19.12
fri
fri
Day
52°F
NE 1 mph
Precip.
75%
75%
Night
50°F
S 1 mph
Precip.
69%
69%
20.12
sat
sat
Day
55°F
SW 2 mph
Precip.
0%
0%
Night
45°F
W 6 mph
Precip.
0%
0%
21.12
sun
sun
Day
54°F
SW 2 mph
Precip.
0%
0%
Night
48°F
SW 2 mph
Precip.
0%
0%
22.12
mon
mon
Day
54°F
NW 2 mph
Precip.
100%
100%
Night
50°F
W 4 mph
Precip.
100%
100%
23.12
tue
tue
Day
50°F
SW 11 mph
Precip.
0%
0%
Night
43°F
W 8 mph
Precip.
0%
0%
24.12
wed
wed
Day
46°F
W 9 mph
Precip.
0%
0%
Night
41°F
W 8 mph
Precip.
0%
0%
25.12
thu
thu
Day
46°F
SW 9 mph
Precip.
100%
100%
Night
41°F
SW 15 mph
Precip.
53%
53%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 55.8°F. The highest and lowest sea temperatures during the month were 56.5°F and 55.0°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 50.0°F. The highest and lowest sea temperatures during the month were 50.9°F and 48.7°F.
Air temperature in Trieste, °F
Precipitation total in Trieste, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Trieste
Trieste on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Trieste
Local time: 21:15
December 20, saturday
0000
50°F
S
1 mph
1 mph
0300
50°F
S
1 mph
1 mph
0600
48°F
SW
2 mph
2 mph
0900
50°F
SW
2 mph
2 mph
1200
55°F
SW
2 mph
2 mph
1500
55°F
SW
2 mph
2 mph
1800
48°F
SW
4 mph
4 mph
2100
46°F
W
5 mph
5 mph
