Boulogne-Billancourt — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Boulogne-Billancourt, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Boulogne-Billancourt today is 21.4°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 4 | 21.5°C | 18.0°C | |
| AUG 5 | 21.5°C | 18.0°C | |
| AUG 6 | 21.5°C | 18.0°C | |
| AUG 7 | 21.5°C | 18.0°C | |
| AUG 8 | 21.4°C | 18.0°C | |
| AUG 9 | 21.4°C | 18.0°C | |
| AUG 10 | 21.4°C | 18.0°C | |
| AUG 11 | 21.4°C | 18.0°C | |
| AUG 12 | 18.0°C | 21.2°C | |
| AUG 13 | 18.0°C | 21.1°C | |
| AUG 14 | 18.0°C | 20.9°C | |
| AUG 15 | 18.0°C | 20.7°C | |
| AUG 16 | 18.0°C | 20.6°C | |
| AUG 17 | 18.0°C | 20.4°C | |
| AUG 18 | 18.0°C | 20.2°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 | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 5°C | 9°C | 11°C |
| April | 8°C | 11°C | 14°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 18°C | 22°C |
| July | 16°C | 20°C | 25°C |
| August | 13°C | 18°C | 22°C |
| September | 11°C | 16°C | 20°C |
| October | 8°C | 11°C | 14°C |
| November | 5°C | 8°C | 12°C |
| December | 3°C | 7°C | 9°C |
Boulogne-Billancourt: Weather Forecast
August 12
August 13
August 14
August 15
Location & Local Information
Boulogne-Billancourt, located just west of Paris, is situated on a bend of the Seine River, offering beautiful riverside views and green spaces. The Seine’s water temperature near Boulogne-Billancourt varies seasonally, generally averaging between 5°C to 10°C in winter and rising to 20°C or more in the summer months. Although these summer temperatures might seem inviting, swimming in the Seine in Boulogne-Billancourt is not permitted due to water quality and safety concerns.
In recent years, there have been efforts to improve the water quality of the Seine in anticipation of events such as the 2024 Paris Olympics, where some sections of the river in Paris will be opened for swimming events. However, Boulogne-Billancourt does not yet have designated public swimming areas along the Seine. Residents and visitors can enjoy various riverside activities, including picnicking, walking, and cycling, especially along the Parc de l’Île Saint-Germain, a popular green space with scenic views of the Seine.
For those looking to swim, several public pools are available in Boulogne-Billancourt and the surrounding area. The city’s facilities, like the Centre Aquatique de Boulogne-Billancourt, provide safe and convenient options for recreational swimming, while offering access to nearby sections of the Seine for walks and outdoor activities.