Climate averages 1991–2020
Klagenfurt am Wörthersee weather
in December.
A cold, moderately wet month: the 11th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a cold month in Klagenfurt am Wörthersee: daytime highs average 3.6°C and nights cool to about -2.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 80 mm of rain on roughly 9 days, which makes December a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 8 h 39 min on an average December day.
The nearest other city in this atlas is Ljubljana (66 km away). In December its highs average 4.3°C, 0.7°C warmer than Klagenfurt am Wörthersee, with 90 mm of rain.
Among the 6 cities listed in Austria, Klagenfurt am Wörthersee ranks joint 5th of 6 for the warmest December highs and 4th of 6 for the driest December (rainfall, lowest first). The mean December high of those 6 cities is 3.9°C; Klagenfurt am Wörthersee is 0.3°C cooler than that mean.
From December to January, average highs fall by 0.5°C to 3.1°C, and monthly rainfall falls from 80 mm to 48 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Klagenfurt am Wörthersee climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.1°C-4.0°C | -4.0°C | 48 | 6.8 | 9.09 h |
| February | 4.9°C-2.9°C | -2.9°C | 60 | 7.4 | 10.310 h |
| March | 9.4°C0.8°C | 0.8°C | 76 | 9.7 | 11.912 h |
| April | 14.5°C4.9°C | 4.9°C | 96 | 12.6 | 13.514 h |
| May | 18.9°C9.4°C | 9.4°C | 119 | 14.6 | 15.015 h |
| June | 22.6°C13.1°C | 13.1°C | 136 | 14.8 | 15.816 h |
| July | 24.5°C15.1°C | 15.1°C | 140 | 14.9 | 15.415 h |
| August | 24.1°C15.3°C | 15.3°C | 152 | 14.0 | 14.214 h |
| September | 19.2°C11.1°C | 11.1°C | 139 | 11.5 | 12.613 h |
| October | 14.2°C6.9°C | 6.9°C | 121 | 9.7 | 10.911 h |
| November | 8.5°C2.5°C | 2.5°C | 120 | 10.6 | 9.59 h |
| December, selected | 3.6°C-2.8°C | -2.8°C | 80 | 8.5 | 8.69 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Ljubljana in DecemberSlovenia · 66 kmHigh 4.3°C · Low -1.9°C · 90 mm rain
- Graz in DecemberAustria · 99 kmHigh 3.6°C · Low -4.0°C · 45 mm rain
- Udine in DecemberItaly · 103 kmHigh 6.9°C · Low -1.0°C · 104 mm rain
- Maribor in DecemberSlovenia · 103 kmHigh 4.8°C · Low -1.9°C · 62 mm rain
- Trieste in DecemberItaly · 116 kmHigh 8.0°C · Low 2.0°C · 129 mm rain
- Rijeka in DecemberCroatia · 145 kmHigh 7.7°C · Low 2.0°C · 169 mm rain
- Zagreb in DecemberCroatia · 157 kmHigh 5.1°C · Low -1.2°C · 68 mm rain
- Salzburg in DecemberAustria · 162 kmHigh 3.8°C · Low -3.9°C · 121 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Klagenfurt am Wörthersee) is explained once on the Klagenfurt am Wörthersee year overview and on the Sources, method and limits page.