World Resorts Poland Gdansk Weather

Gdansk Sea Temperature in September

Average sea water temperature in September:
+63.2°F
Minimum sea water temperature in September: 69.8°F
Maximum sea water temperature in September: 56.5°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 63.7°F. The highest and lowest sea temperatures during the month were 66.6°F and 60.1°F.

Monthly sea water temperature in Gdansk, °F

Which Poland resorts have warmest sea in September?

Place name September 2025 September 2024
Krynica Morska 64.7°F 66.2°F
Szczecin 64.4°F 66.1°F
Miedzyzdroje 64.3°F 65.4°F
Gdynia 64.3°F 65.8°F
Leba 64.2°F 62.9°F
Vladyslawowo 64.0°F 65.1°F
Sopot 63.9°F 65.2°F
Ustka 63.8°F 62.9°F
Gdansk 63.7°F 65.0°F
Wisla 32.0°F 32.0°F

Best time for vacation in Gdansk

Sunniest months:
June 13 days
August 13 days
May 12 days
Warmest months:
August 71.8 °F
July 70.9 °F
June 67.6 °F
Warmest sea temp:
August 67.5 °F
July 65.7 °F
September 63.2 °F
Coldest months:
January 33.9 °F
February 35.6 °F
December 37.4 °F
Rainiest months:
July 7 days
August 5 days
May 4 days
Windiest months:
December 12.1 mph
January 11.6 mph
February 11.0 mph

Gdansk on a weather map

Gdansk
+18°F
NW 9 mph
Feels like: +7°F
Precip.: 0%
Places in Poland:
Name
°F
+3°F
+18°F
+19°F
+25°F
+18°F
+21°F
+16°F
+14°F
+25°F
+28°F
+23°F
+21°F
+27°F
+27°F
24 Hours Forecast
Gdansk
Local time: 00:54
January 13, tuesday
0300
18°F
N
9 mph
0600
19°F
NW
9 mph
0900
19°F
NW
9 mph
1200
21°F
NW
8 mph
1500
21°F
NW
6 mph
1800
16°F
NW
6 mph
2100
12°F
N
7 mph
January 14, wednesday
0000
10°F
N
7 mph
Units of measurement: °C / °F