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 17.6°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

63.7

°F

June 9, 03:38

Trend:

increasing

Yesterday:

63.5°F

Tomorrow:

63.8°F

Sunrise:

06:13

Sunset:

22:03

Day Length:

15 h. 50 min.

Saint-Nazaire in June

Minimum:

48.2°F

Average:

49.0°F

Maximum:

51.5°F

Sea water temperature in Saint-Nazaire today

As of now, in Saint-Nazaire, the water temperature is 63.7°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 65.2°F on 2023, while the historical minimum was 60.4°F on 2015.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 63.8°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Saint-Nazaire

Date	Current Year actual* / forecast**	last year	10 years average
May 26	61.7°F	62.2°F	60.9°F
May 27	61.5°F	62.0°F	61.0°F
May 28	61.1°F	62.5°F	61.4°F
May 29	61.1°F	62.4°F	61.3°F
May 30	62.4°F	62.6°F	61.1°F
May 31	63.6°F	63.2°F	61.5°F
Jun 1	63.5°F	62.2°F	61.6°F
Jun 2	63.7°F	61.8°F	61.8°F
Jun 3	64.4°F	61.3°F	62.0°F
Jun 4	64.1°F	61.3°F	62.2°F
Jun 5	63.9°F	62.0°F	62.2°F
Jun 6	63.8°F	61.9°F	62.3°F
Jun 7	64.9°F	61.9°F	62.6°F
Jun 8	63.5°F	62.4°F	62.7°F
Jun 9	63.7°F	62.4°F	62.9°F
Jun 10	63.8°F	63.4°F	63.0°F
Jun 11	63.8°F	62.9°F	63.0°F
Jun 12	63.7°F	62.4°F	62.9°F
Jun 13	63.8°F	62.7°F	63.0°F
Jun 14	63.8°F	62.4°F	62.9°F
Jun 15	63.9°F	62.2°F	63.1°F
Jun 16	63.9°F	62.1°F	63.1°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, 65.7°F in Summer, and 60.5°F in Autumn.