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Photo by Kristijan Arsov on Unsplash

Croatia

Best time to visit Zagreb

When is it busiest here, and when is it quietest? The answer runs week by week through the region's own year, from official EU overnight-stay statistics.

Busiest week

AugustCrowd level 100

Wk 32 · 64,000 overnight stays

Quietest weeks

JanuaryCrowd level 0–2

Wk 2–4 · measured against the region's own year, not against other regions

Sweet spot

MarchCrowd level 21–29

Wk 11–13 · a good balance of weather comfort and crowd level

Warmest month

25 °CComfort 71

July · around 85 mm of rain in the month

Crowding Index 1.1 · As of 06/08/2026 · Crowding score 0–100, season-relative

Zagreb (Croatia) is quietest in January: across Wk 2–4 the crowd level runs from 0 to 2 out of 100. The busiest single week falls in August (Wk 32), at 100 out of 100 with roughly 64,000 overnight stays. Calculated from open official data; the values are modelled, not counted.

How we calculate

Click a week. The panel on the right explains why it is busy or quiet.

Weather profile

Weather comfort is an absolute scale (0 = poor, 100 = ideal) and a second axis next to the season-relative crowd level.

JanuaryØ 8
FebruaryØ 9
MarchØ 23
AprilØ 59
MayØ 68
JuneØ 75
JulyØ 89
AugustØ 97
SeptemberØ 85
OctoberØ 69
NovemberØ 43
DecemberØ 68
Colour = season-relative crowd levelBar = weather comfort (Sun & warmth), absolute 0–100

Why this week?

Crowd level21/100 · fairly quiet
quietbusy
Weather comfort6/100 · Sun & warmth

-28 % versus the region's annual average.

Contributing months
March (100 %)
Overnight stays/week
34,717
School-holiday pressure (source markets)
3 % of source markets on school holidays · -2 % crowding from holidays
Main source markets
Germany (27 %) · Croatia (12 %) · Slovenia (10 %) · 90% of guests modelled
Region range
26,834–64,030 (avg 48,391)
Base years
2022, 2023, 2024, 2025 (excluding 2020, 2021)

v1: Crowd-Score aus der Eurostat-Basisschicht (Übernachtungen), moduliert vom Schulferien-Druck der Quellmärkte, region-spezifisch gewichtet mit dem Quellland-Mix. Season-relativ zur Region. Event-Schichten folgen.

Pre-filled with the next date in week 11.

DestinationZagreb
Travel datesPick a week in the calendar

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Photos: Johny Goerend · reisetopia · Dino Reichmuth on Unsplash

The year as a table to read and to cite: crowd level for every month, plus weather comfort and temperature from the climate normals.

Crowd level, weather comfort and temperature in Zagreb by month – crowd score 0–100, season-relative to the region's own annual peak
MonthCrowd level0–100, season-relativeWeather comfort0–100, profile “mild”Avg temperature
January8163 °C
February9245 °C
March23389 °C
April595914 °C
May686918 °C
June757624 °C
July897125 °C
August977325 °C
September857420 °C
October696215 °C
November43348 °C
December68184 °C

The crowd level is season-relative: 100 is the annual peak of Zagreb itself, not the busiest destination in Europe. The figures say when it is quiet here — not where it is quieter than elsewhere.

Weather comfort 0–100 from the climate normals, profile “mild” – the same profile as the recommendation above, not the selection in the calendar. A “–” means the data for that month is missing.

Index 1.1 · As of 06/08/2026

Three windows from the model, weighing crowd level against weather comfort.

Recommended

Wk 11–13

Best balance of weather comfort and space: crowd level around 25 out of 100, weather comfort near 42.

Crowd level
21–29
Comfort
37–47
Plan this period
Good alternative

Wk 39–41

A quieter choice in the other half of the year: crowd level around 70, weather comfort near 69.

Crowd level
65–80
Comfort
65–72
Plan this period
Avoid

Wk 31–33

The region's peak: crowd level around 98 out of 100. Only if the dates are fixed.

Crowd level
96–100
Comfort
71–72

How dense it gets here measured against Europe — on the one figure that lets two destinations be compared.

Crowd density in Zagreb
75.38

overnight stays per km² and week

European median
11.80

overnight stays per km² and week

Furthest from the median: December, at 12.5× the value. Closest to the median: July, at 4.3× the value.

Mean across 12 months, weighted by their weeks. This density compares destinations with each other. The crowd level in the table above compares Zagreb with itself. The two figures are never combined.

Index 1.1 · As of 06/08/2026

Average temperature with day/night range and precipitation across the twelve months.

