ClimateForecastDecemberJanuary >>

Marathon (FL) Climate by Month

Temperatures in Marathon experience a moderate degree of variance through the seasons. Days can be very warm, while the cooler months tend to be warm. It also has a relatively rainy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

The climate in Marathon experiences moderate temperature changes, with mild shifts between seasons. On average, daytime temperatures range from a very warm 33°C in August to a comfortable 24°C in January. Nighttime temperatures can drop, with averages reaching 18°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Marathon has a notably wet climate with abundant precipitation, recording 1138 mm of rainfall per year. The seasons in Marathon, bring significant changes in precipitation. The wettest month, September, receives heavy rainfall, with an average of 183 mm of precipitation. This rainfall is distributed across 23 rainy days. In contrast, the driest month, March, experiences much less rainfall, totaling 33 mm over 7 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Marathon enjoys sunny spells year-round. May sees up to 11.4 hours of daily sunshine, perfect for a sunny trip. November, the least sunny month, still offers a generous 7.7 hours of sun despite this cloudier time of the year.

Monthly hours of sunshine

Data from: Key West, the United States of America (73 KM, 45 Miles).

Daily hours of sunshine

Data from: Key West, the United States of America (73 KM, 45 Miles).

The best time of year to visit Marathon in the United States of America

During the months of January, February and December you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which months have the greatest rainfall in Marathon?
    Most rainfall (rainy season) is seen in August, September and October.
  • Which is the warmest month in Marathon?
    August has an average maximum temperature of 33°C and is the warmest month of the year.
  • Which is the coldest month in Marathon?
    The coldest month is January with an average maximum temperature of 24°C.
  • Which is the wettest month in Marathon?
    September tops the wettest month list with 183 mm of rainfall.
  • Which is the driest month in Marathon?
    March is the driest month with 33 mm of precipitation.
  • Which is the sunniest month in Marathon?
    May is the sunniest month with an average of 341 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Marathon (FL)

    Tue   Dec 03
    22°C | 16°C
    N 36 km/h
    clear and no rain

    clear and no rain

    Wed   Dec 04
    22°C | 14°C
    N 22 km/h
    almost clear and no rain

    almost clear and no rain

    Thu   Dec 05
    24°C | 18°C
    NE 14 km/h
    broken clouds and no rain

    broken clouds and no rain