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Hilton Head Island in January

Find out everything about the water temperature in Hilton Head Island 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:

46.4 °F

Average:

55.6 °F

Maximum:

66.9 °F

Sea water temperature in Hilton Head Island in January

In the city of Hilton Head Island, the month of January is too cold for swimming. The minimum recorded temperature during this month was 46.4°F on January 21, 2018, with an average temperature being 55.6°F and a maximum temperature reaching 66.9°F on January 1, 2016.

Swing in the water of such temperature might lead to potential hypothermia within just a few minutes. In January, the sea temperature remains relatively stable. The average temperature stays close to 55.6°F throughout the month, with minimal changes.
Date 10 years average 2025 2024
Jan 1 57.4°F 54.9°F 53.8°F
Jan 2 57.6°F 55.6°F 53.6°F
Jan 3 57.7°F 55.4°F 53.6°F
Jan 4 57.5°F 54.9°F 53.2°F
Jan 5 57.1°F 53.9°F 52.4°F
Jan 6 56.8°F 52.8°F 52.4°F
Jan 7 56.5°F 52.4°F 53.5°F
Jan 8 56.4°F 52.8°F 53.3°F
Jan 9 55.9°F 51.7°F 52.6°F
Jan 10 55.9°F 50.0°F 54.7°F
Jan 11 55.5°F 49.6°F 53.8°F
Jan 12 55.3°F 49.2°F 51.3°F
Jan 13 55.1°F 48.5°F 51.7°F
Jan 14 55.5°F 49.6°F 51.7°F
Jan 15 55.2°F 48.2°F 52.5°F
Jan 16 55.3°F 49.1°F 53.4°F
Jan 17 55.6°F 48.6°F 53.2°F
Jan 18 55.2°F 48.8°F 53.0°F
Jan 19 55.2°F 49.0°F 52.5°F
Jan 20 55.1°F 49.8°F 52.3°F
Jan 21 55.2°F 49.5°F 51.0°F
Jan 22 55.3°F 49.6°F 50.7°F
Jan 23 54.8°F 49.1°F 49.8°F
Jan 24 54.4°F 48.7°F 50.3°F
Jan 25 54.5°F 48.8°F 52.0°F
Jan 26 54.3°F 48.6°F 52.2°F
Jan 27 54.5°F 48.8°F 52.1°F
Jan 28 55.5°F 49.8°F 52.3°F
Jan 29 55.7°F 50.0°F 54.8°F
Jan 30 54.2°F 48.5°F 53.7°F
Jan 31 53.7°F 48.0°F 53.7°F

Sea water temperature in Hilton Head Island by month

In Hilton Head Island, the months May through October offer comfortable swimming conditions, which amounts to 160 swimming days. The warmest water in Hilton Head Island was recorded on August 22, 2023, reaching a 87.7°F. While the coldest temperature occurred on January 21, 2018, dipping to 46.4°F. The average readings by season are 56.8°F in Winter, 67.8°F in Spring, 83.6°F in Summer, and 74.4°F in Autumn. January's temperature is a dip compared to warmer December at 58.6°F and February at 56.1°F.