Grand Bay — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Grand Bay, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Grand Bay today is 28.7°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 14 | 26.2°C | 29.5°C | |
| JUL 15 | 28.4°C | 29.5°C | |
| JUL 16 | 28.3°C | 29.5°C | |
| JUL 17 | 28.3°C | 29.5°C | |
| JUL 18 | 28.8°C | 29.5°C | |
| JUL 19 | 28.7°C | 29.5°C | |
| JUL 20 | 28.8°C | 29.5°C | |
| JUL 21 | 28.9°C | 29.5°C | |
| JUL 22 | 29.5°C | 28.7°C | |
| JUL 23 | 29.5°C | 28.8°C | |
| JUL 24 | 29.5°C | 28.8°C | |
| JUL 25 | 29.5°C | 28.9°C | |
| JUL 26 | 29.5°C | 28.9°C | |
| JUL 27 | 29.5°C | 28.9°C | |
| JUL 28 | 29.5°C | 29.0°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
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 to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 9°C | 15°C | 20°C |
| February | 8°C | 14°C | 20°C |
| March | 12°C | 17°C | 22°C |
| April | 18°C | 24°C | 30°C |
| May | 20°C | 27°C | 33°C |
| June | 20°C | 27°C | 34°C |
| July | 23°C | 30°C | 36°C |
| August | 23°C | 30°C | 36°C |
| September | 23°C | 29°C | 34°C |
| October | 22°C | 25°C | 28°C |
| November | 11°C | 17°C | 22°C |
| December | 12°C | 17°C | 21°C |
Grand Bay: Water Temperature by Location
Grand Bay: Weather Forecast
July 22
July 23
July 24
July 25
July 26
Location & Local Information
Grand Bay in Alabama is not a large freshwater lake but rather a coastal area near the Gulf of Mexico and Mobile Bay, which includes the federally protected Grand Bay National Estuarine Research Reserve and National Wildlife Refuge. Due to this location, its water temperatures follow the cycle of the northern Gulf Coast. Surface water temperatures are typically very warm for swimming in the summer, often reaching highs of 29∘C to 30∘C (84∘F to 86∘F). Conversely, in the winter, the waters become cool, with average temperatures dropping to the range of 13∘C to 17∘C (55∘F to 63∘F), making swimming generally uncomfortable.
Swimming opportunities are highly conditional and often restricted within the bay's boundaries. Since much of the area is protected as a National Wildlife Refuge and Estuarine Research Reserve, the focus is on conservation, wildlife, and limited recreation like boating and fishing. While some adjacent areas or nearby private facilities may offer swimming, caution is necessary due to the possibility of strong currents, boat traffic in the deeper channels, and the presence of estuarine wildlife. Furthermore, swimmers should be aware of water quality advisories in the Mobile Bay region, as local organizations periodically monitor for bacteria and other conditions that could make swimming unsafe.