December weather forecastPalermo, Italy
December
Weather in December
By the time December rolls in, Palermo's weather has transitioned to a full-fledged winter pattern. The city experiences the lowest sea temperature of 16.7°C (62.1°F) for the year and possible traces of snowfall, indicative of the winter onset. High temperatures drop to 13.9°C (57°F), reflecting the typical chill of December. Despite the shorter days and the reduced sunlight, the holiday spirit compensates for the weather's cold grip.Temperature
The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's refreshing 17.6°C (63.7°F) to a mild 13.9°C (57°F). Palermo, in December, registers an average low temperature of 9.3°C (48.7°F), showing a minute reduction from daily highs.Humidity
In Palermo, the average relative humidity in December is 77%.Rainfall
In December, the rain falls for 11.9 days. Throughout December, 31mm (1.22") of precipitation is accumulated. Throughout the year, in Palermo, there are 121.2 rainfall days, and 381mm (15") of precipitation is accumulated.Snowfall
Months with snowfall in Palermo are January and December. December is the first month it typically snows in Palermo, Italy. Throughout December, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Palermo, during the entire year, snow falls for 0.2 days and aggregates up to 3mm (0.12") of snow.Sea temperature
In Palermo, the average seawater temperature in December is 16.7°C (62.1°F).Note: Swimming in 16.7°C (62.1°F) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year in Palermo, Italy, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 07:04 and sunset at 16:47. On the last day of the month, sunrise is at 07:22 and sunset at 16:56 CET.
Sunshine
In December, the average sunshine is 6.2h.UV index
The months with the lowest UV index in Palermo are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Exercise prevention - Warding off sunburn is urged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Palermo, Italy
- Average high temperature in December: 13.9°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is February (12.5°C).
- Average low temperature in December: 9.3°C
The month with the highest average low temperature is August (22°C).
The coldest month (with the lowest average low temperature) is February (6.8°C).
Average pressure in December
Palermo, Italy
- Average pressure in December: 1019mbar
The month with the highest atmospheric pressure is December (1019mbar).
The months with the lowest atmospheric pressure are April and July (1014.3mbar).
Average wind speed in December
Palermo, Italy
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is February (13.9km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in December
Palermo, 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 (59%).
Average rainfall in December
Palermo, Italy
- Average rainfall in December: 31mm
The wettest months (with the highest rainfall) are September and October (57mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in December
Palermo, Italy
- Average rainfall days in December: 11.9 days
The month with the highest number of rainy days is January (13.6 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in December
Palermo, Italy
- Average snowfall in December: 1mm
The month with the highest snowfall is January (2mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Palermo, Italy
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and December (0.1 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
Palermo, Italy
- Average sea temperature in December: 16.7°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (14.3°C).
Average daylight in December /
Average sunshine in December
Palermo, Italy
- Average daylight in December: 9h and 36min
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: 6h and 12min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).
Average sunshine days in December
Palermo, Italy
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in December
Palermo, 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
Palermo, Italy
- Average cloud cover in December: 33
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in December
Palermo, 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).
