December weather forecast and climate
Sliema, Malta

Temperature

In Sliema, the average high-temperature is 17°C (62.6°F), and the average low-temperature is 11°C (51.8°F).

Rainfall

December is the month with the most rainfall. Rain falls for 13 days and accumulates 99mm (3.9") of precipitation.

Sea temperature

In Sliema, the average seawater temperature is 18.2°C (64.8°F). For swimming, a surface water temperature of 18.2°C (64.8°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).

Daylight

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

Sunshine

January and December, with an average of 5h of sunshine, are months with the least sunshine.

UV index

Months with the lowest UV index are January and December, with an average UV index of 2.

What is the temperature in December in Sliema?

In Sliema, in December, the average high-temperature is 17°C (62.6°F), and the average low-temperature is 11°C (51.8°F).

How much does it rain in Sliema in December?

In Sliema, Malta, in December, it is raining for 13 days, with typically 99mm (3.9") of accumulated precipitation.

What is the wettest month in Sliema?

The month with the most rainfall in Sliema, Malta, is December when the rain falls for 13 days and typically aggregates up to 99mm (3.9") of precipitation.

What is the sea temperature in December in Sliema?

In Sliema, in December, the average water temperature is 18.2°C (64.8°F). 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).

What is the month with the shortest days in Sliema?

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

How many hours of daylight does Sliema have in December?

In Sliema, the average length of the day in December is 9.8h.

What is the month with the least sunshine in Sliema?

Months with the least sunshine are January and December, with an average of 5h of sunshine.

How long on average sun shines in December in Sliema?

In Sliema, the average sunshine in December is 5h.

What are the months with the lowest UV index in Sliema?

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

What is the UV index intensity in December in Sliema?

In Sliema, the average UV index in December is 2.
Average temperature in December - Sliema, Malta
  • Average high temperature in December: 17°C

Warmest months (with the highest average high temperature) are July and August (30°C).
Months with the lowest average high temperature are January and February (15°C).

  • Average low temperature in December: 11°C

The month with the highest average low temperature is August (22°C).
Coldest months (with the lowest average low temperature) are January and February (9°C).

Average rainfall in December - Sliema, Malta
  • Average rainfall in December: 99mm

The wettest month (with the highest rainfall) is December (99mm).
The driest month (with the lowest rainfall) is July (0mm).

Average rainfall days in December - Sliema, 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 - Sliema, 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 - Sliema, 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: 5h

The month with most sunshine is July (Average sunshine: 12h).
Months with least sunshine are January and December (Average sunshine: 5).

Average UV index in December - Sliema, 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).

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