Marco Island weather in May 2020

  • 30°C maximum daytime temperature in May in Marco Island30
    30°C max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in May in Marco Island8
    8 days with some rainfall
  • 20°C minimum night-time temperature in May in Marco Island20
    20°C min night temperature
  • 13 hours of daylight per day in May in Marco Island13
    13 hours of daylight per day
  • High heat & humidity in May in Marco IslandH
    High heat & humidity
  • 103 mm monthly rainfall in May in Marco Island103
    103 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in May in Marco Island11
    11 (Extreme) UV index
  • 27°C sea temperature in May in Marco Island27
    27°C sea temperature
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The May weather guide for Marco Island, Florida shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Marco Island weather in May

The average maximum daytime temperature in Marco Island in May is a hot 30°C (86°F) with high heat & humidity. The average night-time temperature is usually a comfortable 20°C (68°F). There are usually 10 hours of bright sunshine each day, which represents 77% of the 13 hours of daylight.

Expect 103mm (4.1 inches) of rainfall across the whole of May with 8 days with some rain falling. Maximum UV levels will be extreme (11 UV index) at midday when the skies are clear.

The average sea temperature in and around Marco Island in May is 27°C (81°F).

Marco Island sunrise & sunset times for May 2020

Browse the sunrise & sunset times for Marco Island in May 2020. Select a month to view Marco Island sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st May 2020 06:50 19:59
Saturday, 16th May 2020 06:40 20:07
Sunday, 31st May 2020 06:35 20:14
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Below are average maximum temperatures at popular destinations in Florida in May. Select a destination to see more weather parameters.

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