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Baltic Sea
Ustka, Poland © Andrzej Pietrzyk
Baltic Sea Water Temperature: Current & Historical Data for Coastal Resorts
We find every spot where you can swim and tell you what the water temperature is there today and throughout the year
Current water temperature
32°F
minimal
36°F
average
38°F
maximum
Graph of Water Temperature Changes in the Baltic Sea Over the Last 60 Days
Water temperature in the Baltic Sea by month
| Month | Minimum | Maximum |
|---|---|---|
| January | 28°F | 45°F |
| February | 30°F | 43°F |
| March | 30°F | 46°F |
| April | 30°F | 55°F |
| May | 30°F | 68°F |
| June | 43°F | 75°F |
| July | 54°F | 77°F |
| August | 54°F | 79°F |
| September | 48°F | 72°F |
| October | 32°F | 66°F |
| November | 32°F | 57°F |
| December | 30°F | 50°F |
What is known about the Baltic Sea?
Szczecin, Poland © Tomasz MajkaThe Baltic Sea is known for its relatively low salinity and significant seasonal variations in water temperature. During the summer months, from June to August, sea temperatures along the coast can range from 60–68°F (16–20°C), with the warmest waters typically found in the southern parts, such as the coasts of Poland, Germany, and the Baltic states. In especially warm summers, sheltered bays and shallow areas can even exceed 70°F (21°C), making swimming more comfortable. However, the northern regions, including Sweden and Finland, usually have cooler waters, often staying between 55–63°F (13–17°C) even at peak summer.
In winter, the Baltic Sea becomes much colder, with water temperatures dropping to 32–41°F (0–5°C), and many coastal areas, especially in the north and east, experiencing ice cover. This makes swimming nearly impossible without proper cold-water gear. Despite the cold, winter swimming has become popular in countries like Finland and Estonia, where people take icy dips for health benefits. Overall, the Baltic Sea offers a good opportunity for summer swimming, especially in its southern parts, but outside of the warm season, the water is too cold for most swimmers without specialized equipment.
List of Countries Bordering the Baltic Sea
Popular Resorts of the Baltic Sea with the Warmest Water Today
Popular Resorts on the Baltic Sea Coast
- Copenhagen, Denmark
- Zelenogradsk, Russia
- Stockholm, Sweden
- Kaliningradskiy Zaliv, Russia
- Gdansk, Poland
- Riga, Latvia
- Jurmala, Latvia
- Palanga, Lithuania
- Lübeck, Germany
- Gdynia, Poland
- Svetlogorsk, Russia
- Liepaja, Latvia
- Travemünde, Germany
- Kiel, Germany
- Kalmar, Sweden
Wolin, Poland © Andrzej Rejowski
Nearest Seas and Oceans
Frequently Asked Questions About the Baltic Sea
What is the water temperature in the Baltic Sea right now?
The water temperature in the Baltic Sea today ranges from 32°F (-0°C) in Kumlinge (Finland) to 37°F (3°C) in Mechelinki (Poland).
Is it possible to swim in the Baltic Sea?
Yes, it is possible to swim in the Baltic Sea, although the water temperature can be quite cold, especially during the colder months.
In which month does the Baltic Sea have the highest and lowest water temperatures?
The highest water temperature in the Baltic Sea occurs in August, reaching 79°F (26°C), while the lowest is in January, dropping to 28°F (-2°C).
Is the Baltic Sea colder than the Gulf of Finland?
No, the Baltic Sea is slightly warmer than the Gulf of Finland, as its average annual water temperature is 48°F (9°C), while the Gulf of Finland's is 46°F (8°C).
Which countries are washed by the Baltic Sea?
The Baltic Sea washes Estonia, Poland, Russia, Latvia, Lithuania, Denmark, Germany, Finland, and Sweden.
What are the most popular resorts located on the Baltic Sea?
The most popular beach destinations on the Baltic Sea are Gdansk (Poland), Copenhagen (Denmark), Kolobrzeg (Poland), Palanga (Lithuania), Gdynia (Poland), Kerteminde (Denmark), Sopot (Poland), Jurmala (Latvia), Holtenau (Germany), Baltiisk (Russia).
Do you have any extended or additional information about the Baltic Sea?
The Baltic Sea is an inland sea located in northern Europe. The sea washes ten countries at once, including Russia, Latvia and Lithuania. Such resorts as Kaliningrad, Palanga, Jurmala and Gdansk are located on the shores of the Baltic Sea.
The Baltic Sea climate has a pronounced continental character. The peculiar configuration of the sea and its considerable length from north to south and from west to east create differences in climatic conditions in different regions of the sea.
The Icelandic minimum, as well as the Siberian and Azores anticyclones, have the most significant influence on the weather. The nature of their interaction determines the seasonal features of the weather. In autumn and especially winter time, the Icelandic minimum and the Siberian maximum interact intensively, which enhances cyclonic activity over the sea. In this regard, in the autumn-winter time, deep cyclones often pass, which bring with them cloudy weather with strong southwestern and westerly winds.
In summer, weak to moderate winds blow mostly westerly, northwestern and southwestern. They are associated with the cool and humid summer weather characteristic of the sea.
The water temperature in the Baltic Sea warms up above 20 degrees only at the end of June. But its maximum values still rarely exceed 22 degrees throughout the summer. The sea cools down slowly, in September you can still swim a little, the temperature at the end of the month drops to 17 degrees.
Do you have a few more photos of the the Baltic Sea?
Oestermalm, Sweden © Nuzhat Khan
Kallvik, Sweden © Nynke Sloot
Sopot, Poland © pixabay.com