Climate averages 1991–2020
Klagenfurt am Wörthersee weather
in May.
A mild, wet month: the 5th warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Klagenfurt am Wörthersee: daytime highs average 18.9°C and nights cool to about 9.4°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 119 mm of rain on roughly 15 days, which makes May a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 59 min on an average May day.
The nearest other city in this atlas is Ljubljana (66 km away). In May its highs average 19.3°C, about as warm as Klagenfurt am Wörthersee, with 103 mm of rain.
Among the 6 cities listed in Austria, Klagenfurt am Wörthersee ranks 4th of 6 for the warmest May highs and 4th of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 18.9°C; Klagenfurt am Wörthersee is level with that mean.
From May to June, average highs rise by 3.6°C to 22.6°C, and monthly rainfall rises from 119 mm to 136 mm.
The annual picture
May 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, selected | 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
May in nearby cities
- Ljubljana in MaySlovenia · 66 kmHigh 19.3°C · Low 9.7°C · 103 mm rain
- Graz in MayAustria · 99 kmHigh 19.0°C · Low 8.3°C · 85 mm rain
- Udine in MayItaly · 103 kmHigh 20.0°C · Low 10.2°C · 115 mm rain
- Maribor in MaySlovenia · 103 kmHigh 20.4°C · Low 10.6°C · 99 mm rain
- Trieste in MayItaly · 116 kmHigh 20.6°C · Low 12.3°C · 122 mm rain
- Rijeka in MayCroatia · 145 kmHigh 20.7°C · Low 12.6°C · 120 mm rain
- Zagreb in MayCroatia · 157 kmHigh 21.2°C · Low 10.8°C · 87 mm rain
- Salzburg in MayAustria · 162 kmHigh 18.8°C · Low 7.9°C · 196 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.