Klagenfurt am Wörthersee climate
Klagenfurt am Wörthersee (Austria) has a warm-summer humid continental climate (Köppen Dfb). The average temperature over the year is 10 °C51 °F, and about 1,060 mm42 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Klagenfurt am Wörthersee climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 338 | −425 | 031 | 451.8 |
| Feb | 541 | −326 | 133 | 572.2 |
| Mar | 1050 | 032 | 541 | 612.4 |
| Apr | 1660 | 540 | 1050 | 712.8 |
| May | 2068 | 948 | 1558 | 1004.0 |
| Jun | 2576 | 1456 | 1966 | 1104.3 |
| Jul | 2780 | 1560 | 2170 | 1144.5 |
| Aug | 2679 | 1559 | 2169 | 1254.9 |
| Sep | 2169 | 1050 | 1660 | 1244.9 |
| Oct | 1660 | 643 | 1152 | 943.7 |
| Nov | 1049 | 236 | 643 | 913.6 |
| Dec | 540 | −228 | 134 | 672.6 |
| Year | 2780 | −425 | 1051 | 1,06042 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 91% | 72% | 1.3 | 8:57 |
| Feb | 88% | 72% | 2.1 | 10:15 |
| Mar | 83% | 66% | 3.3 | 11:46 |
| Apr | 78% | 65% | 4.4 | 13:31 |
| May | 76% | 69% | 5.2 | 14:00 |
| Jun | 74% | 64% | 5.8 | 15:49 |
| Jul | 71% | 59% | 5.9 | 15:29 |
| Aug | 72% | 56% | 5.0 | 14:11 |
| Sep | 78% | 63% | 3.6 | 12:29 |
| Oct | 85% | 66% | 2.4 | 10:48 |
| Nov | 89% | 74% | 1.4 | 9:19 |
| Dec | 90% | 73% | 1.1 | 8:35 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Klagenfurt am Wörthersee is like
The warmest month is July, with an average high of 27 °C80 °F and a low of 15 °C60 °F. The coldest is January, when highs average 3 °C38 °F and lows −4 °C25 °F. Seasons are strongly marked: the warmest month is on average 21.5 °C38.8 °F warmer than the coldest.
It is wet, with about 1,060 mm42 in of precipitation per year. The wettest three-month stretch is July–September, which brings 34% of the annual total. The wettest month is August (125 mm4.9 in), the driest is January (45 mm1.8 in).
Relative humidity ranges from 71% in July to 91% in January. The clearest skies (lowest average cloud amount, 56%) are typical of August. Average wind speed near the ground ranges from 1 km/h (1 mph) in June to 2 km/h (1 mph) in February. Daylight lasts from about 8.6 hours in December to 15.8 hours in June.
Best time to visit Klagenfurt am Wörthersee
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September: average highs of 20 °C68 °F to 27 °C80 °F with 100 mm4.0 in to 125 mm4.9 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 3 °C38 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Klagenfurt am Wörthersee
- Winter (December–February) — highs 338 to 5 °C41 °F, lows −425 to −2 °C28 °F, about 56 mm2.2 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1050 to 20 °C68 °F, lows 032 to 9 °C48 °F, about 78 mm3.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2576 to 27 °C80 °F, lows 1456 to 15 °C60 °F, about 116 mm4.6 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses, an extra layer for the cooler mornings and evenings and an umbrella or light rain jacket.
- Autumn (September–November) — highs 1049 to 21 °C69 °F, lows 236 to 10 °C50 °F, about 103 mm4.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
How Klagenfurt am Wörthersee compares
Compared with Ljubljana, about 66 km to the south, Klagenfurt am Wörthersee is on average 0.9 °C1.6 °F cooler and receives a similar amount of precipitation. The difference is largest in January (1.1 °C2 °F cooler).
Of the 6 places in Austria covered by World Climates, Klagenfurt am Wörthersee is the 2nd warmest by annual mean temperature and the 3rd wettest by annual precipitation. See all of them on the Austria climate page.
Places in other countries with the most similar temperature and rainfall pattern: Ljubljana (Slovenia, Cfb), Basel (Switzerland, Cfb) and Mulhouse (France, Cfb).
Nearby places
- Ljubljana 66 km · 11 °C52 °F · 1,051 mm41 in
- Graz 99 km · 10 °C51 °F · 832 mm33 in
- Udine 103 km · 14 °C56 °F · 1,074 mm42 in
- Trieste 116 km · 15 °C59 °F · 1,026 mm40 in
- Rijeka 145 km · 13 °C56 °F · 1,197 mm47 in
- Zagreb 157 km · 11 °C53 °F · 906 mm36 in
- Salzburg 162 km · 10 °C49 °F · 1,262 mm50 in
- Linz 187 km · 10 °C50 °F · 881 mm35 in
Frequently asked questions
What is the warmest month in Klagenfurt am Wörthersee?
July is the warmest month in Klagenfurt am Wörthersee, with an average high of 27 °C (80 °F) and an average low of 15 °C (60 °F).
What is the coldest month in Klagenfurt am Wörthersee?
January is the coldest month, with an average high of 3 °C (38 °F) and an average low of -4 °C (25 °F).
When does it rain the most in Klagenfurt am Wörthersee?
August is the wettest month with about 125 mm (4.9 in) of precipitation; January is the driest with about 45 mm (1.8 in).
What is the best time to visit Klagenfurt am Wörthersee?
Judging by long-term averages, the most comfortable months are May–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 862 m, while Klagenfurt am Wörthersee lies at about 450 m. Temperatures on this page were therefore adjusted by +2.7 °C4.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.