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Hermanus in January

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

58.8 °F

Average:

65.6 °F

Maximum:

70.8 °F

Sea water temperature in Hermanus in January

In the city of Hermanus, the month of January is somewhat too cool for swimming. The minimum recorded temperature during this month was 58.8°F on January 11, 2024, with an average temperature being 65.6°F and a maximum temperature reaching 70.8°F on January 12, 2025.

Most people would find such water temperature somewhat too cold for swimming. In January, the sea temperature remains relatively stable. The average temperature stays close to 65.6°F throughout the month, with minimal changes.
Date 10 years average 2025 2024
Jan 1 65.6°F 66.3°F 61.5°F
Jan 2 65.8°F 67.2°F 61.8°F
Jan 3 65.8°F 67.5°F 60.9°F
Jan 4 65.4°F 67.7°F 62.0°F
Jan 5 65.6°F 68.9°F 62.3°F
Jan 6 65.1°F 68.5°F 60.6°F
Jan 7 65.0°F 68.4°F 59.3°F
Jan 8 65.2°F 69.6°F 59.1°F
Jan 9 65.2°F 69.4°F 58.8°F
Jan 10 65.5°F 70.3°F 59.3°F
Jan 11 65.4°F 69.7°F 58.8°F
Jan 12 65.8°F 70.8°F 59.4°F
Jan 13 65.9°F 70.4°F 61.1°F
Jan 14 66.3°F 69.9°F 62.9°F
Jan 15 66.4°F 69.5°F 64.7°F
Jan 16 66.1°F 67.7°F 65.6°F
Jan 17 65.6°F 67.8°F 65.2°F
Jan 18 65.4°F 67.7°F 63.6°F
Jan 19 65.3°F 68.3°F 62.3°F
Jan 20 65.6°F 69.3°F 62.4°F
Jan 21 65.7°F 68.8°F 61.6°F
Jan 22 65.7°F 68.2°F 62.4°F
Jan 23 65.9°F 68.0°F 61.6°F
Jan 24 66.3°F 67.6°F 62.0°F
Jan 25 66.0°F 68.3°F 61.9°F
Jan 26 65.7°F 69.7°F 59.9°F
Jan 27 65.6°F 69.4°F 61.3°F
Jan 28 65.3°F 69.3°F 61.7°F
Jan 29 65.5°F 70.1°F 61.3°F
Jan 30 65.4°F 69.1°F 60.5°F
Jan 31 65.4°F 66.8°F 63.0°F

Sea water temperature in Hermanus by month

In an average year, Hermanus offers no days when the water temperature is warm enough to swim comfortably. The warmest water in Hermanus was recorded on January 12, 2025, reaching a 70.8°F. While the coldest temperature occurred on April 15, 2024, dipping to 51.4°F. The average readings by season are 65.1°F in Winter, 60.8°F in Spring, 59.2°F in Summer, and 60.7°F in Autumn. In January, the temperature is higher than December's average of 64.9°F and February's average of 64.8°F.