Marathon, FL Weather

Marathon, FL climate is hot during summer when temperatures tend to be in the 80's and mild during winter when temperatures tend to be in the 60's.

The warmest month of the year is August with an average maximum temperature of 90.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 55.90 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 16 degrees Fahrenheit, and moderate during winter with an average difference of 21 degrees Fahrenheit.

The annual average precipitation at Marathon is 47.46 Inches. Summer months tend to be wetter than winter months. The wettest month of the year is August with an average rainfall of 7.43 Inches.

Weather Data

Current Conditions

(Updated: 9:53 PM EST SAT NOV 21 2009)

Partly Cloudy, 77°F	Humidity: 77%	Dewpoint: 69°F
	Wind Speed: SE 9.2 MPH (8 KT)	Heat Index: 77°F
	Barometer: 29.99 in.	Wind Chill: 77°F

Weather Forecast

(Generated: 3:47 PM EST SAT NOV 21 2009)

		Tonight: Partly cloudy. A slight chance of showers. Lows in the mid 70s. East to southeast winds near 10 mph. Chance of rain 10 percent.
	Lo: 75°F
	Hi: 81°F	Sunday: Partly cloudy. A slight chance of showers. Highs in the lower 80s. Southeast winds near 10 mph. Chance of rain 20 percent.
	Lo: 73°F
	Hi: 81°F	Monday: Partly cloudy. A slight chance of showers. Highs in the lower 80s. Lows 70 to 75. Mainly east winds near 10 mph. Chance of rain 20 percent both periods.
	Lo: 71°F
	Hi: 81°F	Tuesday: Mostly cloudy. A chance of showers. Highs in the lower 80s. Lows in the lower 70s. Chance of rain 30 percent both periods.
	Lo: 73°F
	Hi: 80°F	Wednesday: Mostly cloudy. A chance of showers and a slight chance of thunderstorms. Highs near 80. Lows 70 to 75. Chance of rain 40 percent both periods.
	Lo: 73°F
	Hi: 81°F	Thanksgiving day: Partly cloudy. A chance of showers. Highs in the lower 80s. Chance of rain 30 percent.
	Lo: 68°F
	Hi: 75°F	Friday: Partly cloudy. A slight chance of showers. Lows 65 to 70. Highs in the mid 70s. Chance of rain 20 percent each period.
	Lo: 68°F

Moon, Sunrise and Sunset

	Moon Phase: Waxing Crescent Moon	Civil Twilight: 6:19 AM EST	Sunrise: 6:44 AM EST
		Sunset: 5:35 PM EST	Civil Twilight: 5:59 PM EST

Normal Climate

Normal Temperatures

(FLAMINGO RANGER STN Weather station, 32.04 miles from Marathon)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	77.1	77.8	80.2	83.4	86.7	88.9	90.1	90.3	89.4	86.6	82.8	78.8	84.3
Mean °F	66.5	67.4	70.3	73.6	77.7	81.2	82.1	82.2	81.5	77.9	73.4	68.7	75.2
Min °F	55.9	56.9	60.4	63.8	68.7	73.4	74.1	74.1	73.6	69.2	64.0	58.5	66.1

Normal Precipitation