Measurements:
°C
°F
Gdansk
70°F
NE 7 mph
Feels like: 70°F
Precip: 60%
World Resorts Poland Gdansk Weather

Gdansk Sea Water Temperature

Current Sea Water Temperature:
+65.8°F
Maximum Sea Water Temperature in September: 72.0°F
Minimum Sea Water Temperature in September: 57.2°F
Average water temperature in September: 64.7°F

Sea Water Temperature for the Last 10 Days:

September 08 65.8°F September 03 67.8°F
September 07 65.6°F September 02 68.0°F
September 06 66.0°F September 01 68.6°F
September 05 66.8°F August 31 68.6°F
September 04 67.2°F August 30 69.2°F

When is the Warmest Sea for Gdansk?

According to our data for the last three years for Gdansk the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Gdansk was 69.0°F. The maximum and minimum values were 67.6°F and 70.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Gdansk was 67.8°F. The maximum and minimum values were 65.2°F and 73.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Gdansk was 65.3°F. The maximum and minimum values were 61.2°F and 68.4°F respectively.

Best Time to Visit Gdansk
The most sunny months:
June 13 days
August 13 days
May 12 days
The most warm months:
August 74.2 °F
July 73.1 °F
June 69.5 °F
Warmest sea temperature:
August 69.4 °F
July 67.5 °F
September 64.7 °F
The most cold months:
January 31.6 °F
February 33.6 °F
December 36.0 °F
The most rainy months:
July 6 days
August 5 days
May 4 days
The most windy months:
December 12 mph
January 11 mph
February 11 mph

Gdansk on the Weather Map

Poland Resorts:
NAME
Gdansk +70
Gdynia +68
Katowice +76
Krakow +74
Krynica Morska +68
Leba +66
Miedzyzdroje +68
Sopot +68
Szczecin +68
Ustka +66
Vladyslawowo +68
Warsaw +78
Wisla +72
Wroclaw +78
Zakopane +58
24 Hours Weather Forecast
Gdansk
Local time: 21:43
09 sep, wednesday
0000 66°F
NE
5 mph
0300 66°F
N
7 mph
0600 64°F
NE
8 mph
0900 72°F
NE
9 mph
1200 74°F
NE
12 mph
1500 76°F
E
12 mph
1800 70°F
E
9 mph
2100 62°F
E
8 mph