This data the coastal Curonian Lagoon sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.
Water temperature in Curonian Lagoon today is 19.4°C. Based on our historical data over a period of ten years, the warmest water in this day in the Baltic Sea near Curonian Lagoon was recorded in 2024 and was 20.7°C, and the coldest was recorded in 2021 at 16°C. Sea water temperature in Curonian Lagoon is expected to drop to 16.7°C in the next 10 days. September average water temperature in Curonian Lagoon is 16.6°C, the minimum temperature is 12.2°C, and the maximum is 21.8°C.
The swimming season in Curonian Lagoon lasts from June to August. During those months, Curonian Lagoon water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Curonian Lagoon in winter reaches 3.1°C, in spring 7°C, in summer the average temperature rises to 19.1°C, and in autumn it is 12.2°C.
5 September 2025 |
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today temp |
19.4°C |
4 September 2025 |
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yesterday temp |
18.8°C |
The sea salinity in Curonian Lagoon is 7.17‰, and the average salinity of the World Ocean is 35‰.
Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Curonian Lagoon. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Curonian Lagoon. Data in table shown for 6 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)
0-3 h | 3-6 h | 6-9 h | 9-12 h |
---|---|---|---|
0' 8" | 0' 7" | 0' 6" | 0' 4" |
0.2 m | 0.18 m | 0.14 m | 0.1 m |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
0' 3" | 0' 2" | 0' 5" | 0' 6" |
0.07 m | 0.06 m | 0.13 m | 0.15 m |
Data in a table show Curonian Lagoon temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Curonian Lagoon.
0-3 h | 3-6 h | 6-9 h | 9-12 h |
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18.6°C | 17.9°C | 17.3°C | 18.2°C |
12-15 h | 15-18 h | 18-21 h | 21-24 h |
---|---|---|---|
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20.7°C | 22.5°C | 23°C | 20.4°C |
You may also be interested in other sections of our site for Curonian Lagoon: Sunrise and Sunset, Tides
These figures shows the average, minimum and maximum monthly sea temperature in Curonian Lagoon. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Curonian Lagoon on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve
Month | Avr | Min | Max | |
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January | 2.8°C | -0.3°C | 6.6°C | cold |
Sea water temperature in Curonian Lagoon in January | ||||
February | 1.7°C | -1°C | 4.3°C | cold |
Sea water temperature in Curonian Lagoon in February | ||||
March | 2.6°C | -0.4°C | 7°C | cold |
Sea water temperature in Curonian Lagoon in March | ||||
April | 6.4°C | 0.5°C | 13.6°C | cold |
Sea water temperature in Curonian Lagoon in April | ||||
May | 11.9°C | 5.5°C | 21.1°C | cold |
Sea water temperature in Curonian Lagoon in May | ||||
June | 17.4°C | 10.8°C | 24.6°C | cold |
Sea water temperature in Curonian Lagoon in June | ||||
July | 19.8°C | 15.4°C | 25.5°C | cold |
Sea water temperature in Curonian Lagoon in July | ||||
August | 20.1°C | 16.6°C | 26°C | warm |
Sea water temperature in Curonian Lagoon in August | ||||
September | 16.6°C | 12.2°C | 21.8°C | cold |
Sea water temperature in Curonian Lagoon in September | ||||
October | 11.8°C | 7.9°C | 17.1°C | cold |
Sea water temperature in Curonian Lagoon in October | ||||
November | 8.1°C | 3.2°C | 11.4°C | cold |
Sea water temperature in Curonian Lagoon in November | ||||
December | 4.7°C | 1.4°C | 7.9°C | cold |
Sea water temperature in Curonian Lagoon in December |