Lake Koosa — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Koosa, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Koosa today is 14°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 17 | 15.0°C | 17.0°C | |
| SEP 18 | 14.8°C | 17.0°C | |
| SEP 19 | 14.9°C | 17.0°C | |
| SEP 20 | 14.7°C | 17.0°C | |
| SEP 21 | 14.7°C | 17.0°C | |
| SEP 22 | 14.5°C | 17.0°C | |
| SEP 23 | 14.4°C | 17.0°C | |
| SEP 24 | 14.0°C | 17.0°C | |
| SEP 25 | 17.0°C | 13.8°C | |
| SEP 26 | 17.0°C | 13.6°C | |
| SEP 27 | 17.0°C | 13.4°C | |
| SEP 28 | 17.0°C | 13.2°C | |
| SEP 29 | 17.0°C | 13.0°C | |
| SEP 30 | 17.0°C | 12.8°C | |
| OCT 1 | 10.0°C | 12.6°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 | 0°C | 4°C | 7°C |
| April | 4°C | 8°C | 11°C |
| May | 7°C | 13°C | 19°C |
| June | 13°C | 19°C | 24°C |
| July | 16°C | 21°C | 26°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 6°C | 10°C | 13°C |
| November | 1°C | 6°C | 10°C |
| December | 0°C | 4°C | 7°C |
Lake Koosa: Water Temperature by Location
Lake Koosa: Weather Forecast
September 25
September 26
September 27
September 28
September 29
Location & Local Information
Koosa Lake (Koosa järv) typically follows the temperature patterns of small Estonian lakes. After ice break in spring (March–May) surface temperatures commonly rise from near freezing to about 2–12 °C (36–54 °F). In summer (June–August) surface waters usually warm to roughly 17–24 °C (63–75 °F), occasionally reaching 25–26 °C (77–79 °F) during warm spells. Autumn cooling (September–November) brings surface temperatures down into the range of about 8–14 °C (46–57 °F), while in winter the lake often freezes and water beneath the ice remains close to 0–4 °C (32–39 °F). These figures are approximate; actual measurements vary with weather, wind, depth and local inflows, with deeper layers staying colder year-round.
Swimming in and around Koosa is generally possible and commonly practised in summer because the lake is a public natural waterbody and there are no blanket bans on bathing. Suitability for swimming depends on conditions: water temperature, weather, visibility, and any local advisories about water quality or safety. Designated beaches or shallow bays warm more quickly and are preferred for casual swimming, while colder shoulder seasons increase the risk of hypothermia. Always heed local signs or guidance from municipal authorities if present.