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Grand Isle
Water Temperature in the Gulf of Mexico in Grand Isle, Louisiana: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Grand Isle in Louisiana, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Grand Isle
64°F
TODAY
64°F
YESTERDAY
64°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Gulf of Mexico (Gulf of America) in Grand Isle is 18°F. The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Gulf of Mexico (Gulf of America) in Grand Isle Over the Last 30 Days
The water temperature in Grand Isle today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Grand Isle will rise slightly in the coming days and reach 67°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United States to enhance accuracy.
Water temperature data for Grand Isle and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Mar 19 | 64°F | 66°F | |
| Mar 20 | 65°F | 67°F | |
| Mar 21 | 64°F | 67°F | |
| Mar 22 | 64°F | 67°F | |
| Mar 23 | 65°F | 68°F | |
| Mar 24 | 65°F | 68°F | |
| Mar 25 | 64°F | 68°F | |
| Mar 26 | 64°F | 69°F | |
| Mar 27 | 69°F | 64°F | |
| Mar 28 | 70°F | 65°F | |
| Mar 29 | 70°F | 65°F | |
| Mar 30 | 71°F | 66°F | |
| Mar 31 | 71°F | 67°F | |
| Apr 1 | 69°F | 67°F | |
| Apr 2 | 69°F | 67°F | |
| Apr 3 | 69°F | 67°F |
Sea Temperature in Grand Isle Throughout the Year
Throughout the year, the sea temperature in Grand Isle exceeds 77°F (25°C) for 156 days, exceeds 72°F (22°C) for 203 days, and exceeds 64°F (18°C) for 262 days.
Below is the annual chart of sea temperature changes in the Gulf of Mexico (Gulf of America) in Grand Isle.
January
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 60°F | 66°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 60°F | 66°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 65°F | 75°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 64°F | 72°F | 79°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 72°F | 79°F | 86°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 77°F | 83°F | 90°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 82°F | 86°F | 90°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 81°F | 86°F | 91°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 77°F | 83°F | 90°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 68°F | 76°F | 84°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 69°F | 77°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 61°F | 68°F |
Monthly Water Temperature Histogram for Gulf of Mexico (Gulf of America) in Grand Isle
You can explore detailed data on how the water temperature in Grand Isle varies each month:
What Beaches Are There In and Around Grand Isle?
Grand Isle Beach
Grand Isle Beach is a 4-stars sandy beach, is located directly in Grand Isle. There is parking. There are cafés. Grand Isle Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Grand Isle State Beach
Grand Isle State Beach is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Grand Isle. There is parking. There are restrooms. There are cafés. Grand Isle State Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Grand Isle Weather
MARCH 27
70°F / 72°F
overcast clouds: 85-100%humidity: 84% | wind: 6 mph
MARCH 28
68°F / 72°F
overcast clouds: 85-100%humidity: 88% | wind: 5 mph
MARCH 29
72°F / 73°F
light rainhumidity: 92% | wind: 4 mph
MARCH 30
72°F / 73°F
few clouds: 11-25%humidity: 94% | wind: 4 mph
Sea Temperature in the Gulf of Mexico (Gulf of America) in Grand Isle: General Trends and Swimming Opportunities
The coastal region of Louisiana experiences a humid subtropical climate characterized by hot, humid summers and mild winters. The area often faces high levels of rainfall throughout the year, with a high risk of hurricanes between June and November.
Grand Isle is located in North America in the Northern Hemisphere at a latitude of 29 degrees, along the shores of the Gulf of Mexico. Grand Isle lies within the Louisiana in United States.
The average annual daytime air temperature in Grand Isle is 77°F (25°C), with the average nighttime temperature being 61°F (16°C). The highest average daily temperature occurs in July, reaching 90°F (32°C), while the lowest is in January at 62°F (17°C). As for nighttime temperatures, the minimum average temperature of 44°F (7°C) is recorded in January, and the maximum is in July, reaching 75°F (24°C).
According to historical data, Grand Isle experiences 110 rainy days per year, which accounts for 30 percent of all days in the year. On average, there are 9 rainy days each month. The wettest month is July, with 14 rainy days and 7.6 inches (192 mm) of precipitation, while the driest month is October, which typically has 6 rainy days and only 4.5 inches (115 mm) of precipitation.
The average annual water temperature in Gulf of Mexico in Grand Isle is 73°F (23°C). In January, the water reaches its lowest point of the year at 54°F (12°C), while in August, it peaks at 91°F (33°C). The months suitable for comfortable beach vacations and swimming in the Gulf of Mexico are May, June, July, August, and September. During this period, the water temperature stays above 68°F (20°C) and can reach up to 91°F (33°C) on some days.
Geographical Location of Grand Isle
Nearby Cities
Frequently Asked Questions About Grand Isle and its Water Temperatures
What is the current sea temperature in Grand Isle?
The water temperature today in the Gulf of Mexico (Gulf of America) in Grand Isle is 64°F (17.7°C).
In which months is the water temperature in Grand Isle comfortable for swimming?
The water temperature in the Gulf of Mexico in Grand Isle is comfortable for swimming and beach vacations in May, June, July, August, and September.
What is the water temperature in Grand Isle during the winter?
The water temperature in the Gulf of Mexico in Grand Isle during the winter ranges from 54°F to 68°F (12°C to 20°C).
What is the water temperature in Grand Isle during the spring?
The water temperature in the Gulf of Mexico in Grand Isle during the spring ranges from 55°F to 86°F (13°C to 30°C).
What is the water temperature in Grand Isle during the summer?
The water temperature in the Gulf of Mexico in Grand Isle during the summer ranges from 77°F to 91°F (25°C to 33°C).
What is the water temperature in Grand Isle during the fall?
The water temperature in the Gulf of Mexico in Grand Isle during the fall ranges from 61°F to 90°F (16°C to 32°C).
Is it possible to swim in the sea in Grand Isle year-round?
No, it is not possible to swim in the Gulf of Mexico in Grand Isle year-round, the months suitable for comfortable swimming are May, June, July, August, and September.
What sea temperatures can I expect in Grand Isle in the next month?
In April, the water temperature in the Gulf of Mexico (Gulf of America) in Grand Isle will range between 64°F (18°C) and 79°F (26°C)