December weather forecastClearwater, FL
December
Weather in December
The year wraps up in Clearwater with December, a month of cool temperatures and gentle winds. The city's sky is frequently decorated with clouds, lending an appealing wintry atmosphere. The hushed winds and high relative humidity of 77% add to December’s distinctive charm. The steady drop in temperature is a noticeable trend, with a cooler 60.6°F (15.9°C) being the low for the month. Despite being the last month of the year, December's weather stays relatively warm, providing an ideal escape from harsh winters observed elsewhere, thus marking a stunning end to Clearwater's climatic calendar.Temperature
December's average high-temperature is a pleasant 70.3°F (21.3°C), maintaining a close comparison with November's 74.3°F (23.5°C). During the month of December, the nighttime temperature in Clearwater falls to an average of 60.6°F (15.9°C).Humidity
December is the most humid month, with an average relative humidity of 77%.Rainfall
In Clearwater, in December, during 7.4 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Clearwater, during the entire year, the rain falls for 149.9 days and collects up to 16.18" (411mm) of precipitation.Ocean temperature
In December, the average ocean temperature is 68.5°F (20.3°C).Note: Swimming is not a pleasant activity for most when the water temperature is 68.5°F (20.3°C). As the water temperature drops from 69.8°F (21°C) to 59°F (15°C), breathing becomes more difficult to control.
Daylight
With an average of 10h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:05 am and sunset at 5:35 pm. On the last day of December, sunrise is at 7:22 am and sunset at 5:46 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 6.5h of sunshine.UV index
In December, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 5 in December transforms into the following instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clearwater, FL
- Average high temperature in December: 70.3°F
The warmest month (with the highest average high temperature) is August (87.6°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in December: 60.6°F
The month with the highest average low temperature is August (80.6°F).
The coldest month (with the lowest average low temperature) is January (55.9°F).
Average pressure in December
Clearwater, FL
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in December
Clearwater, FL
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are January and March (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Clearwater, FL
- Average humidity in December: 77%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Clearwater, FL
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days in December
Clearwater, FL
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is February (6.7 days).
Average sea temperature in December
Clearwater, FL
- Average sea temperature in December: 68.6°F
The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).
Average daylight in December /
Average sunshine in December
Clearwater, FL
- Average daylight in December: 10h and 24min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 6h and 30min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Clearwater, FL
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is August (5 days).
Average UV index in December
Clearwater, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Clearwater, FL
- Average cloud cover in December: 30
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in December
Clearwater, 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).
