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 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
With the onset of December, Ostia Antica's climate undergoes a slight change as the average high-temperature moves from a refreshing 17.2°C (63°F) in November to a mild 13.6°C (56.5°F). During December, Ostia Antica's nights hold steady with an average temperature of 9.3°C (48.7°F), barely dropping from the daytime highs.Humidity
In Ostia Antica, the average relative humidity in December is 71%.Rainfall
In Ostia Antica, in December, during 13.3 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, there are 127.8 rainfall days, and 467mm (18.39") of precipitation is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Ostia Antica.On the first day of December in Ostia Antica, sunrise is at 07:18 and sunset at 16:41. On the last day of the month, sunrise is at 07:37 and sunset at 16:50 CET.
Sunshine
The average sunshine in December in Ostia Antica is 6.2h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Ostia Antica. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 3 transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Frequently asked questions
What is the usual temperature for Ostia Antica in December?
What is the average humidity in December in Ostia Antica?
How much does it rain in Ostia Antica in December?
What is the month with the shortest days in Ostia Antica?
What is the average length of the day in December in Ostia Antica?
What time are sunrise and sunset in December in Ostia Antica?
How many hours of sunshine does Ostia Antica have in December?
What are the months with the lowest UV index in Ostia Antica?
How high is the UV index in December in Ostia Antica?
Average temperature in December
Ostia Antica, Italy
- Average high temperature in December: 13.6°C
The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in December: 9.3°C
The month with the highest average low temperature is August (22.8°C).
The coldest month (with the lowest average low temperature) is February (7.8°C).
Average pressure in December
Ostia Antica, Italy
- Average pressure in December: 1018.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014.1mbar).
Average wind speed in December
Ostia Antica, Italy
- Average wind speed in December: 15.7km/h
The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is August (11.2km/h).
Average humidity in December
Ostia Antica, Italy
- Average humidity in December: 71%
The months with the highest relative humidity are January, March, April and November (73%).
The month with the lowest relative humidity is August (63%).
Average rainfall in December
Ostia Antica, Italy
- Average rainfall in December: 45mm
The wettest month (with the highest rainfall) is November (107mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in December
Ostia Antica, Italy
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (4.3 days).
Average daylight in December /
Average sunshine in December
Ostia Antica, Italy
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 6h and 1min
The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in December
Ostia Antica, Italy
- Average sunshine days in December: 15 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is November (11.7 days).
Average UV index in December
Ostia Antica, Italy
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Ostia Antica, Italy
- Average cloud cover in December: 32
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in December
Ostia Antica, 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).
Ostia Antica, Italy
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