Measurements:
°C
°F
Mamaia
56°F
W 9 mph
Feels like: 54°F
Precip: 100%
World Resorts Romania Mamaia Weather

Mamaia Sea Water Temperature

Current Sea Water Temperature:
+58.4°F
Maximum Sea Water Temperature in May: 72.8°F
Minimum Sea Water Temperature in May: 51.4°F
Average water temperature in May: 62.0°F

Sea Water Temperature for the Last 10 Days:

May 16 58.4°F May 11 58.2°F
May 15 58.2°F May 10 57.6°F
May 14 58.2°F May 09 57.0°F
May 13 59.4°F May 08 57.2°F
May 12 59.0°F May 07 56.4°F

When is the Warmest Sea for Mamaia?

According to our data for the last three years for Mamaia the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Mamaia was 79.2°F. The maximum and minimum values were 73.6°F and 82.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Mamaia was 78.3°F. The maximum and minimum values were 75.4°F and 80.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mamaia was 74.5°F. The maximum and minimum values were 70.6°F and 78.4°F respectively.

Best Time to Visit Mamaia
The most sunny months:
August 27 days
July 26 days
September 22 days
The most warm months:
August 87.2 °F
July 87.0 °F
June 80.9 °F
Warmest sea temperature:
August 80.4 °F
July 79.3 °F
September 75.0 °F
The most cold months:
January 39.9 °F
February 42.8 °F
December 44.9 °F
The most rainy months:
June 3 days
May 2 days
March 2 days
The most windy months:
January 12 mph
February 12 mph
December 12 mph

Mamaia on the Weather Map

Romania Resorts:
NAME
Baile Olanesti +52
Baile Tusnad +50
Brasov +46
Bucharest +56
Cluj Napoca +56
Eforie Nord +56
Galati +58
Konstanta +56
Lasi +60
Mamaia +56
Mangalia +56
Poiana Brasov +46
Sinaia +44
Slanic Moldova +52
Sovata +58
24 Hours Weather Forecast
Mamaia
Local time: 08:42
17 may, sunday
0900 56°F
W
9 mph
1200 58°F
SW
11 mph
1500 58°F
S
11 mph
1800 58°F
S
13 mph
2100 56°F
SE
10 mph
18 may, monday
0000 54°F
SE
14 mph
0300 52°F
SE
15 mph
0600 54°F
E
19 mph