Rotterdam — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Rotterdam, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Rotterdam today is 21.5°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 |
|---|---|---|---|
| AUG 6 | 22.5°C | 19.2°C | |
| AUG 7 | 22.4°C | 19.2°C | |
| AUG 8 | 22.4°C | 19.2°C | |
| AUG 9 | 22.3°C | 19.2°C | |
| AUG 10 | 22.2°C | 19.2°C | |
| AUG 11 | 21.5°C | 19.2°C | |
| AUG 12 | 21.5°C | 19.2°C | |
| AUG 14 | 19.2°C | 21.4°C | |
| AUG 15 | 19.2°C | 21.3°C | |
| AUG 16 | 19.2°C | 21.2°C | |
| AUG 17 | 19.2°C | 21.0°C | |
| AUG 18 | 19.2°C | 20.9°C | |
| AUG 19 | 19.2°C | 20.8°C | |
| AUG 20 | 19.2°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 | 12°C | 16°C | 20°C |
| June | 16°C | 19°C | 23°C |
| July | 19°C | 22°C | 27°C |
| August | 16°C | 19°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 |
Rotterdam: Weather Forecast
August 13
August 14
August 15
August 16
August 17
Location & Local Information
Rotterdam is a major port city located on the Nieuwe Maas, one of the branches of the river Rhine that flows through the Netherlands. The water temperature in the Nieuwe Maas varies with the seasons. During the summer, the temperature of the river typically ranges from 17°C to 22°C (63°F to 72°F), which can be suitable for swimming, though the water may feel cool for some swimmers. In the winter months, the temperature drops significantly, often between 4°C and 6°C (39°F to 43°F), making swimming both uncomfortable and unsafe due to the cold.
Swimming in the Nieuwe Maas near Rotterdam is generally not recommended. The river is a major waterway with heavy traffic from large ships and boats, which creates strong currents and potential hazards for swimmers. The water quality can also vary, especially in urban areas with industrial activity along the riverbanks. While Rotterdam has a number of designated swimming areas in safer, controlled environments like outdoor pools and nearby lakes, swimming in the Nieuwe Maas itself is typically not advised. If swimming in natural waters is desired, it's important to check for local safety regulations and water quality reports.