Zagreb climate
Zagreb (Croatia) has a hot-summer humid continental climate (Köppen Dfa). The average temperature over the year is 11 °C53 °F, and about 906 mm36 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Zagreb climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 337 | −425 | 031 | 522.0 | 24 |
| Feb | 541 | −327 | 134 | 602.4 | 20 |
| Mar | 1152 | 134 | 643 | 592.3 | 13 |
| Apr | 1762 | 643 | 1153 | 622.4 | 2 |
| May | 2271 | 1151 | 1661 | 923.6 | 0 |
| Jun | 2679 | 1559 | 2169 | 863.4 | 0 |
| Jul | 2985 | 1763 | 2374 | 823.2 | 0 |
| Aug | 2984 | 1762 | 2373 | 833.3 | 0 |
| Sep | 2373 | 1153 | 1763 | 1074.2 | 0 |
| Oct | 1762 | 643 | 1153 | 833.3 | 2 |
| Nov | 1050 | 236 | 643 | 793.1 | 9 |
| Dec | 439 | −228 | 134 | 632.5 | 22 |
| Year | 2985 | −425 | 1153 | 90636 | 91 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 92% | 76% | 1.3 | 9:02 |
| Feb | 89% | 75% | 2.0 | 10:18 |
| Mar | 83% | 68% | 3.2 | 11:46 |
| Apr | 77% | 66% | 4.4 | 13:28 |
| May | 74% | 66% | 5.4 | 14:55 |
| Jun | 69% | 59% | 6.2 | 15:42 |
| Jul | 63% | 50% | 6.3 | 15:23 |
| Aug | 62% | 49% | 5.4 | 14:07 |
| Sep | 71% | 61% | 3.8 | 12:28 |
| Oct | 82% | 67% | 2.4 | 10:50 |
| Nov | 90% | 76% | 1.4 | 9:23 |
| Dec | 92% | 76% | 1.1 | 8:41 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Zagreb is like
The warmest month is July, with an average high of 29 °C85 °F and a low of 17 °C63 °F. The coldest is January, when highs average 3 °C37 °F and lows −4 °C25 °F. Seasons are strongly marked: the warmest month is on average 23.6 °C42.5 °F warmer than the coldest.
Annual precipitation is moderate at about 906 mm36 in. The wettest three-month stretch is August–October, which brings 30% of the annual total. The wettest month is September (107 mm4.2 in), the driest is January (52 mm2.0 in).
Relative humidity ranges from 62% in August to 92% in December. The clearest skies (lowest average cloud amount, 49%) are typical of August. Average wind speed near the ground ranges from 6 km/h (4 mph) in August to 8 km/h (5 mph) in March. Daylight lasts from about 8.7 hours in December to 15.7 hours in June.
A lasting snow cover is typical in December–February. In those months the average snow depth in the reanalysis exceeds 10 cm. It is deepest in January, at about 15 cm.
Best time to visit Zagreb
Based on these averages, the most comfortable months for sightseeing and outdoor activities are May–September. Average highs then reach 22 °C71 °F to 29 °C85 °F. Precipitation is 82 mm3.2 in to 107 mm4.2 in per month.
The most challenging month is January, which is cold, with average highs of 3 °C37 °F.
Comfort score: months are ranked by how close they come to an ideal. That means an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Zagreb
- Winter (December–February) — highs 337 to 5 °C41 °F, lows −425 to −2 °C28 °F, about 58 mm2.3 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1152 to 22 °C71 °F, lows 134 to 11 °C51 °F, about 71 mm2.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
- Summer (June–August) — highs 2679 to 29 °C85 °F, lows 1559 to 17 °C63 °F, about 83 mm3.3 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and an extra layer for the cooler mornings and evenings.
- Autumn (September–November) — highs 1050 to 23 °C73 °F, lows 236 to 11 °C53 °F, about 90 mm3.5 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Zagreb compares
The nearest larger place is Vienna, about 268 km to the north. Compared with it, Zagreb is on average 0.4 °C0.8 °F warmer. It receives 23% more precipitation (906 mm36 in vs 737 mm29 in). The difference is largest in August (1.1 °C1.9 °F warmer).
World Climates covers 3 places in Croatia. By annual mean temperature, Zagreb is the 3rd warmest of them. By annual precipitation, it is the 3rd wettest. See all of them on the Croatia climate page.
Some places in other countries have a very similar pattern of temperature and rainfall. The closest matches are Banja Luka (Bosnia and Herzegovina, Cfa), Pécs (Hungary, Dfa) and Mitrovicë (Kosovo, Dfa).
Nearby places
- Climate in Ljubljana 117 km · 11 °C52 °F · 1,051 mm41 in
- Climate in Rijeka 131 km · 13 °C56 °F · 1,197 mm47 in
- Climate in Graz 145 km · 10 °C51 °F · 832 mm33 in
- Climate in Banja Luka 150 km · 12 °C54 °F · 857 mm34 in
- Climate in Klagenfurt am Wörthersee 157 km · 10 °C51 °F · 1,060 mm42 in
- Climate in Trieste 172 km · 15 °C59 °F · 1,026 mm40 in
- Climate in Pécs 176 km · 12 °C53 °F · 673 mm27 in
- Climate in Udine 214 km · 14 °C56 °F · 1,074 mm42 in
Frequently asked questions
What is the warmest month in Zagreb?
July is the warmest month in Zagreb. Its average high is 29 °C (85 °F) and its average low is 17 °C (63 °F).
What is the coldest month in Zagreb?
January is the coldest month. Its average high is 3 °C (37 °F) and its average low is -4 °C (25 °F).
When does it rain the most in Zagreb?
September is the wettest month with about 107 mm (4.2 in) of precipitation. January is the driest with about 52 mm (2.0 in).
What is the best time to visit Zagreb?
Judging by long-term averages, the most comfortable months are May–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station. So they can differ from airport records. The gaps are largest on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 195 m, while Zagreb lies at about 135 m. Temperatures on this page were therefore adjusted by +0.4 °C0.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.