Mustang Island — Water Temperature in March

Water Temperature Range

13°C

minimum

19°C

average

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

March: Climate and Swimming Opportunities

Average Night Air Temperature

14°C

Average Day Air Temperature

22°C

Precipitation Amount per Month

38 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

6 hrs

Average Wind Speed

21 km/h

Average Humidity

74%

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.