December weather forecast
Ostuni, Italy

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Weather in December

December, the first month of the winter in Ostuni, is still a mild month, with temperature in the range of an average low of 8.9°C (48°F) and an average high of 13.4°C (56.1°F).

Temperature

A mild shift in the average high-temperature occurs in December, reducing from a comfortable 17.6°C (63.7°F) in November to a mild 13.4°C (56.1°F). Ostuni's December nights exhibit a subtle drop in temperature, averaging at a frosty 8.9°C (48°F), closely aligned with the daytime highs.

Humidity

In December, the average relative humidity in Ostuni, Italy, is 73%.

Rainfall

In Ostuni, Italy, in December, during 12.7 rainfall days, 32mm (1.26") of precipitation is typically accumulated. Throughout the year, there are 135.6 rainfall days, and 441mm (17.36") of precipitation is accumulated.

Snowfall

January, February and December are months with snowfall. December is the first month it typically snows in Ostuni. Throughout December, in the average 0.4 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, there are 1.4 snowfall days, and 11mm (0.43") of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 06:54 and sunset at 16:22. On the last day of the month, sunrise is at 07:13 and sunset at 16:32 CET.

Sunshine

In December, the average sunshine in Ostuni is 6.4h.

UV index

The months with the lowest UV index in Ostuni are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jan 29, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are the temperatures in Ostuni in December?

During December, Ostuni experiences an average high-temperature of 13.4°C (56.1°F) and a low-temperature of 8.9°C (48°F). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 33°C (91.4°F).

What is the average humidity in December in Ostuni?

The average relative humidity in December in Ostuni, Italy, is 73%.

How many days does it rain in December in Ostuni?

In December, in Ostuni, Italy, the rain falls for 12.7 days. Throughout December, 32mm (1.26") of precipitation is accumulated.

When does it start to snow in Ostuni?

December is the first month it typically snows in Ostuni. Throughout December, in the average 0.4 snowfall days, it receives 4mm (0.16") of snow.

What is the month with the shortest days in Ostuni?

The month with the shortest days in Ostuni is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Ostuni?

In Ostuni, Italy, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December in Ostuni?

On the first day of December in Ostuni, Italy, sunrise is at 06:54 and sunset at 16:22. On the last day of the month, sunrise is at 07:13 and sunset at 16:32 CET.

How long on average sun shines in December in Ostuni?

In Ostuni, the average sunshine duration in December is 6.4h.

What is the month with the lowest UV index in Ostuni?

The months with the lowest UV index in Ostuni are January and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Ostuni?

In Ostuni, the average daily maximum UV index in December is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in December
Ostuni, Italy

Average temperature in December - Ostuni, Italy
  • Average high temperature in December: 13.4°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (11.9°C).

  • Average low temperature in December: 8.9°C

The month with the highest average low temperature is August (23.6°C).
The coldest month (with the lowest average low temperature) is January (7.8°C).

Average pressure in December
Ostuni, Italy

Average pressure in December - Ostuni, Italy
  • Average pressure in December: 1017.7mbar

The month with the highest atmospheric pressure is December (1017.7mbar).
The month with the lowest atmospheric pressure is July (1012.5mbar).

Average wind speed in December
Ostuni, Italy

Average wind speed in December - Ostuni, Italy
  • Average wind speed in December: 18.4km/h

The windiest month (with the highest average wind speed) is February (20.5km/h).
The calmest months (with the lowest average wind speed) are July and August (13.1km/h).

Average humidity in December
Ostuni, Italy

Average humidity in December - Ostuni, Italy
  • Average humidity in December: 73%

The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is July (56%).

Average rainfall in December
Ostuni, Italy

Average rainfall in December - Ostuni, Italy
  • Average rainfall in December: 32mm

The wettest month (with the highest rainfall) is November (59mm).
The driest month (with the least rainfall) is August (9mm).

Average rainfall days in December
Ostuni, Italy

Average rainfall days in December - Ostuni, Italy
  • Average rainfall days in December: 12.7 days

The month with the highest number of rainy days is March (14.4 days).
The month with the least rainy days is August (5 days).

Average snowfall in December
Ostuni, Italy

Average snowfall in December - Ostuni, Italy
  • Average snowfall in December: 4mm

The month with the highest snowfall is January (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Ostuni, Italy

Average snowfall days in December - Ostuni, Italy
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Ostuni, Italy

Average daylight in December / Average sunshine in December - Ostuni, Italy
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 6h and 2min

The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).

Average sunshine days in December
Ostuni, Italy

Average sunshine days in December - Ostuni, Italy
  • Average sunshine days in December: 16.4 days

The months with the most sunshine days are July and August (23.1 days).
The month with the least sunshine days is February (12.4 days).

Average UV index in December
Ostuni, Italy

Average UV index in December - Ostuni, 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 and December (UV index 3).

Average cloud cover in December
Ostuni, Italy

Average cloud cover in December - Ostuni, Italy
  • Average cloud cover in December: 30

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
Ostuni, Italy

Average visibility in December - Ostuni, 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).

Ostuni, Italy

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