Measurements:
°C
°F
Gdansk
60°F
SE 14 mph
Feels like: 56°F
Precip: 21%
World Resorts Poland Gdansk Weather

Gdansk Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in July: 75.8°F
Minimum Sea Water Temperature in July: 60.6°F
Average water temperature in July: 67.5°F

Sea Water Temperature for the Last 10 Days:

July 09 65.6°F July 04 72.2°F
July 08 66.8°F July 03 73.8°F
July 07 67.8°F July 02 73.0°F
July 06 68.4°F July 01 73.8°F
July 05 71.8°F June 30 74.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Gdansk was 68.7°F. The maximum and minimum values were 66.0°F and 71.4°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Gdansk was 66.9°F. The maximum and minimum values were 62.0°F and 71.0°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 74.3 °F
July 73.3 °F
June 69.5 °F
Warmest sea temperature:
August 69.5 °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 7 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 +60
Gdynia +58
Krakow +50
Krynica Morska +58
Leba +62
Miedzyzdroje +66
Poznan +54
Sopot +58
Szczecin +56
Ustka +60
Vladyslawowo +56
Warsaw +54
Wisla +50
Wroclaw +54
Zakopane +40
24 Hours Weather Forecast
Gdansk
Local time: 01:31
10 jul, friday
0300 60°F
SE
14 mph
0600 62°F
SE
17 mph
0900 64°F
S
19 mph
1200 66°F
S
17 mph
1500 66°F
S
16 mph
1800 64°F
S
15 mph
2100 60°F
S
12 mph
11 jul, saturday
0000 58°F
SE
10 mph