Fernandina Beach — Water Temperature in January

Water Temperature Range

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

January: Climate and Swimming Opportunities

Average Night Air Temperature

9°C

Average Day Air Temperature

23°C

Precipitation Amount per Month

67 mm

Number of Rainy Days

Daylight per Day

10 hrs

Sunshine per Day

7 hrs

Average Wind Speed

16 km/h

Average Humidity

75%

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.