Climate Overview
The climate in Klagenfurt Airport is cool. The average annual temperature is 9°C and approximately 1051mm of precipitation falls per year. Klagenfurt Airport receives a notable amount of rainfall throughout the year, including during its driest month. Klagenfurt Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, December, when temperatures can drop to -5°C. Snowfall occurs from January to December, with around 95cm accumulating over the season.
Temperature
Temperatures in Klagenfurt Airport vary considerably across the year, with a 29°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 24°C with a mean of 19°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 6°C shift in average temperatures.
Precipitation
Klagenfurt Airport is a moderately rainy area, receiving approximately 1051mm of precipitation annually, which averages out to around 88mm per month. The wettest month is May, averaging 134mm of rainfall. September and August also tend to see above-average precipitation. The driest month is January, with just 43mm. That's 91mm less than May, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 95cm accumulating over the season. December typically sees the most snow at around 22cm.
Wind
Klagenfurt Airport is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is April, averaging 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Klagenfurt Airport, which began on March 20, 2026. Klagenfurt Airport is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in July at around 24°C, while the coldest stretch bottoms out in January near -5°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 0 to 17°C. Precipitation is moderate at around 258mm for the season, averaging 86mm per month. Winds are generally light, averaging 10km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 12 to 24°C. Rainfall is heavy, totalling around 342mm across the season with a monthly average of 114mm. Winds are generally light, averaging 9km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 1 to 19°C. Precipitation is moderate at around 293mm for the season, averaging 98mm per month. Expect around 15cm of snow accumulation during this period. Winds are generally light, averaging 7km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -5 to 5°C. Precipitation is moderate at around 158mm for the season, averaging 53mm per month. Expect around 62cm of snow accumulation during this period. Winds are generally light, averaging 8km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Klagenfurt Airport based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
