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Regnaren Lake — Current Water Temperature, Annual Trends and Forecast

This page provides information on the current water temperature in Regnaren Lake, trends, monthly ranges and the forecast for the coming days.

Ånnsjön, Sweden
Ånnsjön, Sweden © By Lars Falkdalen Lindahl, CC BY-SA 3.0

Current Water Temperature

16.3°C
Today
16.6°C
Yesterday
15.7°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 Regnaren Lake today is 16.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 May 10 to June 10

Table of Daily Sea Temperature Data

Date Current Average Forecast
JUN 315.7°C19.0°C
JUN 415.7°C19.0°C
JUN 516.5°C19.0°C
JUN 616.5°C19.0°C
JUN 716.5°C19.0°C
JUN 816.6°C19.0°C
JUN 1016.3°C19.0°C
JUN 1119.0°C16.4°C
JUN 1219.0°C16.6°C
JUN 1319.0°C16.7°C
JUN 1419.0°C16.8°C
JUN 1519.0°C17.0°C
JUN 1619.0°C17.1°C
JUN 1719.0°C17.2°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°C3°C6°C
February0°C3°C6°C
March0°C4°C7°C
April4°C8°C11°C
May8°C13°C19°C
June13°C19°C24°C
July16°C21°C26°C
August14°C20°C25°C
September11°C17°C22°C
October6°C10°C13°C
November3°C7°C10°C
December0°C4°C7°C

Regnaren Lake: Water Temperature by Location

Regnaren Lake: Weather Forecast

June 9

° / °
moderate rain
rain: 100% | wind:

June 10

° / °
light drizzle
rain: 68% | wind:

June 11

° / °
overcast
rain: 31% | wind:

June 12

° / °
slight rain
rain: 35% | wind:

June 13

° / °
light drizzle
rain: 64% | wind:

Location & Local Information

Regnaren, a freshwater lake in Östergötland County, typically follows the seasonal temperature patterns of southern Swedish inland lakes. During summer months surface temperatures commonly range from about 15–24 °C (59–75 °F), with heatwaves occasionally pushing values a few degrees higher. In spring, as ice melts and water warms, temperatures are often between roughly 0–10 °C (32–50 °F), while autumn cooling produces surface values around 8–15 °C (46–59 °F). In winter the lake is frequently close to freezing, with surface water near 0–4 °C (32–39 °F) and sections sometimes covered by ice for parts of the season. Actual temperatures vary with weather, depth and local inflows, so daily measurements can differ from these typical ranges.

Swimming in Regnaren is generally possible and often practiced in the warmer months, and public access to shorelines in Sweden usually means people may enter the water unless specific signs or private restrictions apply. Water quality in many Östergötland lakes is suitable for bathing, but it can vary, so checking local advisories is wise. Cold-water risks such as cold shock and hypothermia apply in spring and autumn, and ice safety is critical in winter; use caution, swim with companions, and follow any posted guidance.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Regnaren Lake?
Water Temperature in Regnaren Lake today is 16.3°C.
What is the water temperature in Regnaren Lake during the summer months?
The water temperature in Regnaren Lake in summer fluctuates in the range of 13°C - 26°C.
Is it possible to swim in Regnaren (Sweden) and what are the possibilities for this?
Yes — swimming in Regnären is possible, typically from the shoreline, small informal bathing spots or from boats when access and seasonal water quality permit, so check local access rules and current conditions before you go.