Jyllinge — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Jyllinge, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Jyllinge today is 7.5°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold. 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 | 7.3°C | 9.0°C | |
| APR 12 | 7.3°C | 9.0°C | |
| APR 13 | 7.3°C | 9.0°C | |
| APR 14 | 7.4°C | 9.0°C | |
| APR 15 | 7.3°C | 9.0°C | |
| APR 16 | 7.3°C | 9.0°C | |
| APR 17 | 7.3°C | 9.0°C | |
| APR 18 | 7.5°C | 9.0°C | |
| APR 19 | 9.0°C | 7.6°C | |
| APR 20 | 9.0°C | 7.7°C | |
| APR 21 | 9.0°C | 7.7°C | |
| APR 22 | 9.0°C | 7.8°C | |
| APR 23 | 9.0°C | 7.9°C | |
| APR 24 | 9.0°C | 8.0°C | |
| APR 25 | 9.0°C | 8.0°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 |
|---|---|---|---|
| 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 | 5°C | 9°C | 12°C |
| December | 1°C | 5°C | 8°C |
Jyllinge: Weather Forecast
April 18
April 19
April 20
April 21
April 22
Location & Local Information
Jyllinge is a small town in Region Zealand, Denmark, located on the shores of Roskilde Fjord with several small inland ponds and a local lake used for recreation. Surface temperatures in a typical Jyllinge-area lake follow the temperate Danish pattern: in spring the water usually warms from about 4–12 °C (39–54 °F) as ice melts and sunshine increases; in summer surface temperatures commonly reach 18–24 °C (64–75 °F), and during warm spells can climb a few degrees higher; autumn brings cooling to roughly 8–14 °C (46–57 °F) before winter lows typically fall to around 0–6 °C (32–43 °F), when the water can be very cold and sometimes freeze at the surface in colder years.
Swimming in the lake and nearby fjord is generally allowed and practised by locals, since public access to bathing spots is a typical feature of Danish coastal and inland waters. However, whether it is advisable depends on current conditions: water quality monitoring, occasional blue‑green algae blooms in warm weather, seasonal runoff or local advisories may lead authorities to recommend avoiding swimming at times. There are usually no permanent lifeguards at small lakes, so swimmers should take ordinary precautions regarding temperature, currents in the fjord, and posted guidance from the municipality before entering the water.