18.12
thu
thu
Day

57°F
W 2 mph
Precip.
0%
0%
Night

55°F
S 9 mph
Precip.
0%
0%
19.12
fri
fri
Day

59°F
W 7 mph
Precip.
62%
62%
Night

57°F
W 1 mph
Precip.
0%
0%
20.12
sat
sat
Day

57°F
SW 2 mph
Precip.
63%
63%
Night

57°F
W 9 mph
Precip.
65%
65%
21.12
sun
sun
Day

59°F
W 14 mph
Precip.
0%
0%
Night

54°F
SW 10 mph
Precip.
100%
100%
22.12
mon
mon
Day

55°F
W 12 mph
Precip.
100%
100%
Night

52°F
SW 7 mph
Precip.
20%
20%
23.12
tue
tue
Day

55°F
E 6 mph
Precip.
43%
43%
Night

52°F
SE 4 mph
Precip.
100%
100%
24.12
wed
wed
Day

54°F
NW 2 mph
Precip.
0%
0%
Night

52°F
SW 14 mph
Precip.
100%
100%
25.12
thu
thu
Day

52°F
SW 12 mph
Precip.
100%
100%
Night

52°F
NE 10 mph
Precip.
100%
100%
26.12
fri
fri
Day

55°F
SW 7 mph
Precip.
20%
20%
Night

52°F
S 15 mph
Precip.
100%
100%
27.12
sat
sat
Day

57°F
S 8 mph
Precip.
0%
0%
Night

52°F
SE 4 mph
Precip.
100%
100%
28.12
sun
sun
Day

55°F
NE 4 mph
Precip.
21%
21%
Night

54°F
N 4 mph
Precip.
0%
0%
29.12
mon
mon
Day

54°F
W 2 mph
Precip.
24%
24%
Night

52°F
W 4 mph
Precip.
100%
100%
30.12
tue
tue
Day

52°F
SW 3 mph
Precip.
28%
28%
Night

50°F
NE 9 mph
Precip.
0%
0%
31.12
wed
wed
Day

52°F
W 6 mph
Precip.
0%
0%
Night

46°F
NE 11 mph
Precip.
0%
0%
sea water
temperature
temperature
| Monte Carlo |
monthly
weather
weather
| Monte Carlo |
current
weather
weather
| Monte Carlo |
7 days
forecast
forecast
| Monte Carlo |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 62.3°F. The highest and lowest sea temperatures during the month were 63.0°F and 61.9°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 58.5°F. The highest and lowest sea temperatures during the month were 59.7°F and 57.6°F.
Air temperature in Monte Carlo, °F
Precipitation total in Monte Carlo, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Monte Carlo
Monte Carlo on a weather map
24 Hours Forecast
Monte Carlo
Local time: 06:33
December 18, thursday
0900

55°F
SW
4 mph
4 mph
1200

57°F
W
2 mph
2 mph
1500

59°F
W
6 mph
6 mph
1800

57°F
SW
7 mph
7 mph
2100

55°F
S
7 mph
7 mph
December 19, friday
0000

55°F
S
9 mph
9 mph
0300

55°F
S
8 mph
8 mph
0600

57°F
S
7 mph
7 mph

























