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Haderslev — Current Water Temperature, Annual Trends and Forecast

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

Lake Arreskov, Denmark
Lake Arreskov, Denmark © By Nils Jepsen, CC BY-SA 4.0

Current Water Temperature

8.4°C
Today
8.6°C
Yesterday
9.4°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 Haderslev today is 8.4°C.

Water Temperature: Daily Trends, Historical Records, and Forecast

❌ As of today, the minimum water temperature ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing 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 September 30 to October 31

Table of Daily Sea Temperature Data

Date Current Average Forecast
OCT 239.4°C11.0°C
OCT 249.2°C11.0°C
OCT 259.4°C11.0°C
OCT 269.1°C11.0°C
OCT 278.8°C11.0°C
OCT 288.5°C11.0°C
OCT 298.6°C11.0°C
OCT 308.8°C11.0°C
OCT 3111.0°C8.4°C
NOV 18.2°C8.4°C
NOV 28.2°C8.4°C
NOV 38.2°C8.4°C
NOV 48.2°C8.4°C
NOV 58.2°C8.3°C
NOV 68.2°C8.3°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°C4°C7°C
February0°C3°C6°C
March2°C6°C9°C
April5°C9°C12°C
May9°C14°C20°C
June14°C20°C25°C
July14°C20°C25°C
August14°C20°C25°C
September11°C17°C22°C
October7°C11°C14°C
November4°C8°C12°C
December1°C5°C8°C

Haderslev: Weather Forecast

October 31

° / °
overcast
rain: 0% | wind:

November 1

° / °
light drizzle
rain: 23% | wind:

November 2

° / °
overcast
rain: 24% | wind:

November 3

° / °
fog
rain: 2% | wind:

November 4

° / °
fog
rain: 0% | wind:

Location & Local Information

Haderslev, in the Region of Southern Denmark, sits beside fjord arms and inland lakes that respond quickly to seasonal changes. Typical surface temperatures in these freshwater bodies are roughly 4–12 °C (about 39–54 °F) in spring, rising to around 17–22 °C (about 63–72 °F) in summer; during warm spells lakes can reach 23–25 °C (about 73–77 °F). In autumn temperatures generally fall back to roughly 7–14 °C (about 45–57 °F), and in winter surface waters hover near freezing, typically 0–4 °C (32–39 °F), with occasional ice cover during particularly cold periods. These ranges depend on factors such as depth, shelter from wind, and recent weather.

Swimming is generally allowed and popular in Haderslev at designated bathing areas along the fjord and at local lakes because municipalities monitor bathing water quality and mark approved sites. Public authorities issue guidance when water quality is poor — for example after heavy rain that increases runoff or during blooms of blue‑green algae — and some spots have seasonal facilities or signage. Visitors should use marked bathing places for safety and check local notices for temporary restrictions, since safe swimming depends on current water quality, temperature and weather conditions.

Nearby Locations

Frequently Asked Questions

What is the current water temperature in Haderslev?
Water Temperature in Haderslev today is 8.4°C.
What is the water temperature in Haderslev during the summer months?
The water temperature in Haderslev in summer fluctuates in the range of 14°C - 25°C.
Is it possible to swim in Haderslev (Denmark) in Haderslev Fjord and what are the possibilities for this?
Yes — Haderslev Fjord offers opportunities for swimming from public sandy beaches, harbors and jetties with generally calm waters suitable for casual swimming, paddling and wind sports, and the town provides seasonal facilities and water-quality monitoring, so follow local signage and weather conditions for safety.