Oude Maas River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Oude Maas River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Oude Maas River today is 20.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 | 17.7°C | 19.5°C | |
| JUN 24 | 18.6°C | 19.5°C | |
| JUN 25 | 18.6°C | 19.5°C | |
| JUN 26 | 19.3°C | 19.5°C | |
| JUN 27 | 20.0°C | 19.5°C | |
| JUN 28 | 20.2°C | 19.5°C | |
| JUN 29 | 20.2°C | 19.5°C | |
| JUN 30 | 20.3°C | 19.5°C | |
| JUL 1 | 21.9°C | 20.2°C | |
| JUL 2 | 21.9°C | 20.3°C | |
| JUL 3 | 21.9°C | 20.4°C | |
| JUL 4 | 21.9°C | 20.5°C | |
| JUL 5 | 21.9°C | 20.6°C | |
| JUL 6 | 21.9°C | 20.6°C | |
| JUL 7 | 21.9°C | 20.7°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 | 3°C | 7°C |
| March | 4°C | 7°C | 10°C |
| April | 8°C | 12°C | 15°C |
| May | 11°C | 16°C | 20°C |
| June | 16°C | 20°C | 23°C |
| July | 19°C | 22°C | 27°C |
| August | 16°C | 20°C | 23°C |
| September | 14°C | 17°C | 22°C |
| October | 10°C | 13°C | 16°C |
| November | 1°C | 6°C | 11°C |
| December | 0°C | 4°C | 7°C |
Oude Maas River: Water Temperature by Location
Oude Maas River: Weather Forecast
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July 4
July 5
Location & Local Information
Source Beneden Merwede
• location Dordrecht
Mouth Nieuwe Maas
• location Vlaardingen
Length 30 km (19 mi)
The Oude Maas is a distributary of the river Rhine in the southern Netherlands, flowing through the province of South Holland and passing through cities like Dordrecht and Vlaardingen. The water temperature in the Oude Maas varies seasonally, with summer temperatures typically ranging between 18°C and 22°C (64°F to 72°F). During the colder months, the temperature can drop significantly, with readings around 4°C to 7°C (39°F to 45°F) in early spring and late autumn. While the river's temperature is generally warm enough for swimming in the summer, it is still cooler compared to lakes or smaller rivers.
Swimming in the Oude Maas is not always recommended due to the strong currents, heavy commercial traffic, and industrial activity that characterize the river. The Oude Maas is an important waterway for ships, including large vessels and barges, which makes it potentially dangerous for recreational swimmers. In addition, the water quality in some areas may not always meet the safety standards for swimming. There are, however, designated swimming areas near recreational zones where water quality is monitored for cleanliness and safety. These areas are typically separated from the main shipping routes, ensuring safer conditions for swimmers.