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 13.4°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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 16 | 14.5°C | 17.0°C | |
| SEP 17 | 14.2°C | 17.0°C | |
| SEP 18 | 14.7°C | 17.0°C | |
| SEP 19 | 14.6°C | 17.0°C | |
| SEP 20 | 14.4°C | 17.0°C | |
| SEP 21 | 13.8°C | 17.0°C | |
| SEP 22 | 13.9°C | 17.0°C | |
| SEP 23 | 13.7°C | 17.0°C | |
| SEP 24 | 17.0°C | 13.6°C | |
| SEP 25 | 17.0°C | 13.8°C | |
| SEP 26 | 17.0°C | 13.9°C | |
| SEP 27 | 17.0°C | 14.1°C | |
| SEP 28 | 17.0°C | 14.3°C | |
| SEP 29 | 17.0°C | 14.5°C | |
| SEP 30 | 17.0°C | 14.7°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
September 25
September 26
September 27
September 28
September 29
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.