Measurements:
°C
°F
Gdynia
68°F
E 5 mph
Feels like: 68°F
Precip: 50%
World Resorts Poland Gdynia Weather

Gdynia Sea Water Temperature

Current Sea Water Temperature:
+66.2°F
Maximum Sea Water Temperature in September: 73.0°F
Minimum Sea Water Temperature in September: 57.6°F
Average water temperature in September: 65.0°F

Sea Water Temperature for the Last 10 Days:

September 08 66.2°F September 03 66.8°F
September 07 66.2°F September 02 67.4°F
September 06 66.6°F September 01 67.8°F
September 05 66.6°F August 31 67.8°F
September 04 66.6°F August 30 67.2°F

When is the Warmest Sea for Gdynia?

According to our data for the last three years for Gdynia 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 Gdynia was 68.4°F. The maximum and minimum values were 66.8°F and 71.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Gdynia was 66.9°F. The maximum and minimum values were 63.4°F and 73.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Gdynia was 65.8°F. The maximum and minimum values were 62.0°F and 68.8°F respectively.

Best Time to Visit Gdynia
The most sunny months:
May 13 days
June 13 days
August 12 days
The most warm months:
August 72.5 °F
July 71.6 °F
June 67.3 °F
Warmest sea temperature:
August 69.6 °F
July 67.5 °F
September 65.0 °F
The most cold months:
January 33.0 °F
February 34.3 °F
December 37.2 °F
The most rainy months:
July 5 days
August 4 days
June 3 days
The most windy months:
December 13 mph
January 13 mph
February 12 mph

Gdynia 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
Gdynia
Local time: 21:43
09 sep, wednesday
0000 66°F
E
2 mph
0300 66°F
N
7 mph
0600 68°F
NE
10 mph
0900 70°F
NE
10 mph
1200 76°F
NE
14 mph
1500 72°F
E
11 mph
1800 68°F
E
11 mph
2100 62°F
E
9 mph