Key West weather in December: What to expect when visiting!

October 13, 2021

Are you wondering what the Key West weather in December is like? If so, keep reading!


If you’re planning a winter getaway to Key West this year, you’re probably looking for some reliable information about Key West weather in December! You might be wondering to yourself, what is the weather in Key West in December like? We all know that the success of a trip often depends on the weather, so it’s a key question!

Visiting Key West in December is a perfect time to visit. It’s one of the warmest places in the USA in December, and the weather in Key West in December tends to be mild, warm and pleasant. Perfect if you’re hoping to escape the winter chill that takes over many of the northern states. Key West weather in December is about as pleasant as you can find within the USA – so it’s a great choice.

Here we’ll discuss everything related to Key West weather in December, including our recommendations on whether it’s worth it… Or not!

Read more about Florida weather: Does it snow in Florida? If so… Where?!


Key West weather in December – the lowdown!

Right, let’s start with a low down of what to expect for Key West weather in December! It’s worth remembering, that even though the Key West weather in December is pleasant and warm, it won’t be as warm as the spring or summer months.

We’ve added a few bullet points below though, which will give you an idea of what to expect for the Key West weather in December.

  • Expect Key West weather in December to be pleasant and warm.
  • Key West weather in December is reliable, and makes December an ideal time for lots of outdoor activities.
  • Key West weather in December might feel a little chilly in the evenings, so plan to take some light layers.
  • The humidity in December is 77%, which can make some days feel warmer.
  • Go for a ‘heated pool’ if you can – as it’ll make swimming much more enjoyable! Some unheated pools might feel chilly at this time of year in Key West.

Read more about visiting Florida at Christmas: The best drive-through Christmas lights in Florida

Chuck Wagner / Shutterstock.com

Key West weather in December averages!

Now you have a brief idea of what the Key West weather in December is like, let’s talk about some of the weather averages. Looking at the Key West weather in December averages is often the best way to get an idea of what to expect, what to pack for your trip, and what kind of activities to book in!

Key West weather in December (highest average temp): 75.2°F (24°C)

Key West weather in December (lowest average temp): 72.5°F (22.5°C)

Sunshine hours per day: 6.5 hours

Average rainy days: 13.4 days

Humidity: 77%


Is December a good time to visit Key West?

So, now you know about the Key West weather in December, it’s time to think about everything else! Is December a good time to visit Key West?

Taking a look above at the key figures for Key West weather in December, it’s pretty clear, that Key West is one of the warmest and sunniest destinations in the USA during December. In our opinion, this makes it a pretty great place to visit in December, especially if you’re looking to escape the cold or winter chill!

The Key West weather in December means that tourists and visitors can enjoy a little sunshine and warm weather, whilst exploring all that Key West has to offer. Because the Key West weather in December is so warm and mild, it makes it a great time to visit for outdoor pursuits and activities too!

Bear in mind, because of the festive season, Key West in December is pretty busy. Lots of people also want to escape to some sunshine – so hotels and AirBnBs can book out in advance.

Read more about Florida at Christmas: Spending Christmas in Florida: The ultimate guide!


Does it rain in Key West in December?

Unfortunately, the Key West weather in December isn’t perfect… And you might experience a little rain during your trip in December. It won’t necessarily be heavy rain – but there are approximately 13 days of rain in December. But don’t let this put you off, because often, the rain can lead to a clear sunny afternoon or evening.

Don’t worry though – this doesn’t put a dampener on things. Key West is always popular in December (regardless of occasional rain!).


Can you swim in the ocean in Key West, in December?

As well as wondering about the Key West weather in December, you might be curious about the ocean temperature. The ocean temperature in December in Key West tends to be around 74.5°F (23.6°C). This isn’t ‘too cold’ for some people, but might be for others. It depends what your tolerance is for swimming outdoors!

If you’re used to swimming in the ocean in some of the colder states (such as northern California or New York State) you might find this temperate perfectly pleasant!

There are certainly less people (on average) swimming in the ocean during this time of year, but the ocean won’t be empty! Many of the locals still take plenty of winter ocean dips and do activities such snorkelling or diving – especially as the water tends to have great visibility at this time of year too.

If the sea does feel a little too cold for you – you’ll probably have a pool at your hotel, so you can always swim there instead! That’s our advice anyway, having a great hotel pool is a perfect way to enjoy the Key West weather in December!

Two snorkelers enjoying Key West weather in December!

Visiting Key West in December is a good idea if…

  • You’re fine with Key West weather in December (including occassional rain)
  • You’d like to explore Key West during the festive season
  • You don’t mind cooler temperatures (maybe you prefer them!)
  • You don’t mind a little bit of rain

Visiting Key West in December is a bad idea if…

  • You want to spend days by the pool or on the beach sunbathing
  • You hate the rain
  • You prefer warmer temperatures (maybe the Key West weather in December sounds a bit too cool for you)
  • You’re on a budget (December is peak season! So it can be expensive)
Daniel Korzeniewski / Shutterstock.com

Hopefully we’ve answered all your question about Key West weather in December!

The Key West weather in December is great, and overall, December is an ideal time to visit Key West. If you’re planning to visit Miami before Key West, we recommend checking out this post about Miami weather in December too. You can expect warm days, occasional rain, and a wonderful atmosphere (because of all the festive activities happening around the areas). The Key West weather in December makes it an ideal time to visit – so enjoy!

Read more about Florida weather: Orlando weather in December: Everything you need to know!

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