Sweden — Water Temperature in Seas, Lakes and Rivers
Check today’s water temperatures across Sweden, including seas, lakes, and rivers. View real-time updates and seasonal ranges for both coastal and inland waters. We find every place where you can swim and show you the water temperature there today and throughout the year.
Sea Water Temperature Along the Coast
Chart of Average Temperature Changes Over the Last 60 Days
Places with the Warmest Sea Water Today
The Most Popular Seaside Places
Coastal Seas and Oceans
Water Temperature in Lakes and Rivers
Popular Lakes
Popular Rivers
Popular Places
Water Temperature and Swimming Overview
Regions and Map
- Blekinge
- Dalarna County
- Gävleborg County
- Gotland County
- Halland
- Jämtland County
- Jönköping County
- Kalmar County
- Kronoberg Country
- Norrbotten County
- Örebro County
- Östergötland County
- Scania
- Södermanland
- Stockholm County
- Uppsala County
- Värmland County
- Västerbotten County
- Västernorrland County
- Västmanland County
- Västra Götaland County
Water Temperature Trends
Sweden’s coastal and inland waters show marked seasonal variation. Along the southern and western coasts in summer, sea surface temperatures typically reach about 15–20 °C (59–68 °F), and during warm spells can approach the low 20s °C (around 70–72 °F). Moving northward and into the Gulf of Bothnia the sea is cooler, often 10–18 °C (50–64 °F) in summer. Lakes and slow rivers warm more quickly, with many shallow inland lakes commonly reaching 18–25 °C (64–77 °F) in July and August, while deeper lakes remain cooler. Spring and autumn bring shoulder-season temperatures roughly from a few degrees above freezing to the low teens °C (about 34–55 °F) depending on region, and in winter sea and lake surfaces can be at or just above 0 °C (32 °F); parts of the Gulf of Bothnia and many lakes freeze solid during cold winters. The Baltic’s brackish water tends to heat and cool differently from fully marine coasts, and its lower salinity makes northern waters more prone to ice.
Swimming Conditions
Swimming is commonly practiced and generally permitted in Sweden, with many public beaches, jetties and municipal bathing areas open in summer and lifeguards at busier sites. Allemansrätten, the right of public access, also allows people to swim at natural sites while respecting private land and local rules. Water quality is monitored in populated areas, but safety precautions are important: colder water increases the risk of cold-water shock, currents and limited visibility can occur, and ice swimming requires training and equipment. Wetsuits, local guidance and awareness of seasonal conditions are advisable for safer swimming.