Florida Keys Weather in March
During March, Florida Keys experiences high daytime temperatures of 26°C (79°F) and cooler nights around 19°C (66°F). As the driest month of the year, rainfall is at its lowest.
Rainfall in Florida Keys in March
Take advantage of the dry conditions this month, with minimal rain expected. Rain is expected on roughly 8 days, totalling around 37 mm (1.5 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Florida Keys in March
March is a excellent month in Florida Keys, with 26°C (79°F) during the day and 19°C (66°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Florida Keys in March
Expect a lot of sunshine this month, with about 310 hours of sun. These sunny conditions add to the overall experience.If your ideal day consists of dry skies and pleasant temperatures, January, February, March, April, May, November and December typically offer the best circumstances for Florida Keys.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Florida Keys's climate page.
Florida Keys Temperature in March
Min Temperature
19°C (66°F)
Max Temperature
26°C (79°F)
Chance of Rain
27%
Precipitation
37 mm (1.5 in)
Rainy days
8 days
Humidity
74%
Sunshine
310 hours
Percentage Sunshine
83%
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in Florida Keys typically stay consistent throughout March, with daily highs averaging around 26°C (79°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 21°C (70°F).
Average temperatures in March
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather for Florida Keys in March
Browse day-by-day weather records for Florida Keys spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Florida Keys historical weather extremes in March
According to our 22 years of weather records for Florida Keys, the following extremes were recorded between 2004 and 2026.
- The warmest day in March was on March 4, 2019, with a maximum of 32°C (90°F).
- The lowest daytime temperature in March was 17°C (63°F), recorded on March 9, 2005.
- The lowest overnight temperature recorded in March was 5°C (41°F) (March 5, 2010).
Best Places in the United States of America in March
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in March →
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What to Wear in Florida Keys in March
Warm temperatures in March make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Florida Keys in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Florida Keys's climate page.
Temperature Rainfall Sunshine Humidity
See the full Florida Keys climate overview or explore weather in the United States of America.
