Warsaw weather in September
Warsaw in September averages 14°C (58°F), 50 mm of rain and 7.7 hours of sun a day.
Of the twelve months in Warsaw, September is the fifth warmest, the fifth wettest and the sixth sunniest.
- Average temp
- 14°C (58°F)
10–19°C · 49–66°F
- Rainfall
- 50 mm
Showers likely
- Sunshine
- 7.7 h
hours per day
What is Warsaw like in September?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Warsaw in September?
A light rain jacket
About 50 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 10°C (49°F).
September compared with August and October
September in Warsaw is 5°C cooler than August and 13 mm drier than it, which averages 19°C (67°F).
September in Warsaw is 5.2°C warmer than October and 10 mm wetter than it, which averages 9°C (48°F).
Daylight in Warsaw in September
On 15 September the sun is up for 12 hours 39 minutes in Warsaw, rising about 06:10 and setting about 18:50 local time.
September ends 1 hour 56 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 4 hours 6 minutes short of June, the longest-lit month here.
Where to stay in Warsaw
Dates are a starting point for September.
Travel guides for Warsaw
What to read before you book.
Warsaw weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -2°C / 29°F | 31 mm |
| February | 0°C / 31°F | 29 mm |
| March | 3°C / 38°F | 29 mm |
| April | 9°C / 49°F | 36 mm |
| May | 14°C / 58°F | 56 mm |
| June | 18°C / 64°F | 63 mm |
| July | 20°C / 68°F | 83 mm |
| August | 19°C / 67°F | 63 mm |
| September | 14°C / 58°F | 50 mm |
| October | 9°C / 48°F | 40 mm |
| November | 4°C / 39°F | 36 mm |
| December | 0°C / 32°F | 37 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about Warsaw in September
September climate averages for Warsaw, 1991–2020.
Warsaw averages 14°C (58°F) in September, ranging from about 10°C (49°F) at night to 19°C (66°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 50 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 14°C (58°F) against 9°C (48°F) in October — 5.2°C warmer.
September is 5°C cooler than August, and 13 mm drier.
Yes. September falls inside the most comfortable stretch of the year here, April to September, on temperature and rainfall together.
About 7.7 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 39 minutes of daylight in mid-September, against 16 hours 45 minutes in June and 7 hours 44 minutes in December.
On 15 September, sunrise is about 06:10 and sunset about 18:50 local time. Both shift across the month — the month ends 1 hour 56 minutes shorter than it starts.
