The month in detail
What to expect in September
Autumn in Warsaw is often underrated: 20°C, golden light and declining crowds. An interesting window. Expect rain on 27% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if August (8.5/10) remains theoretically better.
September ranks 4 out of 12 months in Warsaw. Compared to August: −5°C daytime, −2.6h 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
11°
Daylight
12.4h of daylight
Air quality
good
AQI 29
Compare
Is September the right month?
The best month in Warsaw is August (8.5/10), 0.9 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 · Warsaw
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Warsaw
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 · 25°C
❄️Coolest monthJanuary · 2°C
🌧️Rainiest month ⓘJune · 30%
🏛️ 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 Warsaw ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
PolandTemperate climate with a 8.5 → 0.8 gap between best and worst month. 10 years of ERA5 data to choose by project.
52.23°N · 21.01°E
Questions
Frequently asked questions
What is the best time to visit Warsaw?
July is the best month with 25.0°C highs, 16.0°C lows, 9.5h of sunshine and 30.0% rainy days. The months of July & August offer comparable conditions.
How many hours of sunshine does Warsaw get in July?
Warsaw averages 9.5 sunshine hours per day in July. It is the sunniest month with a climate score of 7.9/10.
What is the rainiest month in Warsaw?
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 Warsaw in July?
In July, overnight lows reach 16.0°C, while afternoon highs average 25.0°C.
Is Warsaw good in winter?
In winter (December-February), Warsaw scores 0.9/10 on average — Difficult period — prefer the peak season.. The best month overall remains July with a score of 7.9/10.
When should you avoid Warsaw?
December is the most difficult month to visit Warsaw, 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 Warsaw in September?
The average UV index reaches 4 in September in Warsaw (moderate), with about 12.4h of daylight. Protect during midday hours.