Marengo — Water Temperature in December

Water Temperature Range

14°C

minimum

16°C

average

21°C

maximum

Water Temperature Chart for December

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

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

Climate and Swimming Opportunities in Marengo in December

Average Day Air Temperature

22°C

Average Night Air Temperature

12°C

Precipitation Amount per Month

58 mm

Number of Rainy Days

Daylight per Day

15 hrs

Sunshine per Day

8 hrs

Average Wind Speed

24 km/h

Average Humidity

56%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.