Key Largo Weather in March

The climate in Key Largo during March can be summarized as warm, humid and reasonably dry.

March is in the spring in Key Largo and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 16°C (61°F) is normal.

On average March is the 5th driest month of the year in Key Largo with around 56mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.7 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Key Largo in March 2024.