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.
Current Water Temperature
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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| APR 11 | 7.6°C | 9.0°C | |
| APR 12 | 7.6°C | 9.0°C | |
| APR 13 | 7.7°C | 9.0°C | |
| APR 14 | 7.8°C | 9.0°C | |
| APR 15 | 8.0°C | 9.0°C | |
| APR 16 | 8.3°C | 9.0°C | |
| APR 17 | 8.3°C | 9.0°C | |
| APR 18 | 8.4°C | 9.0°C | |
| APR 19 | 9.0°C | 8.4°C | |
| APR 20 | 9.0°C | 8.5°C | |
| APR 21 | 9.0°C | 8.5°C | |
| APR 22 | 9.0°C | 8.5°C | |
| APR 23 | 9.0°C | 8.6°C | |
| APR 24 | 9.0°C | 8.6°C | |
| APR 25 | 9.0°C | 8.6°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 |
|---|---|---|---|
| January | 0°C | 4°C | 7°C |
| February | 0°C | 3°C | 6°C |
| March | 2°C | 6°C | 9°C |
| April | 5°C | 9°C | 12°C |
| May | 9°C | 14°C | 20°C |
| June | 14°C | 20°C | 25°C |
| July | 14°C | 20°C | 25°C |
| August | 14°C | 20°C | 25°C |
| September | 11°C | 17°C | 22°C |
| October | 7°C | 11°C | 14°C |
| November | 4°C | 8°C | 12°C |
| December | 1°C | 5°C | 8°C |
Haderslev: Weather Forecast
April 18
April 19
April 20
April 21
April 22
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.