Alabama News Water

Why is Gulf Shores water brown?

Gulf Shores’ Murky Waters: A Natural Phenomenon

Visitors to Gulf Shores, Alabama, often inquire about the notably brownish hue of the water, a stark contrast to the crystal-clear waters of other tropical destinations. The discoloration is not indicative of pollution, as one might suspect, but rather a natural occurrence.

The Science Behind the Color

The brown water is primarily the result of the presence of tannins. Tannins are organic materials found in decaying plant matter, such as leaves, roots, and bark, that are washed into the Gulf from rivers and streams, particularly the Mobile Bay. These substances stain the water much like tea leaves impart color to hot water.

Another contributing factor is the sediment that is stirred up from the Gulf’s floor by waves and currents. The Gulf of Mexico is shallower near the coastline, which makes it easier for the sandy and silty bottom to mix with the water, adding to the brownish appearance.

Seasonal and Weather Influences

Seasonal weather patterns also play a role. During the summer, when the water is often calmer, the sediment has a chance to settle, resulting in clearer water. Conversely, storms and heavy rains can increase the flow of tannin-rich water and sediment into the Gulf, leading to darker water.


Q: Is the brown water in Gulf Shores safe for swimming?
A: Yes, the brown water is generally safe for swimming. It is regularly monitored for quality.

Q: Does the brown water affect marine life?
A: The tannins and sediment are natural elements of the ecosystem and do not typically harm marine life.

Q: Can the brown water color change over time?
A: Yes, the water color can vary depending on the season and recent weather events.


Tannins: Organic substances derived from plants that can cause water to become brownish in color.

Sediment: Particles of sand, silt, and other material that settle at the bottom of bodies of water.

Understanding these factors helps to appreciate the unique characteristics of Gulf Shores’ waters and underscores the importance of natural processes in shaping our environment.

By Howard Rhodes

Howard Rhodes is a prominent figure in the field of sustainable urban planning, with a special focus on renewable energy integration in American cities. His writings and research are centered on the transformative impact of green energy solutions like solar, wind, and hydroelectric power in urban environments. Rhodes advocates for the adoption of these sustainable practices to address the pressing challenges of climate change and energy security. His influential work provides insightful analysis on the economic, environmental, and social benefits of transitioning to renewable energy sources in cityscapes, making him a key voice in the movement towards more sustainable urban futures.