Climate averages 1991–2020
Klagenfurt am Wörthersee weather
in April.
A cool, wet month: the 6th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Klagenfurt am Wörthersee: daytime highs average 14.5°C and nights cool to about 4.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 96 mm of rain on roughly 13 days, which makes April a wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 33 min on an average April day.
The nearest other city in this atlas is Ljubljana (66 km away). In April its highs average 15.1°C, 0.6°C warmer than Klagenfurt am Wörthersee, with 90 mm of rain.
Among the 6 cities listed in Austria, Klagenfurt am Wörthersee ranks 4th of 6 for the warmest April highs and 4th of 6 for the driest April (rainfall, lowest first). The mean April high of those 6 cities is 14.5°C; Klagenfurt am Wörthersee is level with that mean.
From April to May, average highs rise by 4.4°C to 18.9°C, and monthly rainfall rises from 96 mm to 119 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Ljubljana in AprilSlovenia · 66 kmHigh 15.1°C · Low 5.3°C · 90 mm rain
- Graz in AprilAustria · 99 kmHigh 15.0°C · Low 3.6°C · 54 mm rain
- Udine in AprilItaly · 103 kmHigh 15.7°C · Low 5.5°C · 104 mm rain
- Maribor in AprilSlovenia · 103 kmHigh 16.2°C · Low 5.9°C · 71 mm rain
- Trieste in AprilItaly · 116 kmHigh 16.4°C · Low 7.8°C · 110 mm rain
- Rijeka in AprilCroatia · 145 kmHigh 16.5°C · Low 8.1°C · 114 mm rain
- Zagreb in AprilCroatia · 157 kmHigh 16.9°C · Low 6.1°C · 67 mm rain
- Salzburg in AprilAustria · 162 kmHigh 14.4°C · Low 2.9°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.