Jekyll Island — Water Temperature in January

Water Temperature Range

11°C

minimum

14°C

average

19°C

maximum

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Water Temperature Chart for Month

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

Day	2026	2025	2024	2023
JAN 1	15°C	15°C	16°C	16°C
JAN 2	15°C	14°C	15°C	15°C
JAN 3	14°C	14°C	15°C	15°C
JAN 4	14°C	14°C	15°C	13°C
JAN 5	14°C	14°C	15°C	13°C
JAN 6	13°C	14°C	15°C	13°C
JAN 7	13°C	13°C	15°C	13°C
JAN 8	14°C	13°C	15°C	13°C
JAN 9	14°C	13°C	15°C	14°C
JAN 10	14°C	13°C	14°C	14°C
JAN 11	14°C	13°C	14°C	14°C
JAN 12	14°C	12°C	14°C	14°C
JAN 13	14°C	12°C	14°C	15°C
JAN 14	15°C	12°C	13°C	16°C
JAN 15	15°C	12°C	14°C	15°C
JAN 16	15°C	11°C	14°C	16°C
JAN 17	14°C	12°C	13°C	16°C
JAN 18	14°C	11°C	13°C	15°C
JAN 19	14°C	11°C	13°C	14°C
JAN 20	14°C	12°C	13°C	16°C
JAN 21	14°C	12°C	14°C	15°C
JAN 22	13°C	12°C	14°C	15°C
JAN 23	13°C	12°C	14°C	14°C
JAN 24	13°C	12°C	14°C	14°C
JAN 25	13°C	11°C	14°C	15°C
JAN 26	13°C	11°C	14°C	15°C
JAN 27	13°C	10°C	14°C	15°C
JAN 28	13°C	11°C	14°C	15°C
JAN 29	13°C	10°C	14°C	16°C
JAN 30	12°C	10°C	15°C	16°C
JAN 31	12°C	11°C	15°C	15°C

January: Climate and Swimming Opportunities

Average Night Air Temperature

4°C

Average Day Air Temperature

15°C

Precipitation Amount per Month

88 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

6 hrs

Average Wind Speed

14 km/h

Average Humidity

70%

With such a ratio between the average monthly temperatures of water and air, swimming feels very cold and is only for cold-water enthusiasts. Most people will prefer just a brief splash, because warming up afterward can take time.