Hot
Average highs reach 32°C, so days can feel very hot.
Weather Guide
Key Largo, Florida, United States Average Monthly Weather
Weather score71Very good annual avg
Best months: April, November, March
Across the year, average daytime temperatures are around 29°C, sunshine averages 8.6h per day, and rainfall totals about 1438mm. Sea temperatures average 27°C across the year.
Annual weather
Annual averages
Temp
29°C
Rain
1438mm
Annual total
Sun
8.6h
Sea
27°C
Weather score
71
Very good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 166mm, so some wet days are possible.
Bright
Sunshine averages 9.2h per day, so bright days are a strong part of the month.
Warm sea
Sea temperatures average 30°C, so swimming is usually comfortable by monthly-average standards.
Map
Weather map
Compare Key Largo, Florida, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August32°C average high
August is one of Key Largo's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
August166mm average rain
August sits near Key Largo's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August9.2 hours average sun
August is brighter than Key Largo's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsApril to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August30°C average sea
August is one of Key Largo's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJune to September
Sea temperatures are usually near 29°C in this stretch, so swimming comfort is at its strongest.
Weather score
August66 weather score
August scores below Key Largo's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsMarch to April and November
These months have the strongest weather score in the monthly averages.
