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Boulogne-sur-Mer in July

Find out everything about the water temperature in Boulogne-sur-Mer in July. Average, minimum and maximum recorded temperatures as well as daily temperature in July for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in July
Minimum:

59.7 °F

Average:

63.8 °F

Maximum:

69.8 °F

Sea water temperature in Boulogne-sur-Mer in July

In the city of Boulogne-sur-Mer, the month of July is somewhat too cool for swimming. The minimum recorded temperature during this month was 59.7°F on July 1, 2021, with an average temperature being 63.8°F and a maximum temperature reaching 69.8°F on July 21, 2022.

Most people would find such water temperature somewhat too cold for swimming. In July, the sea temperature remains relatively stable. The average temperature stays close to 63.8°F throughout the month, with minimal changes.
Date 10 years average 2024 2023
Jul 1 61.9°F 62.1°F 63.1°F
Jul 2 62.2°F 62.7°F 63.3°F
Jul 3 62.6°F 63.1°F 64.7°F
Jul 4 62.6°F 62.9°F 64.5°F
Jul 5 62.6°F 64.2°F 63.8°F
Jul 6 62.7°F 63.8°F 63.8°F
Jul 7 62.8°F 63.6°F 65.1°F
Jul 8 63.1°F 63.2°F 66.1°F
Jul 9 63.0°F 62.9°F 65.2°F
Jul 10 62.8°F 62.7°F 65.1°F
Jul 11 63.1°F 63.3°F 65.6°F
Jul 12 63.0°F 63.3°F 64.2°F
Jul 13 63.0°F 62.5°F 65.2°F
Jul 14 63.2°F 62.8°F 64.8°F
Jul 15 63.4°F 63.8°F 63.9°F
Jul 16 63.6°F 64.1°F 64.7°F
Jul 17 63.8°F 63.9°F 64.4°F
Jul 18 64.1°F 63.9°F 65.2°F
Jul 19 64.6°F 65.2°F 65.1°F
Jul 20 64.8°F 65.9°F 65.1°F
Jul 21 65.0°F 65.5°F 64.7°F
Jul 22 64.9°F 65.5°F 64.9°F
Jul 23 64.8°F 65.0°F 64.7°F
Jul 24 65.0°F 65.0°F 64.6°F
Jul 25 65.0°F 64.4°F 64.7°F
Jul 26 65.1°F 64.2°F 64.6°F
Jul 27 65.3°F 65.3°F 64.8°F
Jul 28 65.1°F 65.8°F 64.7°F
Jul 29 65.2°F 65.8°F 64.8°F
Jul 30 65.5°F 66.6°F 66.1°F
Jul 31 65.5°F 66.4°F 65.7°F

Sea water temperature in Boulogne-sur-Mer by month

In an average year, Boulogne-sur-Mer offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Boulogne-sur-Mer was recorded on August 22, 2022, reaching a 70.1°F. While the coldest temperature occurred on February 19, 2021, dipping to 41.6°F. The average readings by season are 48.2°F in Winter, 49.9°F in Spring, 63.1°F in Summer, and 60.8°F in Autumn. The average temperature in July is slightly warmer than June's average of 59.5°F. And in August, the temperature is expected to rise further, potentially reaching an average of 65.9°F.

Popular neighboring cities and resorts

City Water temperature* Distance**
Calais 52.5°F 19mi
Dunkerque 52.4°F 40mi
Canterbury 48.8°F 45mi

* current water temperature in this city

** straight line distance from Boulogne-sur-Mer