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Flåsjön — Current Water Temperature, Annual Trends and Forecast

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

Storsjön, Sweden
Storsjön, Sweden © By Rickard Olsson, CC BY-SA 3.0

Current Water Temperature

6.3°C
Today
6.5°C
Yesterday
7.3°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 Flåsjön today is 6.3°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 September 10 to October 11

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 47.3°C7.0°C
OCT 57.1°C7.0°C
OCT 66.9°C7.0°C
OCT 76.9°C7.0°C
OCT 87.1°C7.0°C
OCT 96.6°C7.0°C
OCT 106.5°C7.0°C
OCT 116.3°C7.0°C
OCT 127.0°C6.3°C
OCT 137.0°C6.4°C
OCT 147.0°C6.4°C
OCT 157.0°C6.4°C
OCT 167.0°C6.5°C
OCT 177.0°C6.5°C
OCT 187.0°C6.5°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°C2°C3°C
February0°C2°C3°C
March0°C2°C5°C
April0°C2°C5°C
May1°C6°C11°C
June8°C13°C19°C
July12°C18°C23°C
August11°C17°C22°C
September7°C12°C18°C
October3°C7°C10°C
November0°C4°C7°C
December0°C0°C4°C

Flåsjön: Water Temperature by Location

Flåsjön: Weather Forecast

October 11

° / °
overcast
snow: 0% | wind:

October 12

° / °
overcast
snow: 0% | wind:

October 13

° / °
dense intensity drizzle
snow: 72% | wind:

October 14

° / °
slight rain
rain: 75% | wind:

October 15

° / °
light drizzle
rain: 33% | wind:

Location & Local Information

Flåsjön in Jämtland County is a freshwater lake whose surface temperatures follow the marked seasonal rhythm of the Swedish inland. In spring the water is cold, commonly around 1–10 °C (34–50 °F) as snowmelt and cool air keep temperatures low. During summer months surface readings often climb into the range of roughly 12–22 °C (54–72 °F) on warm sunny days, though cooler winds and depth can keep some spots several degrees lower. In autumn the lake cools back toward about 5–12 °C (41–54 °F), and in winter the surface typically freezes or sits just above 0 °C (32 °F), with liquid water below the ice at slightly higher but still near-freezing temperatures.

Swimming at Flåsjön is generally possible and common in summer, thanks to Swedish access rights and informal local use, but it is not formally supervised and conditions vary. Bathing is allowed unless specific local restrictions are posted, yet swimmers should be mindful of cold-water hazards, sudden weather changes, underwater obstacles and the absence of lifeguards. For safer and more comfortable swims consider sheltered bays, warmer days, short exposures or a wetsuit; experienced cold-water enthusiasts sometimes use cut ice for winter dips, but that requires proper safety precautions and knowledge.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Flåsjön?
Water Temperature in Flåsjön today is 6.3°C.
What is the water temperature in Flåsjön during the summer months?
The water temperature in Flåsjön in summer fluctuates in the range of 8°C - 23°C.
Is it possible to swim in Flåsjön (Sweden) and what are the possibilities for this?
Yes — Flåsjön can be used for swimming, generally from its shores and small beaches or sheltered bays suitable for casual bathing, with opportunities for canoeing or kayaking and picnicking at access points, though facilities and conditions vary so you should heed local safety information and water temperature.