worldweather25°Cexceptionally warm
usually 17°C–23°C
warmer than 92% of similar days
night: exceptionally warm
rain: more rain than usual
wind: lighter than usual
Weather in Klagenfurt - 14-day forecast
Detailed weather forecast for Klagenfurt, Austria: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Klagenfurt
today🌧️
25°💧 6.7 mm
Sun☁️
24°💧 0.2 mm
Mon🌤️
26°💧 0.4 mm
Tue🌤️
29°💧 50 mm
Wed🌧️
19°💧 14.7 mm
Thu🌧️
14°💧 7.2 mm
Fri☁️
17°💧 78.2 mm
Sat🌧️
21°💧 1 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.
Tuesday 8 Sept in Klagenfurt, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 16°C to 23°C, so it will be exceptionally warm. It is warmer than 99% of similar days.
24°Cwarmer than usual
usually 17°C–23°C
warmer than 85% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
26°Cexceptionally warm
usually 17°C–23°C
warmer than 96% of similar days
night: exceptionally warm
rain: typical rainfall
wind: exceptionally light
29°Cexceptionally warm
usually 16°C–23°C
warmer than 99% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
19°Cnear normal
usually 16°C–23°C
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally light
14°Cexceptionally cool
usually 16°C–23°C
cooler than 94% of similar days
night: warmer than usual
rain: more rain than usual
wind: exceptionally light
17°Ccooler than usual
usually 16°C–23°C
cooler than 71% of similar days
night: exceptionally warm
rain: exceptionally wet
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 20°C by day. The coolest year was 1996 (15°C) and the warmest was 2011 (24°C). The current forecast averages 22°C - higher than in 80% 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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Klagenfurt
No active weather warnings for Klagenfurt (region: Kärnten). The national weather service is not forecasting dangerous conditions.
14-day forecast - Klagenfurt
Klagenfurt 30 & 45-day weather - long-range outlook
Next 16 days · forecast
19°
around 14° at night · days with rain: 10
Weeks 3-4 · avg for September
18°
around 9° at night · rain chance 37%
Weeks 5-7 · avg for October
14°
around 6° at night · rain chance 26%
The 30 & 45-day outlook for Klagenfurt: the next 16 days are a numerical forecast updated daily - on average 19° by day and 14° at night. Further out we rely on multi-year climate averages: around 18° in September, and about 14° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Klagenfurt
Saturday5 September 2026
🌧️25°moderate rain
Sunday6 September 2026
☁️24°broken clouds
Monday7 September 2026
🌤️26°a few clouds
Tuesday8 September 2026
🌤️29°a few clouds
Wednesday9 September 2026
🌧️19°heavy rain
Thursday10 September 2026
🌧️14°light rain
Friday11 September 2026
☁️17°broken clouds
Saturday12 September 2026
🌧️21°light rain
Sunday13 September 2026
🌧️14°light rain
Monday14 September 2026
☁️17°broken clouds
Tuesday15 September 2026
☀️20°clear sky
Wednesday16 September 2026
🌧️22°light rain
Thursday17 September 2026
🌧️18°light rain
Friday18 September 2026
🌧️16°light rain
Saturday19 September 2026
🌧️15°light rain
Sunday20 September 2026
🌤️12°a few clouds
UV index in Klagenfurt - is it safe to sunbathe?
Today the UV index in Klagenfurt 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 Klagenfurt - info for allergy sufferers
Today ragweed pollen is highest in Klagenfurt - about 2 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.
Klagenfurt weather through the year
Warmest, driest months on average: April, May, June, July.
Upcoming public holidays in Austria: Austrian National Day — 26 October · All Saints' Day — 1 November · Immaculate Conception — 8 December.
Nearby and related places
FAQ - Klagenfurt weather
What is the weather like in Klagenfurt today?
Today it is about 25° during the day and 19° at night, moderate rain.
How far ahead can I check the forecast for Klagenfurt?
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.