Halleby River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Halleby River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Halleby River today is 19°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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 |
|---|---|---|---|
| JUN 23 | 16.8°C | 17.0°C | |
| JUN 24 | 16.9°C | 17.0°C | |
| JUN 25 | 16.9°C | 17.0°C | |
| JUN 26 | 17.9°C | 17.0°C | |
| JUN 27 | 17.9°C | 17.0°C | |
| JUN 28 | 18.4°C | 17.0°C | |
| JUN 29 | 18.4°C | 17.0°C | |
| JUN 30 | 19.0°C | 17.0°C | |
| JUL 1 | 17.0°C | 18.9°C | |
| JUL 2 | 17.0°C | 18.8°C | |
| JUL 3 | 17.0°C | 18.7°C | |
| JUL 4 | 17.0°C | 18.6°C | |
| JUL 5 | 17.0°C | 18.5°C | |
| JUL 6 | 17.0°C | 18.4°C | |
| JUL 7 | 17.0°C | 18.3°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 |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 5°C | 8°C |
| April | 4°C | 8°C | 10°C |
| May | 8°C | 12°C | 17°C |
| June | 12°C | 17°C | 21°C |
| July | 12°C | 17°C | 21°C |
| August | 12°C | 17°C | 21°C |
| September | 9°C | 14°C | 18°C |
| October | 6°C | 9°C | 12°C |
| November | 4°C | 8°C | 10°C |
| December | 0°C | 4°C | 7°C |
Halleby River: Water Temperature by Location
Halleby River: Weather Forecast
July 1
July 2
July 3
July 4
July 5
Location & Local Information
Halleby Å is a small lowland river on Zealand, and its water temperature follows the seasonal cycle typical for Danish streams. In winter the water often sits near freezing, roughly 0–4 °C (32–39 °F). Spring brings a steady rise as snowmelt and warming air push temperatures into the mid single digits up to about 10–12 °C (39–54 °F). Summer is when the river is warmest, with surface temperatures commonly ranging from about 12–20 °C (54–68 °F) and occasionally higher in shallow, slow stretches. In autumn the river cools again, generally moving through 6–12 °C (43–54 °F) as air temperatures drop.
Swimming in Halleby Å is possible in places but is not generally managed as an official bathing site; informal swimming occurs where access, depth and flow permit. Whether it is advisable depends on local factors: water quality can vary with agricultural runoff and rainfall, sections may be shallow or vegetated and currents can change after rain, and some stretches cross private land. For safety and hygiene it is sensible to check municipal bathing information or local signage and to choose spots with easy entry and clear water rather than assuming the river is suitable everywhere.