Key West Weather in March 2021: A Comprehensive Guide
If you're planning a trip to the sunny paradise of Key West in March 2021, you're in for a treat. Known for its mild winters, Key West offers a delightful climate that's perfect for outdoor activities and beach-going. Let's dive into what you can expect from the weather in Key West during March 2021.
Average Temperatures and Precipitation
March marks the beginning of spring in Key West, with average high temperatures hovering around 77°F (25°C) and average low temperatures around 68°F (20°C). These temperatures make March one of the warmest months in Key West, ideal for exploring the island's attractions without the summer heat.
As for precipitation, Key West receives an average of 2.5 inches (63.5 mm) of rain spread over 10 days in March. This means you can expect some rain showers, but they're usually brief and shouldn't disrupt your plans.

Sunshine and Humidity
Key West boasts an average of 8 hours of sunshine per day in March, with clear skies prevailing for about 70% of the month. Humidity levels are also quite comfortable, with an average relative humidity of around 70%, which feels pleasant compared to the summer months.
Water Temperature
If you're eager to dip your toes in the crystal-clear waters of the Florida Keys, March is an excellent time to do so. The average water temperature in March is a refreshing 74°F (23°C), perfect for swimming, snorkeling, or any other water activities you have in mind.
What to Pack for Your March Trip
Given the mild weather in Key West during March, packing light is the way to go. Here's a list of essentials to ensure you're prepared for your trip:

- Lightweight clothing, such as t-shirts, shorts, and sundresses
- At least one long-sleeved shirt and a light jacket for cooler evenings
- Comfortable walking shoes and sandals
- Swimwear and beach accessories (e.g., beach towel, sunscreen)
- Rain gear, such as a travel umbrella or poncho, for occasional showers
Key West Events in March 2021
March in Key West is filled with exciting events that celebrate the island's unique culture and history. Some popular events to look forward to include:
| Event | Date |
|---|---|
| Key West Half Marathon & 5K Run | Early March |
| Key West Food & Wine Festival | Late January - Early February |
| Conch Republic Independence Celebration | April 23 |
While the Conch Republic celebration takes place in April, the festivities often begin in late March, so you might catch some of the fun if you're visiting then.
In summary, March is an excellent time to visit Key West, with warm temperatures, plenty of sunshine, and a variety of exciting events to enjoy. Start planning your trip today and get ready to experience the best of what Key West has to offer in March 2021!