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Fjerdvatnet — Current Water Temperature, Annual Trends and Forecast

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

Fjerdvatnet, Norway
Fjerdvatnet, Norway © By Ximonic, GFDL

Current Water Temperature

1.5°C
Today
1.7°C
Yesterday
2.3°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 Fjerdvatnet today is 1.5°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 242.3°C5.0°C
OCT 252.6°C5.0°C
OCT 262.5°C5.0°C
OCT 272.3°C5.0°C
OCT 282.1°C5.0°C
OCT 291.9°C5.0°C
OCT 301.7°C5.0°C
OCT 311.5°C5.0°C
NOV 13.0°C1.6°C
NOV 23.0°C1.7°C
NOV 33.0°C1.7°C
NOV 43.0°C1.8°C
NOV 53.0°C1.9°C
NOV 63.0°C2.0°C
NOV 73.0°C2.0°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°C0°C4°C
February0°C0°C4°C
March0°C0°C4°C
April0°C2°C5°C
May0°C5°C10°C
June6°C11°C17°C
July10°C15°C21°C
August9°C14°C20°C
September6°C11°C17°C
October1°C5°C8°C
November0°C3°C6°C
December0°C0°C4°C

Fjerdvatnet: Water Temperature by Location

Fjerdvatnet: Weather Forecast

November 1

° / °
slight rain showers
rain: 82% | wind:

November 2

° / °
moderate rain showers
rain: 98% | wind:

November 3

° / °
slight rain showers
rain: 96% | wind:

November 4

° / °
slight rain
rain: 98% | wind:

Location & Local Information

Fjerdvatnet in Nordland is a typical northern Norwegian lake where temperatures vary markedly with the seasons and local conditions such as depth, shading and inflow from rivers. In winter the surface commonly approaches freezing, around 0 °C (32 °F) when ice forms; during spring and early thaw it typically ranges from about 2–8 °C (36–46 °F) as snowmelt cools the water. In summer, on warmer sunny days and in shallower bays, surface temperatures can reach roughly 10–16 °C (50–61 °F), while deeper parts remain cooler. In autumn the lake cools again, often sitting between 4–10 °C (39–50 °F) before ice returns.

Swimming in Fjerdvatnet is generally allowed, reflecting Norway’s public right of access to nature and the absence of broad legal bans on bathing in such lakes. Practical swimming opportunities, however, depend on water temperature and safety: summer months offer the most comfortable conditions for short swims, while spring and autumn waters are brisk and winter swimming is hazardous without ice-safety precautions or specialized gear. Visitors should assess local conditions, watch for cold-water shock risks, use wetsuits if needed, and respect any local signs or private shoreline ownership that could restrict access.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Fjerdvatnet?
Water Temperature in Fjerdvatnet today is 1.5°C.
What is the water temperature in Fjerdvatnet during the summer months?
The water temperature in Fjerdvatnet in summer fluctuates in the range of 6°C - 21°C.
Is it possible to swim in Fjerdvatnet (Norway) and what are the possibilities for this?
Yes — you can swim in Fjerdvatnet; in summer the lake is accessible for bathing from natural shores or by boat or kayak, but the water is often cold, facilities are usually minimal, and access and safety vary by location and season.