Oude Rijn River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Oude Rijn River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Oude Rijn River today is 18.8°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 |
|---|---|---|---|
| SEP 13 | 19.6°C | 20.5°C | |
| SEP 14 | 19.3°C | 20.5°C | |
| SEP 15 | 19.1°C | 20.5°C | |
| SEP 16 | 19.4°C | 20.5°C | |
| SEP 17 | 20.2°C | 20.5°C | |
| SEP 18 | 19.9°C | 20.5°C | |
| SEP 19 | 19.2°C | 20.5°C | |
| SEP 20 | 19.2°C | 20.5°C | |
| SEP 21 | 20.5°C | 18.9°C | |
| SEP 22 | 20.5°C | 19.0°C | |
| SEP 23 | 20.5°C | 19.1°C | |
| SEP 24 | 20.5°C | 19.1°C | |
| SEP 25 | 20.5°C | 19.2°C | |
| SEP 26 | 20.5°C | 19.3°C | |
| SEP 27 | 20.5°C | 19.4°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 | 3°C | 5°C | 7°C |
| February | 3°C | 6°C | 9°C |
| March | 6°C | 9°C | 12°C |
| April | 7°C | 12°C | 16°C |
| May | 11°C | 15°C | 19°C |
| June | 16°C | 21°C | 26°C |
| July | 19°C | 24°C | 28°C |
| August | 19°C | 22°C | 24°C |
| September | 15°C | 21°C | 26°C |
| October | 11°C | 14°C | 16°C |
| November | 5°C | 9°C | 12°C |
| December | 3°C | 5°C | 8°C |
Oude Rijn River: Water Temperature by Location
Oude Rijn River: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Source Leidse Rijn
• location Harmelen, Utrecht
• coordinates 52°05′31.5″N 4°57′48.5″E
Mouth North Sea
• location Katwijk, South Holland
• coordinates 52°12′43″N 4°23′54″E
Length 52 km (32 mi)
The Oude Rijn is a river in the Netherlands that flows through the province of South Holland. It is a branch of the larger Rhine River and serves primarily as a waterway for shipping and irrigation. Swimming in the Oude Rijn is possible, but it is not widely recommended due to strong currents, especially in the more industrialized sections of the river. The water is often murky due to sediment and pollution, and swimming in these areas can pose health risks.
The water temperature in the Oude Rijn varies significantly depending on the time of year. During the winter months, the temperature is generally quite cold, around 5°C to 8°C (41°F to 46°F), making swimming in the river uncomfortable. However, during the summer months, the water temperature can reach 18°C to 22°C (64°F to 72°F), which may feel more inviting for swimmers. Even during warmer months, it's important to be cautious of the river's strong currents and potential contamination from nearby urban or agricultural runoff. If you plan to swim, always check local regulations and water quality reports.