December weather forecastGulf Stream, FL
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Gulf Stream, Florida, with an average temperature varying between 75°F (23.9°C) and 68.2°F (20.1°C).Temperature
Welcoming December, Gulf Stream notes an average high-temperature of a still warm 75°F (23.9°C), nearly consistent with November's 77.9°F (25.5°C). Gulf Stream's nighttime average temperature in December drops marginally from the daytime highs, settling at a pleasant 68.2°F (20.1°C).Humidity
June, September and December, with an average relative humidity of 75%, are the most humid months.Rainfall
In December, the rain falls for 15.6 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Gulf Stream, Florida, there are 229 rainfall days, and 46.46" (1180mm) of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 30min of daylight.On the first day of December, sunrise is at 6:51 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:38 pm EST.
Sunshine
January and December, with an average of 6.1h of sunshine, are months with the least sunshine.UV index
The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 6 as the daily maximum UV index converts into the following advice:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Gulf Stream, FL
- Average high temperature in December: 75°F
The warmest month (with the highest average high temperature) is August (86.9°F).
The month with the lowest average high temperature is January (72.5°F).
- Average low temperature in December: 68.2°F
The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (64°F).
Average pressure in December
Gulf Stream, FL
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in December
Gulf Stream, FL
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is March (11.5mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Gulf Stream, FL
- Average humidity in December: 75%
The months with the highest relative humidity are June, September and December (75%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Gulf Stream, FL
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Gulf Stream, FL
- Average rainfall days in December: 15.6 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (12.6 days).
Average daylight in December /
Average sunshine in December
Gulf Stream, FL
- Average daylight in December: 10h and 30min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in December: 6h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 6min).
Average sunshine days in December
Gulf Stream, FL
- Average sunshine days in December: 11 days
The month with the most sunshine days is March (14.2 days).
The month with the least sunshine days is September (2.5 days).
Average UV index in December
Gulf Stream, FL
- Average UV index in December: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January and February (UV index 5).
Average cloud cover in December
Gulf Stream, FL
- Average cloud cover in December: 36
The months with the most cloud cover are January, October, November and December (Cloud cover 36).
The months with the least cloud cover are April, May and July (Cloud cover 29).
Average visibility in December
Gulf Stream, FL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
