Poznań weather by month

The best time to visit Poznań is June to August — 92/100 in June, 26°C and 11 rainy days. The best season is summer, June to August (90/100 on average).

The worst month is January at 41/100 — cold, a little rain, clean air. See January →

Updated September 2026 · climate normals from ERA5 reanalysis

Planning the wider trip? Best time to visit Poland →

Poznań🇵🇱 Poland · Central Europe · City92
  1. 41Jan
  2. 52Feb
  3. 65Mar
  4. 77Apr
  5. 83May
  6. 92Jun
  7. 87Jul
  8. 90Aug
  9. 85Sep
  10. 69Oct
  11. 57Nov
  12. 45Dec

Best season: June to August (90/100 on average) · worst January (41/100)

Days
26°C
Nights
13°C
Wet days
11
Sun
12.2 h
Humidity
65%
Daylight
17 h
Poznań, Poland
Photo: Jakub Zerdzicki · Pexels

Poznań, month by month

Comfort score out of 100 for the kind of trip Poznań is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan41F4°C12 d3 hQuiet2
Feb52D6°C11 d5 hBusy2
Mar65C10°C9 d7 hBusy3
Apr77B16°C10 d10 hPeak3
May83A20°C10 d11 hBusy2
Jun92S26°C11 d12 hBusy2
Jul87A26°C12 d12 hBusy2
Aug90S26°C10 d11 hBusy1
Sep85A22°C8 d8 hShoulder1
Oct69C15°C12 d6 hShoulder1
Nov57D8°C9 d3 hPeak4
Dec45F5°C10 d2 hPeak3

What's on in Poznań through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

January
  • Trade fair weeks1 Jan – 31 DecSeason
March
  • Easter4–6 AprHoliday
April
  • Majówka, the May long weekend29 Apr – 5 May (usually)Holiday
June
  • Malta Festival15 Jun – 10 Jul (usually)Festival
November
  • St Martin's Day croissants10–12 NovFestival
  • Betlejem Poznańskie25 Nov – 27 Dec (usually)Festival
  • Winter smog10 Nov – 5 Mar (usually)Hazard

Everything on in Poznań through the year →

Crowds in Poznań in June

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.

BusySummer holidays in Poland, school holidays in 4 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Good to know before you go to Poznań

Real experiences from travellers' own write-ups, quoted with a link to the original.

Visas & entry

A guide to Poznan's Old Market Square explains the city's obsession with its mechanical goats, which butt heads on the town hall tower at noon and 3pm, a spectacle tracing back to a 1551 legend about two goats that escaped a kitchen and ended up fighting atop the tower during a royal banquet. Their crowd-timing tip: the square gets genuinely packed with day-trippers right around noon for the show, so locals tend to avoid the area in the early afternoon, making mornings or evenings the better window for anyone who wants the square without the crush.
Pieter on Tour · Read the original ↗

Traveller notes on Poznań

What people who have been say about the place — the year-round notes first, then month by month.

Forum posters describe January in Poland, Poznań included, as likely snowy and cold, though posters are direct this isn't guaranteed - one recent year turned out surprisingly mild, with temperatures well above 0C across much of the country. Posters generally describe the range of possible January days as genuinely wide: it could be +10C with heavy rain, -10C with heavy snowfall, sunny, or foggy, all within the same month. Posters consistently recommend checking a reliable Polish weather site closer to travel dates rather than relying on generic seasonal averages, given how variable a specific January in Poznań can turn out. Posters generally recommend preparing for cold, potentially snowy conditions while accepting that the exact experience varies significantly year to year.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗
Forum posters put July generally around 20-25C and pleasant, though occasional heat waves can push things warmer, and posters flag July as one of Poland's rainier months compared to May or September - with the caveat that many buildings lack air conditioning, so a heat wave can feel worse than the number suggests. For the visit itself, Poznan's Old Market Square with the town hall is called an absolute must, complete with a daily noon show of two mechanical goats butting heads on the tower - and the Old Town is described as lively and safe well into the evening. Visitors timing a trip for late June will just miss the Malta International Theatre Festival, though summer concerts pick up the slack in July.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Poznań's card on the map.