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Trieste in December: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Trieste in December will be like? Take a look at our weather guide for Trieste, based on historical data.
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December

Weather in Trieste in December 2024

Good Weather
Cool
☁️
Cloudy
Are you considering a trip to Trieste in December? Well, the weather is usually on your side with an average maximum temperature of +10°C and about 10 sunny days. Just keep in mind that there may be some rain, with an average of 8 rainy days and 112 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+10°C
Avg. max. temperature
-8°C
Min.
+18°C
Max.
112 mm
Total precipitation
69%
Avg. humidity
2 m/s
Avg. wind
10 ☀️
Sunny Days
13 ⛅️
Cloudy
8 🌦
Rainy
Our opinion: Trieste has good weather in December.

Average temperature in Trieste in December

Here are the expected maximum, average and minimum temperatures in Trieste for December based on the historical data.
Last Year
Historical Data

Going from a maximum of +14°C during the day to a minimum of 0°C during the night, the temperature in December averages around +10°C.

The average maximum temperature goes up 14% by the end of the month, compared with the beginning of the month, from +10°C to +12°C.

Is Trieste warm or cold in December?

Trieste is typically cool in December.

Maximum temperatures go down compared to the previous month from +14°C to +10°C. The minimum temperature also goes down from +8°C to +4°C.

Pack a sweater and a jacket as there will be cooler temperatures.

December is one of the coolest months in Trieste, here is the comparison with other months:

Climate in Trieste in December

Trieste weather looks like this, on average, in December and the surrounding months.
NovemberDecemberJanuary
Avg. temperature
+14°C+10°C+9°C
Min. temperature
-4°C-8°C-12°C
Max. temperature
+24°C+18°C+17°C
Rainfall
162 mm112 mm80 mm
Wind
2 m/s2 m/s1 m/s
Humidity
70%69%69%
Air pressure
1016 HPa1017 HPa1018 HPa
Sunny days
8109
Cloudy days
121316
Rainy days
1086
Snowy days
000

December often has better weather than November. It’s getting colder in December. From +14°C in the day, the average maximum temperature lowers to +10°C. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 162 mm to 112 mm. It feels drier, as humidity decreases from 70% to 69%. The average wind speed doesn’t change much during December, staying around 2 m/s. The good news is there are likely to be more sunny days in December, from 8 to 10.

January brings much the same weather, it remains good.

Wind

Wind speed in Trieste in December based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Trieste is gradually decreasing during December, going from 7 m/s to 0 m/s over the course of the month.

Rain

Amount of rainfall in mm during December in Trieste based on historical data.
Last Year
Historical Data
Typically, there is a 65% chance of rain on an average day in December, with total rainfall of approximately 180 mm. The maximum amount of rainfall per day is around 41 mm, which is moderate rain. December is a pretty wet month with over 20 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Trieste wettest month is November, where a typical day has a 33% chance of precipitation and 162 mm of rainfall per day. July, on the other hand, is the driest month with a mere 19% chance of precipitation and 71 mm of rainfall per day.

How was the weather last December in Trieste?

This is the weather in Trieste in December 2023:
1 December
☁️
+10°C
2 December
☁️
+9°C
3 December
🌧️
+10°C
4 December
🌧️
+11°C
5 December
🌧️
+14°C
6 December
☀️
+13°C
7 December
☀️
+12°C
8 December
☁️
+12°C
9 December
🌧️
+13°C
10 December
🌧️
+11°C
11 December
🌧️
+8°C
12 December
☀️
+7°C
13 December
☁️
+4°C
14 December
☁️
+8°C
15 December
☁️
+12°C
16 December
🌧️
+13°C
17 December
🌧️
+11°C
18 December
☀️
+8°C
19 December
☀️
+9°C
20 December
☁️
+8°C
21 December
🌧️
+9°C
22 December
☁️
+9°C
23 December
☁️
+10°C
24 December
☁️
+11°C
25 December
☁️
+11°C
26 December
🌧️
+11°C
27 December
🌫️
+11°C
28 December
☁️
+12°C
29 December
🌧️
+11°C
30 December
🌧️
+13°C
31 December
☁️
+12°C
In December 2023 Trieste had 5 sunny days, 13 cloudy days, and 12 rainy days. The average maximum temperature was +10°C, with an absolute maximum of +14°C and a minimum of +4°C. The average humidity was 82%, with a maximum of 100% and a minimum of 39%. The average wind speed was 2 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in December?

Climate Change over Years

This is how Trieste climate have been changing during last 43 years period.

The climate in Trieste in December has not changed much over the last 43 years.

The average temperature was the lowest in 2001 (+8°C) and the highest in 2013 (+14°C). The driest year was 2015 with only 0 mm of rainfall, and the wettest year was 2020 with 331 mm.

FAQ

Frequently asked questions about the weather in Trieste in December:

Is December a good time to visit Trieste?

December is a really good time to go to Trieste. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Trieste.

Can you sunbathe in Trieste in December?

Not really, December is not the best time to sunbathe, unless you visit a local solarium.

Is Trieste rainy in December?

Trieste is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Trieste in December?

The amount of sunny days in Trieste during December varies; prepare for a mix of clouds and sun.

Other cities in Italy

Check out the weather for other cities in Italy.

Monthly weather in Trieste

Source of the data

For this page, we’ve looked at the typical weather in Trieste, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.