Zagreb, Croatia climate

Cfa Humid subtropical

Zagreb has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 29°C, while the coldest is January averaging around 0°C at night. Around 890 mm of precipitation falls each year, peaking in September (101 mm) and easing off in January (45 mm).

☀️ Summers

Warm

Highs near 29°C in July.

About 15 days a year above 32 °C

❄️ Winters

Cold

Lows near 0°C in January.

About 50 freezing nights a year

🌧️ Rain

Moderate rainfall

About 890 mm of rain a year.

Wettest in September

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+1.2 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Zagreb climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	5	8	13	18	23	27	29	28	22	17	11	6
Avg temp (°C)	3	4	9	14	18	22	23	23	18	13	8	3
Avg low (°C)	0	1	5	9	13	17	18	18	14	9	5	1
Precipitation (mm)	45	48	50	63	78	87	88	87	101	91	89	64

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	5	8	13	18	23	27
Avg temp (°C)	3	4	9	14	18	22
Avg low (°C)	0	1	5	9	13	17
Precipitation (mm)	45	48	50	63	78	87

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	29	28	22	17	11	6
Avg temp (°C)	23	23	18	13	8	3
Avg low (°C)	18	18	14	9	5	1
Precipitation (mm)	88	87	101	91	89	64

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	9	10	12	13	12	11	9	11	11	12	11
Days with high ≥ 32°C (days)	—	—	—	—	0.1	3	6	6	0.1	—	—	—
Days with low ≤ 0°C (days)	17	11	4	0.2	—	—	—	—	—	0.2	4	14

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	9	9	10	12	13	12
Days with high ≥ 32°C (days)	—	—	—	—	0.1	3
Days with low ≤ 0°C (days)	17	11	4	0.2	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	9	11	11	12	11
Days with high ≥ 32°C (days)	6	6	0.1	—	—	—
Days with low ≤ 0°C (days)	—	—	—	0.2	4	14

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	69	68	66	67	64	59	49	48	59	67	74	71
Clear days (≤ 30% cloud)	3	4	5	5	5	6	11	11	7	4	2	3
Partly cloudy days (30–70%)	10	9	9	9	11	11	11	11	10	10	9	10
Cloudy days (≥ 70%)	18	16	17	16	15	13	10	9	13	17	19	19
Relative humidity (%)	92	88	83	77	74	70	63	62	72	82	90	93
Wind speed (km/h)	7.2	8.0	8.2	7.5	7.1	6.3	6.1	5.8	6.2	6.3	6.4	6.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	69	68	66	67	64	59
Clear days (≤ 30% cloud)	3	4	5	5	5	6
Partly cloudy days (30–70%)	10	9	9	9	11	11
Cloudy days (≥ 70%)	18	16	17	16	15	13
Relative humidity (%)	92	88	83	77	74	70
Wind speed (km/h)	7.2	8.0	8.2	7.5	7.1	6.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	49	48	59	67	74	71
Clear days (≤ 30% cloud)	11	11	7	4	2	3
Partly cloudy days (30–70%)	11	11	10	10	9	10
Cloudy days (≥ 70%)	10	9	13	17	19	19
Relative humidity (%)	63	62	72	82	90	93
Wind speed (km/h)	6.1	5.8	6.2	6.3	6.4	6.8

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Zagreb-gric, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →