Zagreb weather in October

October in Zagreb: nice, rainy, with clean air — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Zagreb🇭🇷 Croatia · Balkans · City76
  1. 53Jan
  2. 65Feb
  3. 74Mar
  4. 86Apr
  5. 91May
  6. 83Jun
  7. 78Jul
  8. 81Aug
  9. 89Sep
  10. 76Oct
  11. 61Nov
  12. 54Dec

#7 of 12 months in Zagreb · #694 of 1413 destinations to visit in October · comfort 76/100 (tier B)

Days
18°C
Nights
10°C
Wet days
9
Sun
7.3 h
Humidity
81%
Daylight
11 h
Zagreb, Croatia
Photo: Damir K · Pexels

Traveller notes on Zagreb in October

Other months in Zagreb

Regulars are specific that overnight temperatures here typically don't drop below 20C this month, warm enough to walk around comfortably with no sleeves well after dark. Our row backs that hot, genuinely dry read, 29.7C reading as a hot 31C, over 19.1C nights, with rain light at 66.1mm across just 5.5 days and humidity at 68 percent. Regulars are consistent the heat can turn genuinely intense at midday, with some describing streets feeling like they're melting during the hottest stretch, prompting many locals to escape to the coast or nearby mountains rather than stay in the city. Shade, water and pacing outdoor sightseeing around the cooler morning and evening hours are the standard advice. The record: 11.3 hours of sun, an 11.3 kph wind and AQI 49.
NightsStayAboveTwentyNoSleevesNeeded · August · 1 month ago · Read more on Tripadvisor ↗
Regulars describe this as the month the country's first real summer heat typically lands, often catching visitors still dressed for spring as highs jump quickly from the high teens to 25C-plus within the space of a couple of weeks. Our row backs the warm shift, 28.3C reading as a real 30C, over 18.2C nights, with 78.1mm of rain across 8.2 days - regulars note the swing between years is real too, one describing an extremely hot 30-35C visit while another the year before got rainy, humid weather instead. The practical read is to pack light layers rather than commit fully to summer clothes on the strength of the calendar date alone. The record: humidity 70 percent, 12 hours of sun, a 12.1 kph wind and AQI 54.
CaughtInSpringClothesWhenSummerArrives · June · 1 month ago · Read more on Tripadvisor ↗
Advent here starts the last weekend of November and runs to the middle of January, with events every day rather than only at weekends, and one local calls December their favourite month in the city. Their crowd advice is the first half of the month; it fills as Christmas approaches. On weather they are unromantic - gloomy and wet, or if you are lucky clear and cold - and they tell you not to expect snow. Our row backs both halves: 87 percent humidity with only 4.4 hours of sun inside 8.7 of daylight, 7.2C days that feel like 5C, 1.8C nights that feel like minus 1, and 6.3cm of snow in the whole month. The record: 67.9mm of rain across 6.7 days and AQI 66.
GloomyAndWetOrClearAndCold · December · 1 month ago · Read more on Tripadvisor ↗
April in Zagreb is pleasant, occasionally rainy and definitively pre-season. Regulars give daily maxima between 12 and 20C with nights of 4 to 9C and about six wet days, against our row's 18.9C, 8.9C and 7.2 precipitation days - and they are firm that early April is not yet the warm part, while May is. What April buys is the country before it fills: the atmosphere is unhurried, the sites are quiet and prices are pre-season. The cost is that some things have not opened yet, since a good many wineries and restaurants run May to October. Swimming is out of the question anywhere in Croatia this month whatever your constitution. The record: feels-like 17C by day and 7C at night, 0.6cm of snow still in the normal and 9.8 hours of sun.
BeforeTheSeasonStarts · April · 1 month ago · Read more on Tripadvisor ↗

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Zagreb climate normals — October

Daytime high18°C / 64°F😎 nice
Nighttime low10°C / 51°F
Feels like (high)17°C / 63°F
Rainfall91 mm / 3.6 in🌧 rainy
Rainy days9 days
Humidity81%💦 very humid
Dew point9°C / 48°F
Sunshine7.3 h/day
Daylight10.9 h
Wind11 km/h / 7 mph
Air quality (US AQI)46🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Zagreb in October

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyAll Saints at Mirogoj, school holidays in 4 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Zagreb's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherZagreb's best weather comes in April, May and September — separate windows, not one continuous season.

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Best weatherFair weatherToughest weather

What's on in Zagreb in October

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Fog in the Sava basin

    15 Oct – 31 Dec · usuallyFog seasonRisk

    Cold air pools between Medvednica and the river and the city sits under grey for days at a time. The funicular up to the Upper Town is the cheap trick: it often comes out above it.

  • Holiday

    All Saints at Mirogoj

    30 Oct – 2 Nov · usuallyNational holidayCrowded

    For All Saints' Day families fill Mirogoj, the arcaded city cemetery, and after dark it glows with thousands of candles. A public holiday, and traffic around the cemetery is heavy for several days. Source ↗

What's on around the world in October →

Nearby, and something's on

Within 300 km of Zagreb — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Zagreb?

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Zagreb in October — FAQ

Is October a good time to visit Zagreb?
October in Zagreb: nice, rainy, with clean air — a great time to visit. It ranks #7 of 12 months for Zagreb on SeasonMap's comfort score (76/100).
What is the weather like in Zagreb in October?
In October, Zagreb averages a daily high of 17.9°C and a low of 10.3°C, with about 91.4 mm of rain over roughly 8.5 rainy days.
What is the air quality in Zagreb in October?
Zagreb has a mean US Air Quality Index of about 46 in October.

Within 300 km: Plitvice Lakes' Beech forest turns around 5 Oct – 10 Nov, and Ljubljana's Open Kitchen food market around 15 Mar – 31 Oct.