December weather forecast
Ischia, Italy

December

Weather in December

December, the closing month of the year, brings winter to the city of Ischia. With a cooler climate, shorter daylight hours, and increased rainfall, the signs of winter become quite apparent. This month sees a decrease in total rainfall from 139mm (5.47") in November to 108mm (4.25"). Amidst the festive holiday season, Ischia exudes charm under the soft winter sun, offering an enchanting end to the year.

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from 17°C (62.6°F) in November to a still refreshing 14°C (57.2°F). In December, the temperature in Ischia drops to an average of 6°C (42.8°F) at night.

Rainfall

In December, the rain falls for 15 days. Throughout December, 108mm (4.25") of precipitation is accumulated. Throughout the year, there are 133 rainfall days, and 887mm (34.92") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Ischia is 16.4°C (61.5°F).
Note: Swimming is not a pleasurable activity for most people when the water temperature is 16.4°C (61.5°F). Breathing control gets harder as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 07:09 and sunset at 16:37. On the last day of December, in Ischia, sunrise is at 07:28 and sunset at 16:46 CET.

Sunshine

The month with the least sunshine is December, with an average of 3h of sunshine.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What are December temperatures in Ischia?
Ischia in December has an average high-temperature of 14°C (57.2°F) and an average low-temperature of 6°C (42.8°F).
How many days does it rain in December in Ischia?
In Ischia, in December, it is raining for 15 days, with typically 108mm (4.25") of accumulated precipitation.
How cold is the water in December in Ischia?
In Ischia, Italy, the average seawater temperature in December is 16.4°C (61.5°F). For swimming, a surface water temperature of 16.4°C (61.5°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
What is the month with the shortest days in Ischia?
December has the shortest days of the year in Ischia, with an average of 9h and 18min of daylight.
How many hours of daylight does Ischia have in December?
In December, the average day length in Ischia, Italy, is 9h and 19min.
When are sunrise and sunset in December in Ischia?
In December, on the first day of the month, sunrise is at 07:09 and sunset at 16:37. On the last day of the month, in Ischia, sunrise is at 07:28 and sunset at 16:46 CET.
What is the month with the least sunshine in Ischia?
December has the least sunshine of the year, with an average of 3h of sunshine.
How many hours of sunshine does Ischia have in December?
The average sunshine duration in December is 3h.
What is the month with the lowest UV index in Ischia?
December is the month with the lowest UV index in Ischia, with an average maximum UV index of 1.
What is the UV index intensity in December in Ischia?
In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index
Average temperature in December - Ischia, Italy
Average temperature in December
Ischia, Italy
  • Average high temperature in December: 14°C

The warmest months (with the highest average high temperature) are July and August (29°C).
The months with the lowest average high temperature are January and February (13°C).

  • Average low temperature in December: 6°C

The months with the highest average low temperature are July and August (18°C).
The coldest month (with the lowest average low temperature) is January (4°C).

Average rainfall in December - Ischia, Italy
Average rainfall in December
Ischia, Italy
  • Average rainfall in December: 108mm

The wettest month (with the highest rainfall) is November (139mm).
The driest month (with the least rainfall) is July (20mm).

Average rainfall days in December - Ischia, Italy
Average rainfall days in December
Ischia, Italy
  • Average rainfall days in December: 15 days

The months with the highest number of rainy days are March, November and December (15 days).
The month with the least rainy days is July (4 days).

Average sea temperature in December - Ischia, Italy
Average sea temperature in December
Ischia, Italy
  • Average sea temperature in December: 16.4°C

The best month for swimming (with the highest average sea temperature) is August (25.8°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).

Average daylight in December / Average sunshine in December - Ischia, Italy
Average daylight in December /
Average sunshine in December
Ischia, 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: 3h

The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is December (Average sunshine: 3h).

Average UV index in December - Ischia, Italy
Average UV index in December
Ischia, Italy
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).

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