March is a popular month to ask about St George Island because conditions can shift week to week along this coast. Expect the water near 21.0°C, with daily variation from wind, tides and recent storms. We refresh the live value from Open-Meteo Marine every hour, so the headline above always reflects the current state of the Gulf of Mexico.
St George Island sea temperature in March — averages 21.0°C
The sea at St George Island in United States averages 21.0°C during March, based on long-run climatology for the Gulf of Mexico. Use the live reading below for today's actual water and the monthly grid to compare with the rest of the year.
Average sea · March
21.0°C
warm · Excellent
Live water now
…
Recommended wetsuit
Shorty 2mm
At 21.0°C a 2mm shorty keeps surfers warm; lap swimmers can usually skip the neoprene.
Monthly comparison
Yes — comfortable for most swimmers · St George Island
Can you swim at St George Island in June? — 29.0°C water29.0°CCan you swim at St George Island in July? — 30.0°C water30.0°CCan you swim at St George Island in August? — 30.0°C water30.0°CCan you swim at St George Island in September? — 29.0°C water29.0°CCan you swim at St George Island in October? — 27.0°C water27.0°CCan you swim at St George Island in November? — 23.0°C water23.0°C
Frequently asked questions
What is the average sea temperature at St George Island in March?
St George Island averages 21.0°C in March, based on long-run climatology for the Gulf of Mexico.
Is the sea warm enough to swim at St George Island in March?
Yes, most swimmers find 21.0°C comfortable for unrestricted swimming.
Do I need a wetsuit at St George Island in March?
Most swimmers don't need a wetsuit; a rash vest helps for longer sessions.