Bonn — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bonn, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bonn today is 18.2°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 | 18.2°C | 18.5°C | |
| SEP 14 | 18.6°C | 18.5°C | |
| SEP 15 | 18.4°C | 18.5°C | |
| SEP 16 | 19.5°C | 18.5°C | |
| SEP 17 | 19.6°C | 18.5°C | |
| SEP 18 | 18.8°C | 18.5°C | |
| SEP 19 | 18.3°C | 18.5°C | |
| SEP 20 | 17.9°C | 18.5°C | |
| SEP 21 | 18.5°C | 18.2°C | |
| SEP 22 | 18.5°C | 18.2°C | |
| SEP 23 | 18.5°C | 18.2°C | |
| SEP 24 | 18.5°C | 18.3°C | |
| SEP 25 | 18.5°C | 18.3°C | |
| SEP 26 | 18.5°C | 18.3°C | |
| SEP 27 | 18.5°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 | 3°C | 6°C | 8°C |
| February | 4°C | 6°C | 8°C |
| March | 6°C | 9°C | 11°C |
| April | 7°C | 11°C | 15°C |
| May | 10°C | 15°C | 20°C |
| June | 16°C | 21°C | 25°C |
| July | 18°C | 21°C | 26°C |
| August | 17°C | 21°C | 25°C |
| September | 14°C | 19°C | 23°C |
| October | 10°C | 12°C | 14°C |
| November | 5°C | 9°C | 11°C |
| December | 3°C | 6°C | 9°C |
Bonn: Weather Forecast
September 21
September 22
September 23
September 24
September 25
September 26
Location & Local Information
Bonn, a historic city in western Germany, is situated on the banks of the Rhine River. The Rhine, one of Europe’s most significant waterways, plays an essential role in Bonn's identity and economy. The city offers beautiful riverside parks and promenades, where locals and tourists can enjoy walks, cycling, and views of the river. In terms of water activities, while some areas of the Rhine may be accessible for swimming, it is not generally recommended due to strong currents and river traffic. However, river cruises and boat trips are popular ways to experience the Rhine.
The water temperature in the Rhine near Bonn varies throughout the year. In summer, it typically ranges from 17°C to 22°C (63°F to 72°F), providing comfortable conditions for those enjoying activities on or near the water. In winter, the temperature can drop to around 5°C to 7°C (41°F to 45°F).