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Ustka weather in September

Weather in Ustka: September

Average day temperature: 64.5°F
Average night temperature: 56.8°F
Sea water temperature: 62.5°F
Number of sunny days: 12 days
Day length: 11.6 - 13.8 hours
Number of rainy days: 3 days
Precipitation totals: 1.7 in.

Air temperature in September, °F

Show year:
2025
2024
2023

The highest day temperature during September of 2025 was 77°F. At the same time the lowest night temperature was 47°F. Daily and nightly averages during September were 65.8°F and 57.0°F.

Sea water temperature in Ustka in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 63.8°F. The highest and lowest sea temperatures during the month were 66.4°F and 59.9°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Ustka in September is 1.7 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 11.7 mph

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: 7.5.

Best time for vacation in Ustka

Sunniest months:
June 15 days
May 14 days
August 13 days
Warmest months:
August 70.4 °F
July 69.0 °F
June 65.4 °F
Warmest sea temp:
August 66.3 °F
July 65.0 °F
September 62.5 °F
Coldest months:
January 36.1 °F
February 37.1 °F
December 39.2 °F
Rainiest months:
July 5 days
August 4 days
January 4 days
Windiest months:
December 15.1 mph
January 14.8 mph
February 13.9 mph

Ustka on a weather map

Ustka
+36°F
NW 9 mph
Feels like: +30°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
Ustka
Local time: 04:01
December 05, friday
0600
37°F
NW
9 mph
0900
37°F
NW
10 mph
1200
41°F
NW
6 mph
1500
41°F
NW
8 mph
1800
39°F
NW
9 mph
2100
41°F
NW
9 mph
December 06, saturday
0000
41°F
N
9 mph
0300
41°F
N
11 mph
Units of measurement: °C / °F