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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.

Kaunas, Lithuania
Kaunas, Lithuania © By BigHead, CC BY-SA 4.0

Current Water Temperature

12.3°C
Today
12.0°C
Yesterday
13.5°C
A Week Ago
Get instant access to real-time water temperatures for this and all other locations with our iOS and Android apps.

Water Temperature in Kaunas today is 12.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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

From September 14 to October 15

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 813.5°C11.0°C
OCT 913.3°C11.0°C
OCT 1013.7°C11.0°C
OCT 1112.6°C11.0°C
OCT 1212.8°C11.0°C
OCT 1312.1°C11.0°C
OCT 1412.0°C11.0°C
OCT 1512.3°C11.0°C
OCT 1611.0°C12.2°C
OCT 1711.0°C12.2°C
OCT 1811.0°C12.1°C
OCT 1911.0°C12.0°C
OCT 2011.0°C12.0°C
OCT 2111.0°C11.9°C
OCT 2211.0°C11.8°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
January0°C4°C7°C
February0°C4°C7°C
March1°C5°C9°C
April5°C9°C11°C
May7°C13°C18°C
June13°C18°C22°C
July14°C18°C23°C
August14°C19°C24°C
September11°C16°C20°C
October8°C11°C14°C
November2°C7°C11°C
December0°C3°C6°C

Kaunas: Weather Forecast

October 16

° / °
overcast
rain: 0% | wind:

October 17

° / °
fog
rain: 8% | wind:

October 18

° / °
overcast
rain: 10% | wind:

October 19

° / °
overcast
rain: 12% | wind:

October 20

° / °
clear sky
rain: 16% | wind:

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.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Kaunas?
Water Temperature in Kaunas today is 12.3°C.
What is the water temperature in Kaunas during the summer months?
The water temperature in Kaunas in summer fluctuates in the range of 13°C - 24°C.
Is it possible to swim in Kaunas (Lithuania) in Neman and what are the possibilities for this?
Yes — you can swim in the Nemunas around Kaunas, mainly at designated sandy and monitored beaches on the Kaunas Reservoir and city swimming areas in summer when lifeguards and water-quality checks operate, while unmarked river stretches can have strong currents, boat traffic and variable cleanliness, so it’s best to follow local signs and advisories.