🌡️ What Are the Water Temperatures in Marathon, Florida?
Home / 🌡️ What Are the Water Temperatures in Marathon, Florida?
🌡️ What Are the Water Temperatures in Marathon, Florida?
The ocean around Marathon stays warm and swimmable all year long.
Typical surface temperatures range from 72°F (22°C) in winter to 87°F (30.5°C) in late summer.
Month
Avg. Water Temp
January 72°F (22°C)
March 74°F (23°C)
May 80°F (27°C)
July 86°F (30°C)
September 87°F (30.5°C)
November 78°F (25.5°C)
Voice Search Answer:
🎤 Water temps in Marathon Florida range from about 72°F in winter to 87°F in summer — perfect for swimming and snorkeling year-round.
Local Tip:
Guests love relaxing in our heated pools or taking sunset swims right from their private docks at FloridaKeysVillas.com.
