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Lomnessjøen — Current Water Temperature, Annual Trends and Forecast

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

Lomnessjøen, Norway
Lomnessjøen, Norway © By Orland, CC BY-SA 4.0

Current Water Temperature

10.9°C
Today
10.6°C
Yesterday
8.8°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 Lomnessjøen today is 10.9°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used. 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 29.7°C14.4°C
JUN 38.7°C14.4°C
JUN 48.9°C14.4°C
JUN 58.9°C14.4°C
JUN 68.9°C14.4°C
JUN 710.6°C14.4°C
JUN 810.6°C14.4°C
JUN 1014.4°C11.1°C
JUN 1114.4°C11.3°C
JUN 1214.4°C11.4°C
JUN 1314.4°C11.6°C
JUN 1414.4°C11.8°C
JUN 1514.4°C12.0°C
JUN 1614.4°C12.1°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°C2°C5°C
February0°C0°C4°C
March0°C0°C4°C
April0°C3°C6°C
May4°C9°C14°C
June8°C14°C20°C
July13°C19°C24°C
August13°C19°C24°C
September10°C15°C21°C
October4°C8°C11°C
November0°C4°C7°C
December0°C2°C5°C

Lomnessjøen: Water Temperature by Location

Lomnessjøen: Weather Forecast

June 9

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

June 10

° / °
moderate rain
rain: 96% | wind:

June 11

° / °
slight rain
rain: 71% | wind:

June 12

° / °
light drizzle
rain: 33% | wind:

June 13

° / °
moderate drizzle
rain: 65% | wind:

Location & Local Information

Lomnessjøen in Innlandet County typically has cool water temperatures that vary with season, weather and the lake’s depth and elevation. In spring (April–May) the surface often ranges from just above freezing up to about 4–8 °C (39–46 °F) as snowmelt cools inflows. In summer (June–August) temperatures commonly rise to roughly 12–18 °C (54–64 °F), though shallow bays can warm a few degrees higher on sunny days. Autumn sees a steady decline, often 6–12 °C (43–54 °F) in September–October before approaching freezing in winter when ice can form and surface temperatures settle around 0–2 °C (32–36 °F) where unfrozen water remains.

Swimming at Lomnessjøen is generally possible and frequently practiced in summer, since there are no broad prohibitions on bathing in most Norwegian lakes and public access is protected by the “freedom to roam.” Local conditions, private shoreline rights, and seasonal ice cover can restrict access, so check for signage and respect landowners. Because the water is relatively cool even in summer, swimmers should take standard precautions: limit exposure time, use a wetsuit if planning extended swims, supervise children, and be aware of sudden cold-water shock and changing weather.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Lomnessjøen?
Water Temperature in Lomnessjøen today is 10.9°C.
What is the water temperature in Lomnessjøen during the summer months?
The water temperature in Lomnessjøen in summer fluctuates in the range of 8°C - 24°C.
Is it possible to swim in Lomnessjøen (Norway) and what are the possibilities for this?
Yes — Lomnessjøen can be swum in from its shores or by boat/kayak during the warmer months, but the water is often cold outside mid-summer so visitors should consider temperature, depth and local conditions and follow normal lake-safety precautions.