Weather in Klagenfurt

Planning your trip to Klagenfurt? In this section, you will find the most up-to-date weather information, including current readings and detailed forecasts to help you better prepare for your journey.

The climate in Klagenfurt can be described as moderate continental, with a noticeable influence from the proximity of the Alps. All four seasons are distinct here, each bringing its own colours to the city's atmosphere. Overall, the weather is comfortable for travel: there is no exhausting tropical heat here, and whilst winter colds are palpable, they rarely become extreme.

Summer in the capital of Carinthia is usually warm and pleasant, with average daytime temperatures rising to 22–24°C in July and August. However, tourists should take note of a specific feature of the local climate: the warm season is often accompanied by precipitation. May and the summer months lead in the number of rainy days, so an umbrella will become an essential accessory even during the sunny season.

Winter in Klagenfurt is real, snowy, and bracing. From December to February, the thermometer often stays below freezing, dropping to an average of -4°C...-5°C at night. The transitional seasons—spring and autumn—offer cool but fresh weather, with September often being quite warm and dry, reminiscent of the passing summer.

The temperature regime in Klagenfurt is characterised by distinct seasonality typical for this region of Austria. Winter here is usually frosty and snowy: the coldest month is January with an average temperature of around -1.4°C. During this period, night frosts can reach -5.2°C, and daytime readings rarely rise significantly above freezing, so travellers should ensure they have warm clothing.

The summer season brings pleasant warmth without exhausting heat, making the city comfortable for excursions and outdoor recreation. The warmest months are July and August, when the air warms up to an average of 23.5°C — 23.8°C during the day. This time is ideal for visiting local attractions and walking by the lake, as the weather encourages spending long periods in the fresh air.

A characteristic feature of the local climate is the noticeable difference between day and night temperatures, especially during the warm season. Even in the height of summer, after a warm day, the nights remain quite fresh: minimum temperatures in July and August drop to 13.6°C — 13.7°C. Spring and autumn pass with moderate readings, ensuring a smooth transition between seasons.

Precipitation in Klagenfurt is distributed quite unevenly throughout the year, with a noticeable increase in humidity during the warm season. In winter, when average temperatures drop below freezing (especially in January and December), precipitation often falls as snow, creating picturesque winter landscapes. February is statistically the driest month of the year: the lowest number of days with precipitation is recorded at this time—only about 7.

With the arrival of spring, the situation changes drastically. May is considered the rainiest month of the year: statistics show up to 21 rainy days, so an umbrella or raincoat will be mandatory companions for the traveller at the end of spring. Summer months also feature a high frequency of precipitation (an average of 16–17 days with rain in June and July), which often manifests as summer downpours and thunderstorms typical of the Alpine region.

In autumn, the intensity of precipitation gradually decreases. Whilst September still sees about 14 wet days, by October and November their number decreases to 10–11. In general, Klagenfurt's climate implies that the chance of getting caught in rain or snow remains in any season, but the most stable and clear weather most often falls at the end of winter and the beginning of spring.

When packing for Klagenfurt, it is important to remember the changeability of the climate and prepare your wardrobe based on the principle of layering. Winter here can be frosty, with temperatures often dropping below freezing, so be sure to take a warm windproof jacket or down coat, a hat, a scarf, and gloves. Thermal underwear and insulated shoes with non-slip soles will become your best helpers during walks through the snowy streets of the city, especially in January and February.

In summer, the weather becomes comfortable and warm, with average highs of around +24°C, which is ideal for light clothing made from natural fabrics. Don't forget swimwear, as relaxing at the nearby Lake Wörthersee is a popular part of summer leisure. However, judging by statistics, rain in the warm season is a frequent occurrence (especially in May and June), so a light raincoat or a compact umbrella should always be in your suitcase.

Transitional seasons are characterised by temperature fluctuations, so it is worth grabbing a fleece jacket or jumper that is easy to remove if the air warms up during the day. Regardless of the time of year, you will need comfortable shoes for long walks through the historic centre and nature parks. We also recommend taking sunscreen and sunglasses: even in cloudy weather or in winter, when the sun reflects off the snow, UV protection will not be superfluous.