Average monthly water temperature in Gretna, the United States of America
On this page you find the mean water temperature over the year in Gretna (Louisiana), the United States of America. Get insights into the water temperature fluctuations and discover what they mean for visitors.
Water temperatures in Gretna remain warm year-round, perfect for aquatic activities. The warmest month, June, has an average temperature of 28°C (82°F).
The coolest water temperature month is January, averaging 20°C (68°F). Whether you’re swimming or just enjoying the water, Gretna offers ideal conditions year-round.