12.18
thu
thu
DAY

50°F
E 7 mph
precip
0%
0%
NIGHT

46°F
SE 7 mph
precip
0%
0%
12.19
fri
fri
DAY

50°F
S 6 mph
precip
0%
0%
NIGHT

44°F
SW 8 mph
precip
0%
0%
12.20
sat
sat
DAY

48°F
SW 8 mph
precip
0%
0%
NIGHT

50°F
SW 7 mph
precip
73%
73%
12.21
sun
sun
DAY

48°F
S 9 mph
precip
0%
0%
NIGHT

46°F
S 9 mph
precip
0%
0%
12.22
mon
mon
DAY

46°F
SW 8 mph
precip
60%
60%
NIGHT

44°F
N 6 mph
precip
0%
0%
12.23
tue
tue
DAY

50°F
N 11 mph
precip
56%
56%
NIGHT

50°F
NW 11 mph
precip
100%
100%
12.24
wed
wed
DAY

52°F
N 4 mph
precip
45%
45%
NIGHT

50°F
SE 9 mph
precip
0%
0%
Weather in
December
December
| Mamaia |
14 day weather
forecast
forecast
| Mamaia |
Monthly weather
averages
averages
| Mamaia |
Sea water
temperature
temperature
| Mamaia |
Mamaia Sea Water Temperature in December, °F
The average sea surface temperature in December 2025 for Mamaia was 11.3°F. The maximum and minimum values were 8.7°F and 13.1°F respectively.
Romania Resorts:
NAME
F°
| Baile Olanesti | ![]() |
+50 |
| Baile Tusnad | ![]() |
+44 |
| Brasov | ![]() |
+44 |
| Bucharest | ![]() |
+48 |
| Cluj Napoca | ![]() |
+42 |
| Eforie Nord | ![]() |
+50 |
| Galati | ![]() |
+44 |
| Konstanta | ![]() |
+50 |
| Lasi | ![]() |
+48 |
| Mamaia | ![]() |
+50 |
| Mangalia | ![]() |
+54 |
| Poiana Brasov | ![]() |
+44 |
| Sinaia | ![]() |
+48 |
| Slanic Moldova | ![]() |
+50 |
| Sovata | ![]() |
+40 |





























