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Warsaw weather in September

Weather in Warsaw: September

Average day temperature: 68.7°F
Average night temperature: 56.1°F
Number of sunny days: 14 days
Day length: 11.7 - 13.6 hours
Number of rainy days: 2 days
Precipitation totals: 1.3 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 87°F. At the same time the lowest night temperature was 45°F. Daily and nightly averages during September were 70.5°F and 58.0°F.

Sunny, partly cloudy and cloudy days

Mostly all days in September are sunny but cloudy days are also possible.

Precipitation total in September, in.

Precipitation total value in Warsaw in September is 1.4 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 7.7 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.9.

Best time for vacation in Warsaw

Sunniest months:
August 15 days
September 14 days
June 13 days
Warmest months:
August 77.9 °F
July 77.5 °F
June 74.8 °F
Coldest months:
January 33.3 °F
February 36.1 °F
December 36.9 °F
Rainiest months:
June 4 days
July 4 days
May 4 days
Windiest months:
December 9.2 mph
January 9.1 mph
February 8.7 mph

Warsaw on a weather map

Warsaw
+37°F
W 7 mph
Feels like: +32°F
Precip.: 0%
Places in Poland:
Name
°F
+37°F
+39°F
+34°F
+39°F
+36°F
+37°F
+36°F
+36°F
+39°F
+37°F
+36°F
+37°F
+36°F
+34°F
24 Hours Forecast
Warsaw
Local time: 04:02
December 05, friday
0600
39°F
W
9 mph
0900
41°F
NW
9 mph
1200
45°F
NW
9 mph
1500
45°F
NW
8 mph
1800
45°F
NW
8 mph
2100
45°F
NW
7 mph
December 06, saturday
0000
43°F
NW
7 mph
0300
43°F
NW
6 mph
Units of measurement: °C / °F