December weather forecast
Marco Island, FL

Sunset over the beach in Marco Island Beach, Florida, along the Gulf of Mexico
Sunset over the beach in Marco Island Beach, Florida, along the Gulf of Mexico

Weather in December

December, the first month of the winter, in Marco Island, is also a moderately hot month, with average temperature ranging between min 57.2°F (14°C) and max 75.2°F (24°C).

Temperature

January, February and December, with an average high-temperature of 75.2°F (24°C), are the coldest months.

Rainfall

In December, the rain falls for 6 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 111 rainfall days, and 51.57" (1310mm) of precipitation is accumulated.

Ocean temperature

In December, the average ocean temperature is 71.6°F (22°C).
Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 71.6°F (22°C).

Daylight

The month with the shortest days in Marco Island is December, with an average of 10.5h of daylight.

Sunshine

Months with the least sunshine in Marco Island are January, November and December, with an average of 7h of sunshine.

UV index

With an average maximum UV index of 5, December is the month with the lowest UV index in Marco Island. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: In December, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What are the coldest months in Marco Island?

The coldest months are January, February and December, with an average high-temperature of 75.2°F (24°C).

How much does it rain in Marco Island in December?

In Marco Island, during December, the rain falls for 6 days and regularly aggregates up to 1.54" (39mm) of precipitation.

How warm is the water in December in Marco Island?

In December, the average ocean temperature in Marco Island is 71.6°F (22°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 71.6°F (22°C).

What is the month with the shortest days in Marco Island?

With an average of 10.5h of daylight, December has the shortest days of the year in Marco Island, Florida.

How many hours of daylight does Marco Island have in December?

In December, the average length of the day in Marco Island is 10.5h.

What is the month with the least sunshine in Marco Island?

January, November and December, with an average of 7h of sunshine, are months with the least sunshine in Marco Island, Florida.

How long on average sun shines in December in Marco Island?

In Marco Island, the average sunshine in December is 7h.

What is the month with the lowest UV index in Marco Island?

The month with the lowest UV index is December, with an average maximum UV index of 5.

How high is the UV index in December in Marco Island?

In December, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Marco Island, FL

Average temperature in December - Marco Island, FL
  • Average high temperature in December: 75°F

The warmest months (with the highest average high temperature) are July, August and September (90°F).
Months with the lowest average high temperature are January, February and December (75°F).

  • Average low temperature in December: 57°F

The month with the highest average low temperature is August (75°F).
The coldest months (with the lowest average low temperature) are January and February (55°F).

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Average rainfall in December
Marco Island, FL

Average rainfall in December - Marco Island, FL
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is June (9.2").
The driest months (with the least rainfall) are November and December (1.5").

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Average rainfall days in December
Marco Island, FL

Average rainfall days in December - Marco Island, FL
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is August (16 days).
The month with the least rainy days is April (4 days).

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Average sea temperature in December
Marco Island, FL

Average sea temperature in December - Marco Island, FL
  • Average sea temperature in December: 71.5°F

The best month for swimming (with the highest average sea temperature) is August (87.3°F).
The coldest months (with the lowest average sea temperature) are January and February (67.2°F).

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Average daylight in December /
Average sunshine in December
Marco Island, FL

Average daylight in December / Average sunshine in December - Marco Island, FL
  • Average daylight in December: 10.5h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in December: 7h

Months with the most sunshine are April, May, June and July (Average sunshine: 10h).
Months with the least sunshine are January, November and December (Average sunshine: 7).

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Average UV index in December
Marco Island, FL

Average UV index in December - Marco Island, FL
  • Average UV index in December: 5

Months with the highest UV index are April, May, June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 5).

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