Kaunas — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Kaunas, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Kaunas today is 20.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| AUG 26 | 18.4°C | 18.6°C | |
| AUG 27 | 18.3°C | 18.6°C | |
| AUG 28 | 18.3°C | 18.6°C | |
| AUG 29 | 18.3°C | 18.6°C | |
| AUG 30 | 18.3°C | 18.6°C | |
| AUG 31 | 18.3°C | 18.6°C | |
| SEP 1 | 18.2°C | 16.0°C | |
| SEP 2 | 18.4°C | 16.0°C | |
| SEP 3 | 16.0°C | 20.7°C | |
| SEP 4 | 16.0°C | 20.4°C | |
| SEP 5 | 16.0°C | 20.2°C | |
| SEP 6 | 16.0°C | 19.9°C | |
| SEP 7 | 16.0°C | 19.7°C | |
| SEP 8 | 16.0°C | 19.4°C | |
| SEP 9 | 16.0°C | 19.2°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 1°C | 5°C | 9°C |
| April | 5°C | 9°C | 11°C |
| May | 7°C | 13°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 14°C | 18°C | 23°C |
| August | 14°C | 19°C | 24°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 2°C | 7°C | 11°C |
| December | 0°C | 3°C | 6°C |
Kaunas: Weather Forecast
September 3
September 4
September 5
September 6
September 7
September 8
Location & Local Information
Kaunas (in Lithuanian — Kaunas) lies where the Nemunas and Neris rivers meet and is dominated by the Kaunas Reservoir, an impounded lake commonly used for recreation. Water temperatures vary strongly by season: in spring waters typically rise from about 2–8 °C (36–46 °F) in March–April to 8–15 °C (46–59 °F) in May. Summer brings the warmest conditions, usually 18–25 °C (64–77 °F) from June through August and occasionally reaching 26–27 °C (79–81 °F) during heatwaves. In autumn temperatures fall to roughly 10–18 °C (50–64 °F) in September and drop toward 2–10 °C (36–50 °F) by October–November, while winter waters hover close to freezing, roughly 0–4 °C (32–39 °F) before ice forms.
Swimming is permitted in Kaunas at designated beaches and city-managed waterfronts where water quality is monitored, and many locals and visitors swim in summer when temperatures are comfortable. Safety considerations influence access: strong currents in some areas, boat traffic on the reservoir and occasional algal blooms mean swimming is recommended only in marked, supervised zones. Ice swimming is practiced by enthusiasts in winter but requires proper local guidance and rescue provisions; casual bathing is discouraged when temperatures are near freezing or when authorities advise against entering the water.