Current sea water temperature:
+47.7°F
| Minimum sea water temperature in December: | 55.6°F |
| Maximum sea water temperature in December: | 42.1°F |
| Average sea water temperature in December: | 48.8°F |
| more information | |
14 days
forecast
forecast
| Mamaia |
monthly
weather
weather
| Mamaia |
Sea water temperature for the last 10 days:
| December 21 | 47.7°F | December 16 | 49.3°F |
| December 20 | 47.8°F | December 15 | 49.5°F |
| December 19 | 48.6°F | December 14 | 50.2°F |
| December 18 | 47.7°F | December 13 | 50.7°F |
| December 17 | 48.2°F | December 12 | 50.9°F |
Monthly sea water temperature, °F
When is the warmest sea in Mamaia?
Based on the data about daily sea water temperature for the last three years the warmest sea in Mamaia was noticed in August, July and September.
Monthly Sea Temperatures in Mamaia, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 76.3°F. The highest and lowest sea temperatures during the month were 79.3°F and 71.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 75.4°F. The highest and lowest sea temperatures during the month were 77.4°F and 72.9°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 72.1°F. The highest and lowest sea temperatures during the month were 75.6°F and 68.5°F.
current
weather
weather
| Mamaia |
weather in
December
December
| Mamaia |
Best time for vacation in Mamaia
Mamaia on a weather map
Places in Romania:
Name
°F
24 Hours Forecast
Mamaia
Local time: 04:07
December 22, monday
0600
45°F
S
6 mph
6 mph
0900
45°F
S
5 mph
5 mph
1200
48°F
SW
5 mph
5 mph
1500
48°F
SW
6 mph
6 mph
1800
45°F
SW
7 mph
7 mph
2100
45°F
SW
7 mph
7 mph
December 23, tuesday
0000
45°F
SW
6 mph
6 mph
0300
45°F
SW
6 mph
6 mph
