Climate averages 1991–2020
Graz weather
in April.
A mild, moderately 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 mild month in Graz: daytime highs average 15.0°C and nights cool to about 3.6°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 54 mm of rain on roughly 10 days, which makes April a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 34 min on an average April day.
The nearest other city in this atlas is Maribor (59 km away). In April its highs average 16.2°C, 1.2°C warmer than Graz, with 71 mm of rain.
Among the 6 cities listed in Austria, Graz ranks 3rd of 6 for the warmest April highs and 2nd of 6 for the driest April (rainfall, lowest first). The mean April high of those 6 cities is 14.5°C; Graz is 0.4°C warmer than that mean.
From April to May, average highs rise by 4.1°C to 19.0°C, and monthly rainfall rises from 54 mm to 85 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
Graz climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.4°C-5.3°C | -5.3°C | 27 | 6.2 | 9.09 h |
| February | 5.6°C-4.3°C | -4.3°C | 33 | 7.0 | 10.210 h |
| March | 10.0°C-0.6°C | -0.6°C | 45 | 8.4 | 11.912 h |
| April, selected | 15.0°C3.6°C | 3.6°C | 54 | 9.9 | 13.614 h |
| May | 19.0°C8.3°C | 8.3°C | 85 | 13.0 | 15.015 h |
| June | 22.6°C11.9°C | 11.9°C | 90 | 13.5 | 15.816 h |
| July | 24.4°C13.8°C | 13.8°C | 84 | 12.8 | 15.515 h |
| August | 24.0°C13.8°C | 13.8°C | 89 | 11.8 | 14.214 h |
| September | 19.2°C9.7°C | 9.7°C | 83 | 10.1 | 12.613 h |
| October | 14.3°C5.4°C | 5.4°C | 64 | 9.3 | 10.911 h |
| November | 8.6°C1.2°C | 1.2°C | 59 | 8.5 | 9.49 h |
| December | 3.6°C-4.0°C | -4.0°C | 45 | 7.8 | 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
- Maribor in AprilSlovenia · 59 kmHigh 16.2°C · Low 5.9°C · 71 mm rain
- Szombathely in AprilHungary · 91 kmHigh 15.9°C · Low 5.6°C · 47 mm rain
- Klagenfurt am Wörthersee in AprilAustria · 99 kmHigh 14.5°C · Low 4.9°C · 96 mm rain
- Ljubljana in AprilSlovenia · 134 kmHigh 15.1°C · Low 5.3°C · 90 mm rain
- Vienna in AprilAustria · 145 kmHigh 15.7°C · Low 5.4°C · 45 mm rain
- Zagreb in AprilCroatia · 145 kmHigh 16.9°C · Low 6.1°C · 67 mm rain
- Linz in AprilAustria · 163 kmHigh 15.1°C · Low 4.9°C · 55 mm rain
- Bratislava in AprilSlovakia · 173 kmHigh 16.0°C · Low 5.6°C · 44 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 Graz) is explained once on the Graz year overview and on the Sources, method and limits page.