What is the current water temperature in Saint-Nazaire?

Q: What is the current water temperature in Saint-Nazaire?

As of now, in Saint-Nazaire, the water temperature is 13.83°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

France > Saint-Nazaire

Water temperature in Saint-Nazaire

Detailed information about the current water temperature in Saint-Nazaire. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

56.9

°F

November 16, 12:20

Trend:

decreasing

Yesterday:

57.2°F

Tomorrow:

56.6°F

Sunrise:

08:14

Sunset:

17:33

Day Length:

9 h. 19 min.

Saint-Nazaire in November

Minimum:

47.2°F

Average:

48.8°F

Maximum:

51.3°F

Sea water temperature in Saint-Nazaire today

As of now, in Saint-Nazaire, the water temperature is 56.9°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.1°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 57.8°F on 2022, while the historical minimum was 54.1°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.0°F, the minimum temperature may reach 55.4°F, and the maximum might stay at 56.6°F.

Daily water temperature in Saint-Nazaire

Date	Current Year actual* / forecast**	last year	10 years average
Nov 2	58.5°F	59.7°F	58.8°F
Nov 3	58.2°F	59.3°F	58.4°F
Nov 4	58.1°F	58.9°F	58.1°F
Nov 5	58.0°F	58.6°F	57.8°F
Nov 6	58.0°F	58.2°F	57.4°F
Nov 7	58.1°F	57.8°F	57.2°F
Nov 8	57.4°F	57.7°F	56.9°F
Nov 9	57.2°F	57.5°F	56.7°F
Nov 10	57.3°F	57.5°F	56.6°F
Nov 11	57.4°F	57.2°F	56.4°F
Nov 12	57.5°F	56.9°F	56.1°F
Nov 13	57.4°F	56.9°F	56.1°F
Nov 14	57.3°F	57.0°F	56.2°F
Nov 15	57.2°F	55.8°F	56.0°F
Nov 16	56.9°F	56.5°F	55.8°F
Nov 17	56.6°F	55.8°F	55.5°F
Nov 18	56.5°F	55.7°F	55.3°F
Nov 19	56.1°F	55.5°F	55.0°F
Nov 20	55.9°F	55.4°F	54.8°F
Nov 21	55.7°F	55.2°F	54.5°F
Nov 22	55.6°F	54.3°F	54.5°F
Nov 23	55.4°F	53.9°F	54.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Saint-Nazaire by month

In an average year, Saint-Nazaire offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Saint-Nazaire was recorded on July 24, 2019, reaching a 73.0°F. While the coldest temperature occurred on February 2, 2025, dipping to 44.8°F. The average readings by season are 49.0°F in Winter, 54.3°F in Spring, 65.8°F in Summer, and 60.5°F in Autumn.