18.12
thu
thu
Day

50°F
E 7 mph
Precip.
0%
0%
Night

46°F
SE 7 mph
Precip.
0%
0%
19.12
fri
fri
Day

50°F
S 6 mph
Precip.
0%
0%
Night

45°F
SW 8 mph
Precip.
0%
0%
20.12
sat
sat
Day

48°F
SW 8 mph
Precip.
0%
0%
Night

50°F
SW 7 mph
Precip.
73%
73%
21.12
sun
sun
Day

48°F
S 9 mph
Precip.
0%
0%
Night

46°F
S 9 mph
Precip.
0%
0%
22.12
mon
mon
Day

46°F
SW 8 mph
Precip.
60%
60%
Night

45°F
N 6 mph
Precip.
0%
0%
23.12
tue
tue
Day

50°F
N 11 mph
Precip.
56%
56%
Night

50°F
NW 11 mph
Precip.
100%
100%
24.12
wed
wed
Day

52°F
N 4 mph
Precip.
45%
45%
Night

50°F
SE 9 mph
Precip.
0%
0%
25.12
thu
thu
Day

48°F
SW 14 mph
Precip.
75%
75%
Night

46°F
SW 19 mph
Precip.
78%
78%
26.12
fri
fri
Day

43°F
SW 20 mph
Precip.
100%
100%
Night

41°F
SW 16 mph
Precip.
49%
49%
27.12
sat
sat
Day

43°F
W 16 mph
Precip.
0%
0%
Night

43°F
W 14 mph
Precip.
0%
0%
28.12
sun
sun
Day

45°F
W 17 mph
Precip.
100%
100%
Night

45°F
SW 20 mph
Precip.
100%
100%
29.12
mon
mon
Day

43°F
S 15 mph
Precip.
0%
0%
Night

36°F
SE 11 mph
Precip.
0%
0%
30.12
tue
tue
Day

39°F
SE 11 mph
Precip.
0%
0%
Night

34°F
S 12 mph
Precip.
0%
0%
31.12
wed
wed
Day

34°F
S 15 mph
Precip.
0%
0%
Night

30°F
S 9 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 52.4°F. The highest and lowest sea temperatures during the month were 55.6°F and 47.7°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 45.4°F. The highest and lowest sea temperatures during the month were 49.5°F and 42.1°F.
Air temperature in Mamaia, °F
Precipitation total in Mamaia, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Mamaia
Mamaia on a weather map
Places in Romania:
Name
°F
24 Hours Forecast
Mamaia
Local time: 10:22
December 18, thursday
1200

50°F
E
7 mph
7 mph
1500

52°F
E
5 mph
5 mph
1800

48°F
E
7 mph
7 mph
2100

46°F
E
7 mph
7 mph
December 19, friday
0000

46°F
SE
7 mph
7 mph
0300

45°F
SE
6 mph
6 mph
0600

45°F
S
6 mph
6 mph
0900

46°F
S
4 mph
4 mph


























