Biržai — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Biržai, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Biržai today is 18.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 6 | 18.6°C | 22.0°C | |
| JUN 7 | 18.4°C | 22.0°C | |
| JUN 8 | 18.6°C | 22.0°C | |
| JUN 10 | 19.5°C | 22.0°C | |
| JUN 11 | 18.6°C | 22.0°C | |
| JUN 12 | 18.8°C | 22.0°C | |
| JUN 13 | 18.8°C | 22.0°C | |
| JUN 14 | 22.0°C | 19.0°C | |
| JUN 15 | 22.0°C | 19.1°C | |
| JUN 16 | 22.0°C | 19.3°C | |
| JUN 17 | 22.0°C | 19.4°C | |
| JUN 18 | 22.0°C | 19.6°C | |
| JUN 19 | 22.0°C | 19.8°C | |
| JUN 20 | 22.0°C | 19.9°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 | 3°C | 6°C |
| February | 0°C | 3°C | 6°C |
| March | 1°C | 5°C | 9°C |
| April | 5°C | 9°C | 12°C |
| May | 7°C | 14°C | 19°C |
| June | 15°C | 22°C | 28°C |
| July | 17°C | 22°C | 27°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 7°C | 11°C | 14°C |
| November | 2°C | 7°C | 11°C |
| December | 1°C | 5°C | 8°C |
Biržai: Weather Forecast
June 13
June 14
June 15
June 16
June 17
June 18
Location & Local Information
Biržai, a town in northern Lithuania, sits beside Lake Širvėna, a shallow karst-influenced body of water popular for local recreation. Seasonal surface temperatures vary noticeably: in winter the lake is typically at or just above freezing (around 0–4 °C, 32–39 °F) beneath ice cover, spring sees a rise to roughly 4–12 °C (39–54 °F) as thaw progresses, summer temperatures commonly range from about 17–24 °C (63–75 °F) with occasional warm spells reaching 25–26 °C (77–79 °F), and autumn cools to roughly 8–15 °C (46–59 °F) as the lake loses heat. Shallow areas warm faster in calm weather, while deeper or shaded parts remain cooler even in summer.
Swimming in and around Lake Širvėna is generally allowed and practiced at designated bathing spots and informal beaches, because the lake is public water and used for recreation. However, access and suitability depend on conditions: ice cover and very low winter temperatures make swimming unsafe except for organized ice-swims with safety measures; in summer swimmers should be mindful of variable water quality and occasional algal blooms that can lead authorities to advise against bathing. Local signage and municipal water-quality updates are the best guides to whether a particular shoreline is suitable for swimming on any given day.