May weather forecast
Zagreb, Croatia

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The iconic buildings of the cathedral in Zagreb, Croatia in an early autumn morning
The iconic buildings of the cathedral in Zagreb, Croatia in an early autumn morning

Weather in May

May signals the advent of summer in Zagreb, treating the city to warm temperatures and verdant landscapes. At an average maximum temperature of 21.5°C (70.7°F), May records the highest temperature spike so far in the year. Daylight peaks at almost 15 hours, offering lengthy, sunlit days. As June approaches, anticipation of even warmer weather and sunshine-filled longer days builds. May's vibrant weather conditions offer an ideal setting for outdoor activities in Zagreb.

Temperature

Zagreb's weather in May presents a rise in the average high-temperature, moving from a comfortable 16.3°C (61.3°F) in April to an agreeable 21.5°C (70.7°F). During May, the average low-temperature in Zagreb, Croatia, is a chilly 9.8°C (49.6°F).

Humidity

In Zagreb, the average relative humidity in May is 68.3%.

Rainfall

In Zagreb, in May, it is raining for 13.5 days, with typically 73mm (2.87") of accumulated precipitation. In Zagreb, during the entire year, the rain falls for 135.6 days and collects up to 840mm (33.07") of precipitation.

Snowfall

May through October are months without snowfall in Zagreb, Croatia.

Daylight

The average length of the day in May in Zagreb is 14h and 57min.
On the first day of May in Zagreb, sunrise is at 05:42 and sunset at 20:03. On the last day of the month, sunrise is at 05:09 and sunset at 20:37 CEST.

Sunshine

In May, the average sunshine in Zagreb is 7.4h.

UV index

The average daily maximum UV index in May in Zagreb is 7. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 7 suggests this advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.

Frequently asked questions

What is the average May temperature in Zagreb?

During May, Zagreb experiences an average high-temperature of 21.5°C (70.7°F) and a low-temperature of 9.8°C (49.6°F).

What is the average humidity in May in Zagreb?

In Zagreb, the average relative humidity in May is 68.3%.

How many days does it rain in May in Zagreb?

In Zagreb, during May, the rain falls for 13.5 days and regularly aggregates up to 73mm (2.87") of precipitation.

When it does not snow in Zagreb?

In Zagreb, Croatia, snow does not fall in May through October.

Does it snow in Zagreb in May?

In May, in Zagreb, Croatia, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Zagreb?

In Zagreb, Croatia, the average day length in May is 14h and 57min.

When is the sunrise / sunset in May in Zagreb?

On the first day of May in Zagreb, Croatia, sunrise is at 05:42 and sunset at 20:03. On the last day of the month, sunrise is at 05:09 and sunset at 20:37 CEST.

How many hours of sunshine does Zagreb have in May?

The average sunshine duration in May in Zagreb is 7.4h.

What is the UV index intensity in May in Zagreb?

The average daily maximum UV index in May in Zagreb, Croatia, is 7. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in May
Zagreb, Croatia

Average temperature in May - Zagreb, Croatia
  • Average high temperature in May: 21.5°C

The warmest month (with the highest average high temperature) is July (26.7°C).
The month with the lowest average high temperature is January (3.7°C).

  • Average low temperature in May: 9.8°C

The month with the highest average low temperature is July (14.7°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

Average humidity in May
Zagreb, Croatia

Average humidity in May - Zagreb, Croatia
  • Average humidity in May: 68.3%

The month with the highest relative humidity is December (84.8%).
The month with the lowest relative humidity is April (67.5%).

Average rainfall in May
Zagreb, Croatia

Average rainfall in May - Zagreb, Croatia
  • Average rainfall in May: 72.6mm

The wettest month (with the highest rainfall) is June (95.3mm).
The driest month (with the least rainfall) is February (38.9mm).

Average rainfall days in May
Zagreb, Croatia

Average rainfall days in May - Zagreb, Croatia
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is June (13.7 days).
The month with the least rainy days is February (9.4 days).

Average snowfall days in May
Zagreb, Croatia

Average snowfall days in May - Zagreb, Croatia
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Zagreb, Croatia

Average daylight in May / Average sunshine in May - Zagreb, Croatia
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 7h and 2min

The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 1h and 36min).

Average UV index in May
Zagreb, Croatia

Average UV index in May - Zagreb, Croatia
  • Average UV index in May: 7

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 1).

Zagreb, Croatia

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