17.12
wed
wed
Day

63°F
NW 15 mph
Precip.
0%
0%
Night

57°F
W 7 mph
Precip.
0%
0%
18.12
thu
thu
Day

63°F
NW 5 mph
Precip.
0%
0%
Night

59°F
W 4 mph
Precip.
0%
0%
19.12
fri
fri
Day

61°F
NW 3 mph
Precip.
0%
0%
Night

55°F
SW 3 mph
Precip.
0%
0%
20.12
sat
sat
Day

59°F
NW 6 mph
Precip.
0%
0%
Night

54°F
SW 6 mph
Precip.
0%
0%
21.12
sun
sun
Day

59°F
NW 8 mph
Precip.
0%
0%
Night

55°F
W 10 mph
Precip.
100%
100%
22.12
mon
mon
Day

59°F
NW 13 mph
Precip.
100%
100%
Night

55°F
NW 14 mph
Precip.
100%
100%
23.12
tue
tue
Day

59°F
NW 22 mph
Precip.
100%
100%
Night

55°F
NW 9 mph
Precip.
100%
100%
24.12
wed
wed
Day

57°F
W 11 mph
Precip.
100%
100%
Night

55°F
W 10 mph
Precip.
100%
100%
25.12
thu
thu
Day

54°F
N 2 mph
Precip.
100%
100%
Night

52°F
NW 4 mph
Precip.
100%
100%
26.12
fri
fri
Day

55°F
N 7 mph
Precip.
100%
100%
Night

52°F
W 9 mph
Precip.
100%
100%
27.12
sat
sat
Day

57°F
NE 7 mph
Precip.
0%
0%
Night

52°F
SW 4 mph
Precip.
0%
0%
28.12
sun
sun
Day

54°F
W 9 mph
Precip.
100%
100%
Night

48°F
SW 4 mph
Precip.
100%
100%
29.12
mon
mon
Day

46°F
NW 3 mph
Precip.
0%
0%
Night

43°F
SW 5 mph
Precip.
0%
0%
30.12
tue
tue
Day

46°F
NE 3 mph
Precip.
0%
0%
Night

45°F
S 5 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 62.9°F. The highest and lowest sea temperatures during the month were 63.9°F and 62.1°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 60.3°F. The highest and lowest sea temperatures during the month were 61.9°F and 58.6°F.
Air temperature in Nettuno, °F
Precipitation total in Nettuno, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Nettuno
Nettuno on a weather map
Places in Italy:
Name
°F
24 Hours Forecast
Nettuno
Local time: 22:39
December 18, thursday
0000

57°F
W
7 mph
7 mph
0300

57°F
W
7 mph
7 mph
0600

55°F
W
6 mph
6 mph
0900

57°F
W
6 mph
6 mph
1200

63°F
NW
5 mph
5 mph
1500

63°F
NW
6 mph
6 mph
1800

59°F
NW
5 mph
5 mph
2100

57°F
W
6 mph
6 mph



























