Marco Island weather in August 2025

Q: How hot is it in Marco Island in August?

Daytime temperatures usually reach 32°C in Marco Island in August with very high heat and humidity, falling to 24°C at night.

Q: How sunny is it in Marco Island in August?

There are normally 9 hours of bright sunshine each day in Marco Island in August - that's 71% of daylight hours.

Q: How warm is the sea around Marco Island in August?

The average sea temperature around Marco Island in August is 30°C.

Q: Does it rain in Marco Island in August?

There are usually 16 days with some rain in Marco Island in August and the average monthly rainfall is 204mm.

Q: What is the chance of a cyclone in Marco Island in August?

On average 1 day in August in Marco Island is likely to be affected by the passage of one or more tropical storms.

Expect 90°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Marco Island in August. Check more long-term weather averages for Marco Island in August before you book your next holiday to Florida in 2025/2026.

90
90°F max day temperature
9
9 hours of sunshine per day
16
16 days with some rainfall
75
75°F min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
8.0
8.0 inches of monthly rainfall
11
11 (Extreme) UV index
86
86°F sea temperature

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The August weather guide for Florida (Marco Island) 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.

Metric (°C) | Imperial (°F)

More about Florida

How hot is it in Marco Island in August?

Daytime temperatures usually reach 90°F in Marco Island in August with very high heat and humidity, falling to 75°F at night.

How sunny is it in Marco Island in August?

There are normally 9 hours of bright sunshine each day in Marco Island in August - that's 71% of daylight hours.

How warm is the sea around Marco Island in August?

The average sea temperature around Marco Island in August is 86°F.

Does it rain in Marco Island in August?

There are usually 16 days with some rain in Marco Island in August and the average monthly rainfall is 8.0 inches.

What is the chance of a hurricane in Marco Island in August?

On average 1 day in August in Marco Island is likely to be affected by the passage of one or more tropical storms.

Marco Island August sunrise & sunset times

Browse the sunrise and sunset times for Marco Island in August 2025. Select a month to view Marco Island sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Friday, 1st August 2025	05:53	19:13
Saturday, 16th August 2025	06:00	19:01
Sunday, 31st August 2025	06:07	18:47

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Florida - quick facts
Flight time^✝	9.5 hours
Time difference	UK -5 to -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Visit Florida