17.05
sun
sun
Day
57°F
W 16 mph
Precip.
100%
100%
Night
54°F
SE 19 mph
Precip.
0%
0%
18.05
mon
mon
Day
63°F
E 19 mph
Precip.
0%
0%
Night
59°F
E 13 mph
Precip.
0%
0%
19.05
tue
tue
Day
68°F
SW 4 mph
Precip.
0%
0%
Night
63°F
E 8 mph
Precip.
61%
61%
20.05
wed
wed
Day
70°F
S 17 mph
Precip.
100%
100%
Night
64°F
SE 16 mph
Precip.
100%
100%
21.05
thu
thu
Day
68°F
S 14 mph
Precip.
100%
100%
Night
63°F
SE 16 mph
Precip.
100%
100%
22.05
fri
fri
Day
63°F
S 18 mph
Precip.
100%
100%
Night
63°F
S 16 mph
Precip.
100%
100%
23.05
sat
sat
Day
61°F
S 23 mph
Precip.
100%
100%
Night
61°F
S 14 mph
Precip.
0%
0%
24.05
sun
sun
Day
68°F
S 7 mph
Precip.
0%
0%
Night
63°F
NE 11 mph
Precip.
0%
0%
25.05
mon
mon
Day
61°F
S 14 mph
Precip.
100%
100%
Night
57°F
S 12 mph
Precip.
0%
0%
26.05
tue
tue
Day
64°F
E 14 mph
Precip.
100%
100%
Night
57°F
E 9 mph
Precip.
0%
0%
27.05
wed
wed
Day
57°F
SW 6 mph
Precip.
100%
100%
Night
57°F
NW 5 mph
Precip.
0%
0%
28.05
thu
thu
Day
64°F
NW 11 mph
Precip.
0%
0%
Night
59°F
NW 8 mph
Precip.
0%
0%
29.05
fri
fri
Day
72°F
N 11 mph
Precip.
0%
0%
Night
61°F
NW 5 mph
Precip.
0%
0%
30.05
sat
sat
Day
66°F
SW 10 mph
Precip.
0%
0%
Night
61°F
N 7 mph
Precip.
0%
0%
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 56.1°F. The highest and lowest sea temperatures during the month were 58.5°F and 53.6°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: 19:20
May 17, sunday
2100
57°F
S
11 mph
11 mph
May 18, monday
0000
54°F
SE
19 mph
19 mph
0300
54°F
SE
20 mph
20 mph
0600
52°F
E
18 mph
18 mph
0900
55°F
E
20 mph
20 mph
1200
63°F
E
19 mph
19 mph
1500
68°F
E
14 mph
14 mph
1800
68°F
E
12 mph
12 mph
