The month in detail
What to expect in September
Autumn in Poznań is often underrated: 68°F, golden light and declining crowds. An interesting window. Rain risk remains low (24% of days), leaving good room for outdoor activities. A good balance between weather and crowds, even if June (8.3/10) remains theoretically better.
September ranks 4 out of 12 months in Poznań. Compared to August: −9°F daytime, 5 pts fewer rainy days, −2.7h of sun per day.
This month's conditions
What it's like in September
UV index
4 · moderate
protect during midday hours
Feels like
comfortable
10°
Daylight
12.4h of daylight
Air quality
good
AQI 28
Compare
Is September the right month?
The best month in Poznań is June (8.3/10), 0.8 pt higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Poznań
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Poznań
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.
Country · Poland
🗣️LanguagePolish
💶CurrencyPolish Zloty (zł)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘCheap · 2/5
🌡️ Climate
🌍Climate typeTemperate
📈Climate trend ⓘStable
🔥Hottest monthJuly · 77°F
❄️Coolest monthJanuary · 37°F
🌧️Rainiest month ⓘDecember · 31%
🏛️ City break
📅Tourist peak seasonJune → August
☔Indoor sights ⓘYear-round
🚇Public transportGood
🛂VisaSchengen · 90 days
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Poznań ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
PolandTemperate climate with a 8.3 → 0.8 gap between best and worst month. 10 years of ERA5 data to choose by project.
52.41°N · 16.93°E
Questions
Frequently asked questions
What is the best time to visit Poznań?
July is the best month with 77°F highs, 59°F lows, 8.7h of sunshine and 30.0% rainy days. The months of July & June offer comparable conditions.
How many hours of sunshine does Poznań get in July?
Poznań averages 8.7 sunshine hours per day in July. It is the sunniest month with a climate score of 7.8/10.
What is the rainiest month in Poznań?
December is the most unfavourable month with December has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Poznań in July?
In July, overnight lows reach 59°F, while afternoon highs average 77°F.
Is Poznań good in winter?
In winter (December-February), Poznań scores 0.9/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 7.8/10.
When should you avoid Poznań?
December is the most difficult month to visit Poznań, with December has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Do you need sun protection in Poznań in September?
The average UV index reaches 4 in September in Poznań (moderate), with about 12.4h of daylight. Protect during midday hours.