What is the weather like cruising the Caribbean Sea and Gulf of Mexico during August?

The weather during August is a very warm in the Caribbean Sea and Gulf of Mexico and this is also the month when tropical cyclones become active. Gale force winds are rare, however,  but can occur in the vicinity of tropical storms and hurricanes. 

August Pilot Chart


The prevailing winds across the Caribbean during August tend to be from the east,  generally light to moderate (7-16 knots) except in the south-central portion of the Caribbean where moderate to fresh (11-21 knot) winds prevail from the east or northeast and where  rough seas of  8 feet or higher can be expected about 20-30% of the time. 

Over the Gulf of Mexico the wind tends to be light (7-11 knots) and more variable in direction. 

Tropical Cyclones 

Tropical cyclone activity is most frequent over the northeastern Caribbean Sea and waters north of Puerto Rico and Hispaniola as well as the Bahamas and east of Florida  where there is a 30-40% risk of at least one storm occurring during  the month of August.   The risk decreases to around  20% over the Gulf of Mexico and to below 10% over the southwestern Caribbean.

August Tropical Cyclone tracks


August is very warm with air temperatures averaging 82F to 85F and sea temperatures range between 83F to 86F.


About Fred Pickhardt

I am a marine meteorologist and sailed briefly with American Export Lines in the Far East trade after graduating from State University of New York Maritime College. I have extensive experience in weather analysis, weather forecasting, optimum ship routing, vessel performance evaluations and forensic weather event reconstructions. I founded Ocean Weather Services and as Owner and Chief Consultant currently provide optimum ship routing services and forensic marine weather reports to the maritime industry.
This entry was posted in Climatology, Cruise Weather, Tropical Cyclones and tagged , , , , . Bookmark the permalink.

Leave a Reply

Your email address will not be published. Required fields are marked *