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September 2017,
August 2017
From $139 night

Sink into serenity, dive into lobster season, or enjoy a family vacation.

October 2017
From $139 night

Escape Columbus Day weekend or ask about our value dates!

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September is the Perfect Month for Florida Keys Tourism

Travel Tips, Weather, Events and Deals

September in Marathon, Florida, offers more than Labor Day—it's a great time to catch a deal when Florida Keys tourism starts to calm down after the busy summer vacation season. Of course, Labor Day makes for a fantastic long weekend, but if you're trying to save more, you can find great deals on off-peak travel periods. Seniors can also take advantage of our special offer for a vacation in the Keys, throughout the year. Discover our spacious two and three-bedroom Florida Keys beach houses, the perfect accommodations for friends traveling together, or enjoy a romantic retreat in the Tropical Garden Guestrooms that are perfectly suited for couples.

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Marathon Weather in September

As the summer heat starts to cool down across the United States, Marathon maintains an average high temperature of 88° F (31° C). The water temperature may be around the mid-80s (30° C), but the sea is still perfect for ocean activities such as swimming, snorkeling or diving. September often brings afternoon thunder storms, but the rain rarely sticks around long enough to spoil an entire day.

You may be concerned about the Atlantic hurricane season as you plan your vacation in the Keys. Hurricanes may affect the Atlantic and Gulf coasts of the United States from June 1st through November 30th. Traditionally August 15th through October 15th presents the highest potential for storms. Tranquility Bay Resort offers a hurricane clause to protect our guests during this period so please inquire within our call center.

Average High Air Temp

88° F (31° C)

Average Low Air Temp

79° F (26° C)

Average Water Temp

86° F (30° C)

Average Rainfall

5.9 inches (14.9cm)

Average Sunset Time

7:45p.m. (19:45)

What to Wear in September

The Florida Keys still experience summer weather throughout September. Pack your summer gear, including flip flops, a swim suit, shorts and a light shirt, but be sure to bring light layers that you can add to your wardrobe when needed. If you go boating for example, bring a light jacket. Don't forget protection against the sun. We highly recommend that guests bring sunglasses, aloe or after sun cream, sun screen and a hat to protect you against UV rays.

Major April Events and Holidays

In September, enjoy a long weekend for the Labor Day holiday, enjoy senior discounts or a romantic escape.

September Federal Holidays and Important Travel Dates in 2017

  • September 4: Labor Day

Top Marathon and Nearby Florida Keys Events in September

Up to $250 for Dining

Up to $250 for Dining

Enjoy a $50/night dining credit, select dates and room types.

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Stay 5 Nights and Save More

Stay 5 Nights and Save More

Stay longer and save at Tranquility Bay! Call 877-741-7839.

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The Beach is on Sale

The Beach is on Sale

Save more on beachfront beach houses, select dates!

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