Measurements:
°C
°F
Gdynia
46°F
W 8 mph
Feels like: 40°F
Precip: 0%
World Resorts Poland Gdynia Weather

Gdynia Sea Water Temperature

Current Sea Water Temperature:
+37.4°F
Maximum Sea Water Temperature in April: 49.8°F
Minimum Sea Water Temperature in April: 31.2°F
Average water temperature in April: 40.7°F

Sea Water Temperature for the Last 10 Days:

April 12 37.4°F April 07 38.2°F
April 11 37.6°F April 06 38.6°F
April 10 37.4°F April 05 37.8°F
April 09 37.0°F April 04 38.0°F
April 08 37.4°F April 03 38.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Gdynia was 68.6°F. The maximum and minimum values were 65.6°F and 71.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Gdynia was 66.3°F. The maximum and minimum values were 61.0°F and 70.2°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 72.6 °F
July 71.8 °F
June 67.2 °F
Warmest sea temperature:
August 69.7 °F
July 67.6 °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 +50
Gdynia +46
Krakow +56
Krynica Morska +52
Leba +48
Miedzyzdroje +48
Poznan +56
Sopot +46
Szczecin +54
Ustka +52
Vladyslawowo +52
Warsaw +54
Wisla +60
Wroclaw +58
Zakopane +50
24 Hours Weather Forecast
Gdynia
Local time: 14:57
12 apr, sunday
1500 46°F
W
8 mph
1800 44°F
SW
8 mph
2100 42°F
NW
11 mph
13 apr, monday
0000 38°F
NW
7 mph
0300 36°F
NW
7 mph
0600 34°F
NW
8 mph
0900 40°F
NW
11 mph
1200 44°F
W
13 mph