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Längelmävesi — Current Water Temperature, Annual Trends and Forecast

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

Längelmävesi, Finland
Längelmävesi, Finland © By kallerna, CC BY-SA 4.0

Current Water Temperature

14.0°C
Today
13.6°C
Yesterday
15.1°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 Längelmävesi 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

From August 21 to September 21

Table of Daily Sea Temperature Data

Date Current Average Forecast
SEP 1415.1°C17.0°C
SEP 1514.8°C17.0°C
SEP 1614.9°C17.0°C
SEP 1714.4°C17.0°C
SEP 1814.4°C17.0°C
SEP 1914.2°C17.0°C
SEP 2013.6°C17.0°C
SEP 2114.0°C17.0°C
SEP 2217.0°C14.2°C
SEP 2317.0°C14.3°C
SEP 2417.0°C14.5°C
SEP 2517.0°C14.6°C
SEP 2617.0°C14.8°C
SEP 2717.0°C14.9°C
SEP 2817.0°C15.1°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°C2°C5°C
March0°C2°C5°C
April0°C4°C7°C
May5°C10°C15°C
June10°C15°C21°C
July14°C20°C25°C
August14°C20°C25°C
September11°C17°C22°C
October5°C9°C12°C
November1°C5°C8°C
December0°C3°C6°C

Längelmävesi: Water Temperature by Location

Längelmävesi: Weather Forecast

September 21

° / °
slight rain
rain: 26% | wind:

September 22

° / °
overcast
rain: 4% | wind:

September 23

° / °
overcast
rain: 14% | wind:

September 24

° / °
moderate drizzle
rain: 22% | wind:

September 25

° / °
light drizzle
rain: 18% | wind:

September 26

° / °
fog
rain: 16% | wind:

Location & Local Information

Lake Längelmävesi, located in Central Finland, is a large and scenic lake stretching across the municipalities of Orivesi and Jämsä. The lake has clear water and several islands, and its temperature varies distinctly with the Finnish seasons. In spring, after the ice melts, the surface water is still cold, around 5–8 °C (41–46 °F). During early summer, it gradually warms to 14–17 °C (57–63 °F), and in July, when the days are longest, it usually reaches 19–22 °C (66–72 °F). On hot summer days, sheltered bays may briefly reach 23–24 °C (73–75 °F). As autumn arrives, the water cools quickly below 10 °C (50 °F), and the lake typically freezes in late November or early December.

Swimming in Längelmävesi is officially allowed and popular among locals and visitors alike. The water quality is generally good, and there are several small public beaches and piers suitable for bathing. Because the lake is relatively deep and open, it warms more slowly than smaller nearby lakes, but the water remains comfortable for swimming from mid-June to late August. The peaceful surroundings, clear water, and scenic islands make it an attractive destination for swimming, kayaking, and nature recreation.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Längelmävesi?
Water Temperature in Längelmävesi today is 14°C.
What is the water temperature in Längelmävesi during the summer months?
The water temperature in Längelmävesi in summer fluctuates in the range of 10°C - 25°C.
Is it possible to swim in Längelmävesi (Finland) and what are the possibilities for this?
Yes — Längelmävesi has plenty of swimming opportunities, from sandy and rocky beaches and municipal lakeside swimming areas to dipping off cottage piers, islands or boats and in sheltered bays, though services and water conditions vary by spot and season so it's wise to check local advisories before going in.