Weather in December
Temperature
The beginning of December reveals an average high-temperature of a still moderately hot 77°F (25°C), showing minimal deviation from the previous month. In Sunny Isles Beach, in December, the average low-temperature is a comfortable 60.8°F (16°C).Rainfall
The month with the least rainfall in Sunny Isles Beach is December, when the rain falls for 7 days and typically collects 2.13" (54mm) of precipitation.Ocean temperature
In Sunny Isles Beach, in December, the average water temperature is 77°F (25°C).Note: Ideal surface water temperatures for any water activity fall between 77°F (25°C) and 84.2°F (29°C), offering maximum enjoyment for lengthened periods.
Daylight
With an average of 10h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:50 am and sunset at 5:28 pm. On the last day of December, sunrise is at 7:07 am and sunset at 5:40 pm EST.
Sunshine
January, November and December, with an average of 7h of sunshine, are months with the least sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 5 leads to the following instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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Average temperature in December
Sunny Isles Beach, FL
- Average high temperature in December: 77°F
The warmest months (with the highest average high temperature) are July and August (90°F).
The months with the lowest average high temperature are January and February (75°F).
- Average low temperature in December: 61°F
The month with the highest average low temperature is August (77°F).
The coldest month (with the lowest average low temperature) is January (59°F).
Average rainfall in December
Sunny Isles Beach, FL
- Average rainfall in December: 2.1"
The wettest month (with the highest rainfall) is June (8.5").
The driest month (with the least rainfall) is December (2.1").
Average rainfall days in December
Sunny Isles Beach, FL
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is August (18 days).
The month with the least rainy days is April (6 days).
Average sea temperature in December
Sunny Isles Beach, FL
- Average sea temperature in December: 77°F
The best month for swimming (with the highest average sea temperature) is August (86°F).
The coldest months (with the lowest average sea temperature) are January, February and March (75°F).
Average daylight in December /
Average sunshine in December
Sunny Isles Beach, FL
- Average daylight in December: 10h and 3min
The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 7h
The months with the most sunshine are April, May and July (Average sunshine: 10h).
The months with the least sunshine are January, November and December (Average sunshine: 7h).
Average UV index in December
Sunny Isles Beach, FL
- Average UV index in December: 5
The 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).
Sunny Isles Beach, Florida, USA
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