Zagreb climate — normals and trends
Zagreb (Croatia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.3 °C and it receives 858 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (21.9 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in June.
Zagreb averages 76 frost days, 22 hot days (≥ 30 °C) and 120 rainy days per year.
Zagreb has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 92 to 60 per year over the period.
The hottest day of the period reached 40.1 °C (on 8 August 2013) and the coldest -29.1 °C (on 15 February 1940).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
ZagrebCity of Zagreb
- coords
- 45.81°, 15.98°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.3°C
Average daily high
15.9°C
Average daily low
7.1°C
Annual rainfall
858mm
Sunshine / day
8.4h
Mean relative humidity
76%
Average peak wind
11.8km/h
Seasonal range
22.0°C
Frost days (< 0 °C)
76 d/yr
Hot days (≥ 30 °C)
22 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
62.5 cm
Average feels-like high
14.6 °C
Average feels-like low
5.3 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
6 d/yr
Solar radiation
12.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.52 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
40.1 °C
8 August 2013
Coldest day
-29.1 °C
15 February 1940
Wettest day
65 mm
13 July 1972
Windiest day
43.9 km/h
10 February 1984
Strongest gust
100.1 km/h
10 February 1984
Hottest feels-like
41.7 °C
20 July 2007
Coldest feels-like
-33.9 °C
15 February 1940
Snowiest day
23.0 cm
13 November 1993
Sunniest day
14.9 h
22 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.9 °C | +4.7 °C | 60 mm | +8 mm |
| Feb | 6.5 °C | +0.2 °C | 59 mm | +4 mm |
| Mar | 14.6 °C | +3.1 °C | 115 mm | +53 mm |
| Apr | 19.1 °C | +2.5 °C | 65 mm | -8 mm |
| May | 21.0 °C | -0.1 °C | 79 mm | -5 mm |
| Jun | 29.8 °C | +4.9 °C | 15 mm | -72 mm |
| Jul | 28.7 °C | +1.5 °C | 104 mm | +25 mm |
| Aug | 28.3 °C | +1.3 °C | 50 mm | -21 mm |
| Sep | 23.7 °C | +1.2 °C | 66 mm | -11 mm |
| Oct | 16.8 °C | +0.4 °C | 109 mm | +38 mm |
| Nov | 10.7 °C | +1.1 °C | 91 mm | +8 mm |
| Dec | 5.2 °C | +0.7 °C | 47 mm | -20 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Zagreb?
Zagreb has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 858 mm of precipitation per year.
What is the hottest day ever recorded in Zagreb?
The hottest day measured in Zagreb between 1940 and 2025 was 8 August 2013, reaching 40.1 °C.
What is the coldest day in Zagreb?
The coldest day measured in Zagreb between 1940 and 2025 was 15 February 1940, at -29.1 °C.
Does it snow in Zagreb?
Yes. Zagreb gets on average 62.5 cm of snow per year and has around 76 frost days.
Has the climate of Zagreb warmed?
Yes: Zagreb warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Zagreb?
The wettest day measured in Zagreb between 1940 and 2025 was 13 July 1972, with 65 mm of rain in 24 hours.
What was the windiest day in Zagreb?
The windiest day measured in Zagreb between 1940 and 2025 was 10 February 1984, with winds reaching 43.9 km/h.
What is the warmest month in Zagreb?
The warmest month in Zagreb is July (21.9 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Zagreb?
Zagreb receives on average 858 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Zagreb?
Zagreb gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Zagreb?
The heaviest 24-hour snowfall measured in Zagreb between 1940 and 2025 was 13 November 1993, with 23.0 cm.
Are there tropical nights in Zagreb?
Yes: Zagreb has on average 6 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Zagreb?
In Zagreb, between 1940 and 2025, the highest apparent temperature reached 41.7 °C on 20 July 2007, and the lowest was -33.9 °C on 15 February 1940.
Compare Zagreb with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Zagreb