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Mantes-la-Jolie
Water Temperature in Mantes-la-Jolie in Seine River: Current and Forecast
On this page, you will find comprehensive information about the water temperature in Mantes-la-Jolie in Seine River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Mantes-la-Jolie
53°F
TODAY
53°F
YESTERDAY
54°F
A WEEK AGO
As of today, the minimum water temperature in Mantes-la-Jolie ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
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.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Seine River in Mantes-la-Jolie Over the Last 30 Days
Today the water temperature in Mantes-la-Jolie is lower than the same day in previous years. The water temperature range here in October is from 52°F to 63°F. The water temperature has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for Mantes-la-Jolie are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Oct 18 | 54°F | 57°F | |
| Oct 19 | 54°F | 57°F | |
| Oct 20 | 54°F | 57°F | |
| Oct 21 | 54°F | 57°F | |
| Oct 22 | 54°F | 57°F | |
| Oct 23 | 53°F | 57°F | |
| Oct 24 | 53°F | 57°F | |
| Oct 25 | 53°F | 57°F | |
| Oct 26 | 57°F | 54°F | |
| Oct 26 | 57°F | 54°F | |
| Oct 27 | 57°F | 54°F | |
| Oct 28 | 57°F | 54°F | |
| Oct 29 | 57°F | 54°F | |
| Oct 30 | 57°F | 55°F | |
| Oct 31 | 57°F | 55°F | |
| Nov 1 | 48°F | 54°F |
Water Temperature Ranges in Mantes-la-Jolie by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 41°F | 45°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 42°F | 46°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 45°F | 50°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 56°F | 63°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 62°F | 68°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 68°F | 75°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 66°F | 72°F | 81°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 64°F | 71°F | 77°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 59°F | 67°F | 75°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 57°F | 63°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 48°F | 54°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 41°F | 45°F |
Monthly Water Temperature Histogram for Seine River in Mantes-la-Jolie
Mantes-la-Jolie Weather
OCTOBER 26
43°F / 54°F
slight rain showersrain: 40% | wind: 11 mph
OCTOBER 27
43°F / 54°F
slight rain showersrain: 60% | wind: 14 mph
OCTOBER 28
48°F / 57°F
overcastrain: 43% | wind: 14 mph
Water Temperature in Mantes-la-Jolie: General Trends and Swimming Opportunities
Mantes-la-Jolie, a charming city located on the banks of the Seine River in the Yvelines department of France, experiences moderate water temperatures in the river throughout the year. In winter, the Seine's temperature near Mantes-la-Jolie tends to drop to between 5°C and 8°C, while in summer, it usually ranges from 18°C to 22°C, with peaks during heatwaves. Although the summer temperatures can be inviting, swimming in the Seine around Mantes-la-Jolie is generally not recommended due to water quality concerns and the presence of boat traffic in this busy section of the river.
In lieu of river swimming, Mantes-la-Jolie offers alternative recreational options, such as local swimming pools and leisure areas. Residents and visitors can enjoy water activities at nearby facilities that provide clean, controlled environments for swimming and other aquatic sports. The city’s parks and riverside paths also allow for pleasant walks along the Seine, offering scenic views of the river and the beautiful architecture of Mantes-la-Jolie, including the impressive Collégiale Notre-Dame.
For those who want to be close to the water without entering the Seine, activities such as canoeing and fishing are popular along the riverbanks in Mantes-la-Jolie. These allow for interaction with the Seine’s natural beauty in a safe and enjoyable way, while the city continues to improve water management efforts in line with broader initiatives to rehabilitate the river’s ecosystem over time.
Geographical Location of Mantes-la-Jolie
Frequently Asked Questions About Mantes-la-Jolie and its Water Temperatures
What is the current water temperature in Mantes-la-Jolie?
The water temperature today in Mantes-la-Jolie is 53°F (11.9°C).
What is the water temperature in Mantes-la-Jolie during the summer months?
The average water temperature in Mantes-la-Jolie during the summer months is typically between 68°F to 72°F (20°C to 22°C), and it can reach up to 81°F (27°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Mantes-la-Jolie in May?
The average water temperature in Mantes-la-Jolie in May ranges from 57°F to 68°F (14°C to 20°C).
What is the water temperature in Mantes-la-Jolie in September?
The average water temperature in Mantes-la-Jolie in September is typically between 61°F to 75°F (16°C to 24°C).
Is it possible to swim in the Seine River in Mantes-la-Jolie, and what are the available options for doing so?
Yes, it's possible to swim in the Seine River in Mantes-la-Jolie. The town offers a public swimming spot near Île l'Aumône and supervised areas during the summer months.

