Climate averages 1991–2020
Zagreb weather
in April.
A mild, moderately wet month: the 6th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Zagreb: daytime highs average 16.9°C and nights cool to about 6.1°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 67 mm of rain on roughly 11 days, which makes April a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 30 min on an average April day.
The nearest other city in this atlas is Maribor (86 km away). In April its highs average 16.2°C, 0.7°C cooler than Zagreb, with 71 mm of rain.
Among the 4 cities listed in Croatia, Zagreb ranks 3rd of 4 for the warmest April highs and 2nd of 4 for the driest April (rainfall, lowest first). The mean April high of those 4 cities is 17.0°C; Zagreb is 0.1°C cooler than that mean.
From April to May, average highs rise by 4.3°C to 21.2°C, and monthly rainfall rises from 67 mm to 87 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
Zagreb climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.7°C-2.2°C | -2.2°C | 49 | 8.0 | 9.19 h |
| February | 7.2°C-1.6°C | -1.6°C | 56 | 8.3 | 10.310 h |
| March | 12.1°C1.8°C | 1.8°C | 59 | 9.5 | 11.912 h |
| April, selected | 16.9°C6.1°C | 6.1°C | 67 | 10.5 | 13.514 h |
| May | 21.2°C10.8°C | 10.8°C | 87 | 12.7 | 14.915 h |
| June | 25.2°C15.0°C | 15.0°C | 84 | 11.4 | 15.716 h |
| July | 27.5°C17.2°C | 17.2°C | 77 | 10.6 | 15.315 h |
| August | 27.4°C17.3°C | 17.3°C | 81 | 9.4 | 14.114 h |
| September | 21.8°C12.6°C | 12.6°C | 94 | 10.0 | 12.613 h |
| October | 16.6°C8.1°C | 8.1°C | 80 | 9.1 | 11.011 h |
| November | 10.5°C3.6°C | 3.6°C | 80 | 9.6 | 9.510 h |
| December | 5.1°C-1.2°C | -1.2°C | 68 | 9.5 | 8.79 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 · 86 kmHigh 16.2°C · Low 5.9°C · 71 mm rain
- Bihać in AprilBosnia and Herzegovina · 111 kmHigh 16.3°C · Low 6.0°C · 110 mm rain
- Ljubljana in AprilSlovenia · 117 kmHigh 15.1°C · Low 5.3°C · 90 mm rain
- Rijeka in AprilCroatia · 131 kmHigh 16.5°C · Low 8.1°C · 114 mm rain
- Graz in AprilAustria · 145 kmHigh 15.0°C · Low 3.6°C · 54 mm rain
- Banja Luka in AprilBosnia and Herzegovina · 150 kmHigh 17.1°C · Low 5.5°C · 92 mm rain
- Klagenfurt am Wörthersee in AprilAustria · 157 kmHigh 14.5°C · Low 4.9°C · 96 mm rain
- Szombathely in AprilHungary · 165 kmHigh 15.9°C · Low 5.6°C · 47 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 Zagreb) is explained once on the Zagreb year overview and on the Sources, method and limits page.