Valletta
Malta
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Valletta, Malta

The cityscape of Valletta, Malta, viewed from the clear blue waters of the sea
The cityscape of Valletta, Malta, viewed from the clear blue waters of the sea
December, the first month of the winter, in Valletta, is still a comfortable month, with average temperature fluctuating between 16.7°C (62.1°F) and 11°C (51.8°F).

Temperature

In Valletta, the average high-temperature slightly decreases, from an agreeable 20.1°C (68.2°F) in November, to a comfortable 16.7°C (62.1°F). The average low-temperature, in Valletta, is 11°C (51.8°F).

Rainfall

December is the month with the most rainfall in Valletta, Malta. Rain falls for 13 days and accumulates 112mm (4.4") of precipitation.

Sea temperature

In December, the average sea temperature is 18.2°C (64.8°F).
Note: For most, swimming in 18.2°C (64.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 9.8h of daylight.

Sunshine

The month with the least sunshine in Valletta is December, with an average of 5.2h of sunshine.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in December in Valletta?

In Valletta, in December, the average high-temperature is 16.7°C (62.1°F), and the average low-temperature is 11°C (51.8°F).

How much does it rain in Valletta in December?

In Valletta, in December, during 13 rainfall days, 112mm (4.4") of precipitation is typically accumulated.

What is the wettest month in Valletta?

December is the month with the most rainfall in Valletta, Malta. Rain falls for 13 days and accumulates 112mm (4.4") of precipitation.

How cold is the water in December in Valletta?

In Valletta, in December, the average water temperature is 18.2°C (64.8°F). Swimming in 18.2°C (64.8°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

What is the month with the shortest days in Valletta?

The month with the shortest days is December, with an average of 9.8h of daylight.

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

The average length of the day in December in Valletta, Malta, is 9.8h.

What is the month with the least sunshine in Valletta?

With an average of 5.2h of sunshine, December has the least sunshine of the year in Valletta, Malta.

How long on average sun shines in December in Valletta?

The average sunshine in December is 5.2h.

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

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Valletta.

What is the UV index reading in December in Valletta?

In Valletta, Malta, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Valletta, Malta
  • Average high temperature in December: 16.7°C

Warmest months (with the highest average high temperature) are July and August (30.7°C).
The month with the lowest average high temperature is January (15.2°C).

  • Average low temperature in December: 11°C

The month with the highest average low temperature is August (21.8°C).
The coldest month (with the lowest average low temperature) is January (9.2°C).

Average rainfall in December - Valletta, Malta
  • Average rainfall in December: 112mm

The wettest month (with the highest rainfall) is December (112mm).
The driest month (with the lowest rainfall) is July (0mm).

Average rainfall days in December - Valletta, Malta
  • Average rainfall days in December: 13 days

Months with the highest number of rainy days are January and December (13 days).
The month with the lowest number of rainy days is July (0 days).

Average sea temperature in December - Valletta, Malta
  • Average sea temperature in December: 18.2°C

The best month for swimming (with the highest average sea temperature) is August (26.1°C).
Coldest months (with the lowest average sea temperature) are February and March (15.4°C).

Average daylight in December / Average sunshine in December - Valletta, Malta
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 5.2h

The month with most sunshine is July (Average sunshine: 12.1h).
The month with least sunshine is December (Average sunshine: 5.2h).

Average UV index in December - Valletta, Malta
  • Average UV index in December: 2

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).