Lake Ermistu — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Ermistu, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Ermistu today is 14.4°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 14 | 15.6°C | 17.0°C | |
| SEP 15 | 15.2°C | 17.0°C | |
| SEP 16 | 15.1°C | 17.0°C | |
| SEP 17 | 14.4°C | 17.0°C | |
| SEP 18 | 14.7°C | 17.0°C | |
| SEP 19 | 14.6°C | 17.0°C | |
| SEP 20 | 14.5°C | 17.0°C | |
| SEP 21 | 14.4°C | 17.0°C | |
| SEP 22 | 17.0°C | 14.5°C | |
| SEP 23 | 17.0°C | 14.7°C | |
| SEP 24 | 17.0°C | 14.8°C | |
| SEP 25 | 17.0°C | 14.9°C | |
| SEP 26 | 17.0°C | 15.1°C | |
| SEP 27 | 17.0°C | 15.2°C | |
| SEP 28 | 17.0°C | 15.3°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 | 14°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 Ermistu: Water Temperature by Location
Lake Ermistu: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Ermistu järv is a shallow coastal lake in southwest Estonia that warms and cools relatively quickly with the seasons. Typical water temperatures in spring (April–May) range roughly from 2–12 °C (36–54 °F) as the water thaws and begins to warm; in summer (June–August) surface temperatures commonly reach about 15–25 °C (59–77 °F), occasionally climbing higher during heat spells; autumn (September–October) sees cooling to roughly 5–15 °C (41–59 °F); and in winter the lake usually freezes, with water at or just above 0–1 °C (32–34 °F) beneath the ice. Because the lake is shallow and partly sheltered, temperatures can vary between open water and reed-bordered shallows and respond fast to weather changes.
Swimming in Ermistu järv is generally possible and commonly done in the warmer months when the surface temperature is comfortable, since it is a publicly accessible lake with gentle shores. However, conditions affect suitability: summer warmth makes swimming pleasant, while ice cover in winter prevents ordinary swimming except for experienced, well-prepared ice swimmers. Water quality and local factors such as reeds, muddy bottoms and occasional algal growth can influence safety and enjoyment, and there are typically no lifeguards, so swimmers should use normal precautions and heed any local advisories.