Kaštel Sućurac — Water Temperature in December

Water Temperature Range

12°C

minimum

16°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	2025	2024	2023	2022
DEC 1	18°C	17°C	19°C	18°C
DEC 2	18°C	17°C	18°C	18°C
DEC 3	18°C	17°C	18°C	17°C
DEC 4	17°C	17°C	17°C	17°C
DEC 5	18°C	17°C	18°C	18°C
DEC 6	17°C	16°C	18°C	18°C
DEC 7	18°C	17°C	17°C	18°C
DEC 8	17°C	17°C	17°C	17°C
DEC 9	17°C	16°C	17°C	17°C
DEC 10	17°C	16°C	17°C	17°C
DEC 11	17°C	16°C	17°C	17°C
DEC 12	17°C	16°C	17°C	17°C
DEC 13	17°C	15°C	17°C	17°C
DEC 14	17°C	15°C	17°C	17°C
DEC 15	17°C	15°C	17°C	17°C
DEC 16	16°C	15°C	17°C	17°C
DEC 17	16°C	15°C	16°C	17°C
DEC 18	16°C	15°C	16°C	17°C
DEC 19	16°C	15°C	16°C	17°C
DEC 20	16°C	15°C	16°C	17°C
DEC 21	16°C	15°C	15°C	17°C
DEC 22	16°C	16°C	15°C	16°C
DEC 23	16°C	15°C	16°C	16°C
DEC 24	16°C	15°C	15°C	16°C
DEC 25	16°C	15°C	16°C	16°C
DEC 26	16°C	15°C	16°C	16°C
DEC 27	16°C	15°C	16°C	16°C
DEC 28	16°C	16°C	15°C	16°C
DEC 29	15°C	15°C	15°C	16°C
DEC 30	15°C	15°C	15°C	16°C
DEC 31	15°C	15°C	14°C	16°C

December: Climate and Swimming Opportunities

Average Night Air Temperature

6°C

Average Day Air Temperature

12°C

Precipitation Amount per Month

94 mm

Number of Rainy Days

Daylight per Day

9 hrs

Sunshine per Day

3 hrs

Average Wind Speed

13 km/h

Average Humidity

74%

With such a ratio between the average monthly temperatures of water and air, swimming usually feels uncomfortably cold. Even a short dip can leave you chilled, especially once you get out into the cool air.