Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The transition to December results in a modest reduction in average high-temperature, moving from a refreshing 18.2°C (64.8°F) in November to a mild 14.5°C (58.1°F). Castellammare del Golfo records a slight downturn to an average a frosty 9.6°C (49.3°F) during the nights of December.Humidity
In December, the average relative humidity in Castellammare del Golfo is 77%.Rainfall
In Castellammare del Golfo, in December, during 14.7 rainfall days, 45mm (1.77") of precipitation is typically accumulated. In Castellammare del Golfo, during the entire year, the rain falls for 130.5 days and collects up to 433mm (17.05") of precipitation.Snowfall
January and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, there are 0.4 snowfall days, and 4mm (0.16") of snow is accumulated.Sea temperature
In Castellammare del Golfo, the average seawater temperature in December is 16.8°C (62.2°F).Note: Most people find swimming in 16.8°C (62.2°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).
Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 07:06 and sunset at 16:49. On the last day of December, in Castellammare del Golfo, Italy, sunrise is at 07:24 and sunset at 16:58 CET.
Sunshine
In Castellammare del Golfo, the average sunshine in December is 5.9h.UV index
The months with the lowest UV index in Castellammare del Golfo are January, February and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 3 in December translates into the following instructions:
Exercise prevention - Warding off sunburn is urged. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the usual temperature for Castellammare del Golfo in December?
What is the average humidity in December in Castellammare del Golfo?
How many days does it rain in December in Castellammare del Golfo?
When does it start to snow in Castellammare del Golfo?
What is the sea water temperature in December in Castellammare del Golfo?
What is the month with the shortest days in Castellammare del Golfo?
What is the average length of the day in December in Castellammare del Golfo?
What time are sunrise and sunset in December in Castellammare del Golfo?
How long on average sun shines in December in Castellammare del Golfo?
When is the lowest UV index in Castellammare del Golfo?
What is the UV index reading in December in Castellammare del Golfo?
Average temperature in December
Castellammare del Golfo, Italy
- Average high temperature in December: 14.5°C
The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is February (13°C).
- Average low temperature in December: 9.6°C
The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).
Average pressure in December
Castellammare del Golfo, Italy
- Average pressure in December: 1019mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in December
Castellammare del Golfo, Italy
- Average wind speed in December: 15km/h
The windiest month (with the highest average wind speed) is February (15.8km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Castellammare del Golfo, Italy
- Average humidity in December: 77%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is July (57%).
Average rainfall in December
Castellammare del Golfo, Italy
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in December
Castellammare del Golfo, Italy
- Average rainfall days in December: 14.7 days
The month with the highest number of rainy days is January (17 days).
The month with the least rainy days is July (1.8 days).
Average snowfall in December
Castellammare del Golfo, Italy
- Average snowfall in December: 1mm
The month with the highest snowfall is January (3mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Castellammare del Golfo, Italy
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in December
Castellammare del Golfo, Italy
- Average sea temperature in December: 16.8°C
The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest month (with the lowest average sea temperature) is February (14.3°C).
Average daylight in December /
Average sunshine in December
Castellammare del Golfo, Italy
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Castellammare del Golfo, Italy
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is July (29 days).
The month with the least sunshine days is February (11 days).
Average UV index in December
Castellammare del Golfo, Italy
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Castellammare del Golfo, Italy
- Average cloud cover in December: 36
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in December
Castellammare del Golfo, Italy
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Castellammare del Golfo, Italy
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