  • Avg temperature
  • Day/night range
  • Precipitation
0260125Jan: 89 mmFeb: 40 mmMar: 90 mmApr: 76 mmMay: 120 mmJun: 65 mmJul: 85 mmAug: 72 mmSep: 94 mmOct: 95 mmNov: 83 mmDec: 64 mmJan: Ø 2 °C · Day 3 °C · Night 1 °CFeb: Ø 4 °C · Day 5 °C · Night 2 °CMar: Ø 7 °C · Day 9 °C · Night 5 °CApr: Ø 12 °C · Day 14 °C · Night 9 °CMay: Ø 16 °C · Day 18 °C · Night 14 °CJun: Ø 22 °C · Day 24 °C · Night 19 °CJul: Ø 23 °C · Day 25 °C · Night 21 °CAug: Ø 23 °C · Day 25 °C · Night 21 °CSep: Ø 18 °C · Day 20 °C · Night 16 °COct: Ø 13 °C · Day 15 °C · Night 12 °CNov: Ø 7 °C · Day 8 °C · Night 6 °CDec: Ø 3 °C · Day 4 °C · Night 2 °CJanFebMarAprMayJunJulAugSepOctNovDec°Cmm
Monthly climate values
MonthAvg temperature (°C)Day avg (°C)Night avg (°C)Precipitation (mm)
Jan23189
Feb45240
Mar79590
Apr1214976
May161814120
Jun22241965
Jul23252185
Aug23252172
Sep18201694
Oct13151295
Nov78683
Dec34264

The band shows mean daytime to nighttime temperature. Precipitation shown as monthly total (mm). Typical monthly value (climate normal), not a forecast.

Average daily solar energy across the twelve months. The higher the value, the sunnier.

3.7 kWh/m²/Tag
Annual average
Jun
Sunniest month
0.07.0Jan: 1.4 kWh/m²/TagFeb: 2.2 kWh/m²/TagMar: 3.6 kWh/m²/TagApr: 4.8 kWh/m²/TagMay: 5.3 kWh/m²/TagJun: 6.3 kWh/m²/TagJul: 6.2 kWh/m²/TagAug: 5.3 kWh/m²/TagSep: 3.8 kWh/m²/TagOct: 2.6 kWh/m²/TagNov: 1.3 kWh/m²/TagDec: 1.1 kWh/m²/TagJanFebMarAprMayJunJulAugSepOctNovDeckWh
Monthly solar irradiance
MonthSolar irradiance (kWh/m²/day)
Jan1.4
Feb2.2
Mar3.6
Apr4.8
May5.3
Jun6.3
Jul6.2
Aug5.3
Sep3.8
Oct2.6
Nov1.3
Dec1.1

Mean daily solar irradiance in kWh/m²/day (≈ peak-sun-hours equivalent). Typical monthly value (climate normal), not a forecast. Generated using Copernicus Climate Change Service information 2025.

Destination airports of Zagreb and every European departure airport with a direct connection to them.

Destination airports

Select a destination airport to see the direct departure airports.

“Directly reachable” means a direct connection exists according to our sources. We do not show a live timetable. Availability and flight days can vary by season and airline.

Data sources: direct connections from Wikipedia (“Airlines and destinations”, licensed CC BY-SA 4.0, aggregated and modified by us), cross-checked with Eurostat, Destatis and the UK Civil Aviation Authority; airport data from OurAirports (Public Domain). The derived connection data is licensed under CC BY-SA 4.0.

Data as of: August 2026

Short answers on timing, weather and getting there, all from the data on this page.

When is the best time to visit Zagreb?

The best time to visit Zagreb is March (Wk 11–13): in this window the crowd level is low at around 25 out of 100 and weather comfort is good at about 42 out of 100.

When is Zagreb quietest?

January (Wk 2–4) is the quietest time in Zagreb. Crowd levels there sit at 0–2 out of 100, the lowest across the year.

When is Zagreb busiest?

Zagreb is busiest in August (Wk 32) with around 64,000 overnight stays in the peak week.

What is the weather like in Zagreb and when is it warmest?

It is warmest in Zagreb in July with an average of 25 °C and around 85 mm of rain in the month.

How do you get to Zagreb?

Zagreb is reachable via the destination airport Zagreb International Airport (ZAG) with direct flights.

All figures are approximations derived from open data (crowd level from Eurostat overnight stays, climate from Copernicus/ERA5-Land), not measurements.

The Crowd Report names the emptiest weeks of the coming months — for every region, not just this one. Free, unsubscribe any time.

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v1 approximation, calculated from Eurostat overnight stays. Day tourism and cruises (Venice, Dubrovnik …) are still missing, so we show these destinations as quieter than they are. The crowd score is a model-based forecast, not a measurement.

How we calculate