Weather in Trieste in December 2024
Average weather
Average temperature in Trieste in December
Going from a maximum of +19°C during the day to a minimum of +1°C during the night, the temperature in December averages around +12°C.
The average maximum temperature goes down 28% by the end of the month, compared with the beginning of the month, from +19°C to +14°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:
Water temperature in Trieste in December
Water in Trieste in December is Cold. It varies from +11°C to +15°C, with an average of +13°C. Note that the air temperature is lower than the water temperature, averaging around +10°C.
In December, water temperatures are average relative to the rest of the year:
Can you swim in Trieste in December?
Climate in Trieste in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +14°C | +10°C | +9°C | ||||
| Min. temperature | ||||||
| -4°C | -8°C | -12°C | ||||
| Max. temperature | ||||||
| +24°C | +19°C | +17°C | ||||
| Rainfall | ||||||
| 163 mm | 113 mm | 81 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +16°C | +13°C | +10°C | ||||
| Humidity | ||||||
| 71% | 70% | 69% | ||||
| Air pressure | ||||||
| 1016 HPa | 1018 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 7 | 9 | 9 | ||||
| Cloudy days | ||||||
| 8 | 9 | 10 | ||||
| Rainy days | ||||||
| 13 | 12 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 1 | ||||
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 163 mm to 113 mm. It feels drier, as humidity decreases from 71% to 70%. 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 7 to 9.
January brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 6 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 2 m/s to 1 m/s over the course of the month.
Rain
How was the weather last December in Trieste?
Climate Change over Years
The climate in Trieste in December has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2022 (+20°C). The driest year was 2003 with only 712 mm of rainfall, and the wettest year was 2019 with 2509 mm.
FAQ
Is December a good time to visit Trieste?
Can you sunbathe in Trieste in December?
Can you swim in Trieste in December?
Is Trieste rainy in December?
Is it sunny in Trieste in December?
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, 2023.
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.