17.05
sun
sun
Day
59°F
E 4 mph
Precip.
62%
62%
Night
50°F
S 5 mph
Precip.
0%
0%
18.05
mon
mon
Day
64°F
SW 9 mph
Precip.
0%
0%
Night
54°F
SW 6 mph
Precip.
100%
100%
19.05
tue
tue
Day
79°F
NW 10 mph
Precip.
0%
0%
Night
59°F
SW 1 mph
Precip.
100%
100%
20.05
wed
wed
Day
59°F
E 7 mph
Precip.
0%
0%
Night
48°F
E 5 mph
Precip.
0%
0%
21.05
thu
thu
Day
66°F
SE 4 mph
Precip.
0%
0%
Night
52°F
NW 2 mph
Precip.
0%
0%
22.05
fri
fri
Day
68°F
NE 4 mph
Precip.
88%
88%
Night
46°F
E 6 mph
Precip.
0%
0%
23.05
sat
sat
Day
55°F
E 12 mph
Precip.
0%
0%
Night
48°F
NE 5 mph
Precip.
0%
0%
24.05
sun
sun
Day
55°F
E 13 mph
Precip.
0%
0%
Night
46°F
SE 6 mph
Precip.
0%
0%
25.05
mon
mon
Day
61°F
E 12 mph
Precip.
0%
0%
Night
50°F
E 8 mph
Precip.
0%
0%
26.05
tue
tue
Day
55°F
E 12 mph
Precip.
70%
70%
Night
48°F
E 6 mph
Precip.
0%
0%
27.05
wed
wed
Day
54°F
E 13 mph
Precip.
0%
0%
Night
46°F
E 9 mph
Precip.
0%
0%
28.05
thu
thu
Day
55°F
SW 11 mph
Precip.
0%
0%
Night
43°F
SE 3 mph
Precip.
0%
0%
29.05
fri
fri
Day
61°F
S 4 mph
Precip.
0%
0%
Night
46°F
SE 4 mph
Precip.
0%
0%
30.05
sat
sat
Day
63°F
E 6 mph
Precip.
0%
0%
Night
52°F
E 4 mph
Precip.
0%
0%
sea water
temperature
temperature
| St Petersburg |
monthly
weather
weather
| St Petersburg |
current
weather
weather
| St Petersburg |
7 days
forecast
forecast
| St Petersburg |
Sea water temperature in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 43.3°F. The highest and lowest sea temperatures during the month were 48.6°F and 36.5°F.
Air temperature in St Petersburg, °F
Precipitation total in St Petersburg, in.
* Charts above show average data for the last 3 years.
Best time for vacation in St Petersburg
St Petersburg on a weather map
Places in Russia:
Name
°F
24 Hours Forecast
St Petersburg
Local time: 04:17
May 17, sunday
0600
54°F
N
6 mph
6 mph
0900
57°F
NE
4 mph
4 mph
1200
59°F
E
4 mph
4 mph
1500
61°F
E
6 mph
6 mph
1800
61°F
SE
7 mph
7 mph
2100
52°F
E
4 mph
4 mph
May 18, monday
0000
50°F
S
5 mph
5 mph
0300
52°F
S
4 mph
4 mph
