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Storfjärden Lake — Current Water Temperature, Annual Trends and Forecast

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

Runn Lake, Sweden
Runn Lake, Sweden © Skvattram, GFDL

Current Water Temperature

4.2°C
Today
4.8°C
Yesterday
5.1°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 Storfjärden Lake today is 4.2°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters. 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 30 to October 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 235.1°C9.0°C
OCT 245.7°C9.0°C
OCT 255.6°C9.0°C
OCT 265.3°C9.0°C
OCT 275.0°C9.0°C
OCT 284.8°C9.0°C
OCT 294.8°C9.0°C
OCT 304.5°C9.0°C
OCT 319.0°C4.2°C
NOV 15.0°C4.3°C
NOV 25.0°C4.3°C
NOV 35.0°C4.4°C
NOV 45.0°C4.4°C
NOV 55.0°C4.4°C
NOV 65.0°C4.5°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°C5°C
February0°C2°C5°C
March0°C3°C6°C
April1°C5°C8°C
May6°C11°C17°C
June12°C18°C23°C
July13°C19°C24°C
August14°C20°C25°C
September11°C17°C22°C
October5°C9°C12°C
November1°C5°C8°C
December0°C3°C6°C

Storfjärden Lake: Water Temperature by Location

Storfjärden Lake: Weather Forecast

October 31

° / °
overcast
rain: 0% | wind:

November 1

° / °
light drizzle
rain: 24% | wind:

November 2

° / °
overcast
rain: 22% | wind:

November 3

° / °
overcast
rain: 3% | wind:

November 4

° / °
overcast
rain: 4% | wind:

Location & Local Information

Storfjärden (Swedish: Storfjärden) in Uppsala County typically follows the seasonal temperature patterns common to lakes in this part of Sweden. During summer months the surface water usually warms to roughly 18–24 °C (64–75 °F) in sheltered shallows, occasionally reaching the mid‑20s in heatwaves. Spring temperatures rise from about 2–10 °C (36–50 °F) as ice melts and the water stratifies, while autumn sees cooling to roughly 6–14 °C (43–57 °F). In winter the lake often approaches near‑freezing conditions, with water under ice commonly around 0–4 °C (32–39 °F) where the surface is frozen; open water in cold spells will be very cold and unsuitable for prolonged exposure.

Swimming at Storfjärden is generally possible and commonly practiced in summer because many shorelines are publicly accessible and there are no universal prohibitions, but local rules, water quality advisories and private properties can restrict access in specific spots. Bathing conditions vary with depth, vegetation, weather and the absence of lifeguards, so swimmers should choose entry points with clear access, be aware of sudden depths and check current local signage or municipal information about algae blooms or contaminants. Ice swimming is practiced by experienced individuals when the ice is thick and safety measures are in place, but it is hazardous without proper precautions.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Storfjärden Lake?
Water Temperature in Storfjärden Lake today is 4.2°C.
What is the water temperature in Storfjärden Lake during the summer months?
The water temperature in Storfjärden Lake in summer fluctuates in the range of 12°C - 25°C.
Is it possible to swim in Storfjärden (Sweden) and what are the possibilities for this?
Yes — in Storfjärden, Sweden you can swim from sandy beaches, rocky shores and piers or use the area for longer sea swims and launching kayaks or paddleboards, but always check local water quality and conditions, be aware of currents and boat traffic, and follow safety advice.