer than usual
usually 20°C–28°C
warmer than 78% of similar days
night: exceptionally warm
rain: more rain than usual
wind: exceptionally light
29°Cwarmer than usual
usually 20°C–28°C
warmer than 87% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
28°Cwarmer than usual
usually 20°C–28°C
warmer than 82% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
18°Cexceptionally cool
usually 20°C–28°C
cooler than 90% of similar days
night: warmer than usual
rain: more rain than usual
wind: stronger than usual
20°Ccooler than usual
usually 20°C–27°C
cooler than 76% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 24°C by day. The coolest year was 2007 (18°C) and the warmest was 2008 (29°C). The current forecast averages 26°C - higher than in 69% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Karlovac
No active weather warnings for Karlovac (region: Karlovac region). The national weather service is not forecasting dangerous conditions.
14-day forecast - Karlovac
Karlovac 30 & 45-day weather - long-range outlook
Next 16 days · forecast
25°
around 18° at night · days with rain: 9
Weeks 3-4 · avg for September
21°
around 11° at night · rain chance 53%
Weeks 5-7 · avg for October
18°
around 8° at night · rain chance 42%
The 30 & 45-day outlook for Karlovac: the next 16 days are a numerical forecast updated daily - on average 25° by day and 18° at night. Further out we rely on multi-year climate averages: around 21° in September, and about 18° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Karlovac
Saturday5 September 2026
☀️30°clear sky
Sunday6 September 2026
☀️27°clear sky
Monday7 September 2026
☀️27°clear sky
Tuesday8 September 2026
☀️29°clear sky
Wednesday9 September 2026
🌧️28°moderate rain
Thursday10 September 2026
🌧️18°light rain
Friday11 September 2026
☁️20°overcast clouds
Saturday12 September 2026
☁️25°broken clouds
Sunday13 September 2026
🌧️20°light rain
Monday14 September 2026
☁️20°broken clouds
Tuesday15 September 2026
☀️23°clear sky
Wednesday16 September 2026
☀️28°clear sky
Thursday17 September 2026
🌧️25°light rain
Friday18 September 2026
☀️26°clear sky
Saturday19 September 2026
☀️27°clear sky
Sunday20 September 2026
☀️28°clear sky
UV index in Karlovac - is it safe to sunbathe?
Today the UV index in Karlovac is 6 (moderate) - unprotected fair skin can burn in about 35 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Pollen in Karlovac - info for allergy sufferers
Today ragweed pollen is highest in Karlovac - about 474 grains/m³, very high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.
Karlovac weather through the year
Warmest, driest months on average: April, May, June, July.
Upcoming public holidays in Croatia: All Saints' Day — 1 November · Remembrance Day — 18 November · Christmas Day — 25 December.
Nearby and related places
FAQ - Karlovac weather
What is the weather like in Karlovac today?
Today it is about 30° during the day and 20° at night, clear sky.
How far ahead can I check the forecast for Karlovac?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.