Sistiana
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Sistiana Weather in December

December in Sistiana averages 9°C (48°F) during the day and 4°C (39°F) at night. Quite a bit of rainfall is typical this month, with around 133 mm (5.2 in) on average. An umbrella is a good idea.

Rainfall in Sistiana in December

Climate statistics over the past 30 years suggest around 12 days of rain, with 133 mm (5.2 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Sistiana in December

December in Sistiana brings typical temperatures with highs around 9°C (48°F) and lows of 4°C (39°F). December marks the winter season. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Sistiana in December

The area sees fewer sunny days, with a projection of about 84 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.

Average water temperature in December

With water temperatures around 11°C (52°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Sistiana.

Sistiana Temperature in December

Min Temperature
4°C (39°F)
Max Temperature
9°C (48°F)
Water Temperature
11°C (52°F) *
Chance of Rain
40%
Precipitation
133 mm (5.2 in)
Rainy days
12 days
Humidity
67% *
Sunshine
84 hours *
Percentage Sunshine
31% *
* Data from: Triest, Italy (15 KM, 9 Miles).

Sistiana Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Sistiana - and find the best time to visit.

Best Places in Italy in December

Find out more about the weather in Italy and which places have the best travel conditions in this month. See all of Italy in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Sistiana in December

Dress warmly and in layers for your trip to Sistiana in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 11°C (52°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. With limited sunshine expected, sunglasses aren't a priority for packing.

What To Do in Sistiana in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    4/10
  • Cycling
    4/10
  • Walking
    4/10
  • Camping
    3/10
  • Outdoor sports
    4/10

Sistiana 3-Day Forecast

More climate data for Sistiana

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.