The best time of year to dive in the United States depends on the specific location and the type of marine life you want to see. The United States is a large country with a diverse range of marine ecosystems, and the best time to dive can vary significantly depending on where you go.
In general, the water temperature in the United States ranges from the mid-50s to mid-70s Fahrenheit (12-24°C) throughout the year, making it suitable for diving year-round in many locations. However, the water may be slightly cooler during the winter months (December to February) and slightly warmer during the summer months (June to August).
Visibility in the United States’ waters tends to be best from April to November, with visibility ranging from 30-100 feet (9-30 meters) depending on the location. During this time, the water is also generally calm and clear, which makes for excellent diving conditions.
The type of marine life you can expect to see can also vary by season and location. For example, if you are interested in seeing larger pelagic species, such as sharks and manta rays, the best time to visit is from November to May in many locations. If you want to see a greater variety of smaller marine life, such as nudibranchs and pygmy seahorses, the best time to visit is from June to October in many locations.
Overall, the best time to dive in the United States will depend on your personal preferences and what you hope to see while diving. It’s always a good idea to check the weather and water conditions before planning a dive trip to ensure that you have the best possible experience.