Daylight through the yearLongest day (Jun 21): 13 h 40 min6:35 am – 8:16 pmShortest day (Dec 21): 10 h 36 min7:04 am – 5:40 pm
Sun todaySunrise –Sunset –
ClimateWarmest month August: highs 92°F, lows 80°FColdest month January: highs 76°F, lows 64°F40 in of rain a year, on about 59 dayswettest month SeptemberSnow is rare105 days above 90°F, 0 nights below freezing in a typical yearSource: NOAA 1991-2020 Climate Normals, Marathon Ap station; snow from Duck Key
Nearby landmarksSandy Pointcape · 2.5 miVaca Keyisland · under a mileRachel Keyisland · under a mileBoot Key Harborbay · 2.0 miVaca Key Bightbay · 1.0 miCocoa Plum Beachbeach · 3.8 miSource: USGS Geographic Names Information System
Parks and public landsMarathon Oceanfront Parkpark · 1.1 miCurry Hammock State Parkstate park · 4.1 mi · 1,050 acresMarathon Community Parkpark · 1.7 miBahia Honda State Parkstate park · 12.6 mi · 491 acresEverglades National Parknational park · 18.3 mi · 1,423,036 acresFlorida Keys Wildlife and Environmental Areastate conservation land · 13.2 mi · 3,962 acresSource: USGS Protected Areas Database (PAD-US)
EarthquakesNone of magnitude 3 or more within 50 miles since 1970Source: USGS Earthquake Catalog
Natural hazardsOverall risk Relatively ModerateMonroe County, FL, compared with all US countiesHigher-risk hazardsCoastal flooding Very HighHurricane Relatively HighLightning Relatively HighSource: FEMA National Risk Index (county level)
Air quality56% of days had good air in 2025206 of 365 days measured158 moderate, 1 unhealthy for sensitive groups daysMedian index 47, worst day 113main pollutant: fine particles (PM2.5)Source: US EPA Air Quality Index, nearest monitors: Miami-Dade County, FL, 71 mi away
Drinking waterFkaa - Florida Keys R.o. Plantsserves 30,000 people from ground water1 health-based violation since 2021latest Feb 2026: lead and copper, treatment technique3 monitoring or reporting violations since 2021Source: US EPA Safe Drinking Water Information System, largest system in the county
Elevation3 ft1 m above sea levelSource: USGS 3D Elevation Program
Local servicesHospitalFishermen's Community Hospital2.2 miPost officeMarathon Post Office1.2 miTown hallMarathon City Hall1.2 miPoliceMonroe County Sheriff's Office Marathon Substation2.3 miFire stationMarathon Fire Rescue Station 14under a mileSource: USGS National Structures Dataset
SchoolsWithin 2 mi1 school1 middleMiddleMarathon Middle High School1.7 miSource: USGS National Structures Dataset
Getting aroundAirportKey West International Airport EYW45 miMajor airportMiami International Airport MIA89 miUS highwayUS 1under a mileCoachFlorida Keys Marathon International AirportGreyhoundunder a mileTransit10 stops within a mileKey West Transit, Miami-Dade TransitSources: OurAirports; US Census Bureau TIGER roads; Bureau of Transportation Statistics NTAD
Distances in these cards are measured from the centre of the 33052 ZIP area.