December Weather in Trieste

Last updated: March 2, 2024

The weather in Trieste, Italy, during December is characterized by an average temperature of 6°C (42°F). Highs can soar to 13°C (55°F), while lows may dip to -1°C (31°F). Typically, the humidity level in Trieste throughout December hovers around 88%.

-1°C (31°F)

Minimum temperature

6°C (42°F)

Average temperature

13°C (55°F)

Maximum temperature

88%

Humidity

Precipitation and Sunshine hours

In December, Trieste averages 166 mm (6.5 inches) of rainfall, typically over the course of 12 rainy days. The month enjoys an average of 8 hours 43 minutes of daylight, with the sun shining for approximately 6 hours 40 minutes each day. Additionally, there is a 37% probability of sunny days during this period.

166 mm (6.5 inches)

Precipitation

12 rainy days

Rainy days

6 hours 40 minutes

Sunshine hours

37%

Chance of sun

UV Index

In December, the UV Index in Trieste reaches a maximum of 2, indicating a level of Low exposure. The most intense UV radiation typically occurs between 11:00 and 13:00, during which unprotected skin may burn in as little as 45 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 1 1 2 2 1 1 1 1 0 0 0
Exposure Low
Time to burn 45 min

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