Sliema Weather in December
With daytime temperatures of 18°C (64°F) and nighttime lows of 15°C (59°F), December in Sliema brings pleasant temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Sliema in December
This is the wettest month of the year, so having an umbrella ready is a smart choice. Typically, about 13 days will experience rainfall, with an average of 79 mm (3.1 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Sliema in December
In December, Sliema gets pleasant temperatures, with highs of 18°C (64°F). Nights cool to around 15°C (59°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 15°C (59°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Sliema in December
With about 160 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.
Wind Speed in Sliema in December
December has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.
Average water temperature in December
The water temperature is 17°C (63°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.Should you favor a climate that's both dry and comfortably warm, April, May, June, July, August, September, October and November typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malta, check out our Sliema's climate page.
Sliema Temperature in December
Min Temperature
15°C (59°F)
Max Temperature
18°C (64°F)
Water Temperature
17°C (63°F) *
Chance of Rain
45%
Precipitation
79 mm (3.1 in)
Rainy days
13 days
Humidity
79% *
Windspeed
5 m/s (10 knots) *
Sunshine
160 hours *
Percentage Sunshine
51% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Sliema typically stay consistent throughout December, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 11°C (52°F) to 13°C (55°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Sliema in December
Browse day-by-day weather records for Sliema spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sliema historical weather extremes in December
Based on 25 years of weather observations (2000-2025), these are the most extreme conditions recorded in Sliema.
- On December 1, 2014, temperatures climbed to 23°C (73°F), marking the warmest December day on record.
- Sliema experienced its chilliest December day on December 31, 2014, reaching only 7°C (45°F).
- The coldest night in December in Sliema was on December 31, 2014, with a minimum of 3°C (37°F).
Best Places in Malta in December
Find out more about the weather in Malta and which places have the best travel conditions in this month. See all of Malta in December →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Sliema in December
Comfortable temperatures call for an easy wardrobe in December. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. The water temperature sits at about 17°C (63°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Sliema in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Malta, check out our Sliema's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Sliema climate overview or explore weather in Malta.
