April weather forecast
Zagreb, Croatia

April in Zagreb is marked by a transition from spring chill to the warmth of impending summer months. The daylight stretches to 13.6 hours, allowing more daytime exploration of the city. The progression from cold to warm season is accompanied by an uptick in rainfall. Come May, the temperature will climb even higher and the city will witness more rainfall. April, filled with blossoming landscapes and increasingly comfortable weather, offers an appealing climate for sightseeing in Zagreb.

Temperature

April signals a minor shift in the average high-temperature, moving from March's cool 11.9°C to an enjoyable 16.3°C. In April, the recorded average low-temperature is a wintry 5.2°C.

Humidity

The least humid month in Zagreb is April, with an average relative humidity of 67.5%.

Rainfall

In Zagreb, in April, during 13 rainfall days, 59mm of precipitation is typically accumulated. In Zagreb, Croatia, during the entire year, the rain falls for 135.6 days and collects up to 840mm of precipitation.

Snowfall

Months with snowfall in Zagreb are January through April, November and December. April is the last month it regularly snows in Zagreb, Croatia. Throughout April, there are 0.2 snowfall days. Throughout the year, there are 29 snowfall days.

Daylight

The average length of the day in April is 13h and 34min.
On the first day of April, sunrise is at 06:36 and sunset at 19:23. On the last day of the month, sunrise is at 05:45 and sunset at 20:01 CEST.

Sunshine

The average sunshine in April is 5.6h.

UV index

In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily high UV index of 5 in April translates into this advice:
Adopt protective measures - It is advised to guard against sun damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.