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Damtjern — Current Water Temperature, Annual Trends and Forecast

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

Tyrifjorden, Norway
Tyrifjorden, Norway © CC BY-SA 2.5, CC BY-SA 2.5

Current Water Temperature

10.4°C
Today
10.4°C
Yesterday
10.1°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 Damtjern today is 10.4°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 38.6°C14.8°C
JUN 48.9°C14.8°C
JUN 58.9°C14.8°C
JUN 68.9°C14.8°C
JUN 710.4°C14.8°C
JUN 810.4°C14.8°C
JUN 1010.4°C14.8°C
JUN 1114.8°C10.6°C
JUN 1214.8°C10.8°C
JUN 1314.8°C11.1°C
JUN 1414.8°C11.3°C
JUN 1514.8°C11.5°C
JUN 1614.8°C11.7°C
JUN 1714.8°C11.9°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°C0°C4°C
April0°C3°C6°C
May4°C9°C14°C
June8°C15°C21°C
July11°C17°C22°C
August12°C18°C23°C
September9°C14°C20°C
October3°C7°C10°C
November0°C3°C6°C
December0°C0°C4°C

Damtjern: Water Temperature by Location

Damtjern: Weather Forecast

June 9

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

June 10

° / °
slight rain
rain: 70% | wind:

June 11

° / °
moderate drizzle
rain: 51% | wind:

June 12

° / °
slight rain
rain: 32% | wind:

June 13

° / °
light drizzle
rain: 52% | wind:

Location & Local Information

Damtjern is a small lake in Buskerud County, Norway, known for its quiet setting and clear water. Seasonal water temperatures vary widely: in spring (April–May) the surface often ranges from about 0–8 °C (32–46 °F) as ice melts and runoff cools the basin. Summer (June–August) brings the warmest conditions, typically around 14–20 °C (57–68 °F) at the surface on sunny days, though shallow bays can warm slightly higher. In autumn (September–October) temperatures generally fall back to roughly 6–12 °C (43–54 °F) before the lake begins to freeze. Winter months usually see ice cover and temperatures hovering at or below 0 °C (32 °F), making open-water swimming impractical.

Swimming at Damtjern is generally permitted, reflecting Norway’s public right of access (allemannsretten) and the lack of specific prohibitions at many small lakes. Many visitors swim in summer when surface temperatures are comfortable, but there are no lifeguards or formal facilities, so swimmers should be cautious about sudden changes in weather, cold-water shock, and local depth or underwater obstacles. Water quality is often good in upland Norwegian lakes, but seasonal runoff or algal growth can affect conditions, so checking local guidance or signage before swimming is advisable.

Nearby Lakes

Frequently Asked Questions

What is the current water temperature in Damtjern?
Water Temperature in Damtjern today is 10.4°C.
What is the water temperature in Damtjern during the summer months?
The water temperature in Damtjern in summer fluctuates in the range of 8°C - 23°C.
Is it possible to swim in Damtjern (Norway) and what are the possibilities for this?
Yes — Damtjern is suitable for swimming in summer, with shoreline and rock-entry spots accessible from nearby hiking trails that make it popular for wild swimming and picnics, though facilities are minimal and the water can be cold so visitors should exercise caution.