18.12
thu
thu
Day
52°F
E 4 mph
Precip.
0%
0%
Night
46°F
SE 4 mph
Precip.
0%
0%
19.12
fri
fri
Day
52°F
S 2 mph
Precip.
0%
0%
Night
45°F
S 3 mph
Precip.
0%
0%
20.12
sat
sat
Day
50°F
SW 4 mph
Precip.
0%
0%
Night
46°F
S 6 mph
Precip.
72%
72%
21.12
sun
sun
Day
50°F
SW 7 mph
Precip.
0%
0%
Night
46°F
S 7 mph
Precip.
0%
0%
22.12
mon
mon
Day
50°F
SW 9 mph
Precip.
65%
65%
Night
46°F
NW 5 mph
Precip.
0%
0%
23.12
tue
tue
Day
50°F
N 11 mph
Precip.
0%
0%
Night
50°F
N 9 mph
Precip.
100%
100%
24.12
wed
wed
Day
54°F
NE 7 mph
Precip.
41%
41%
Night
46°F
SE 6 mph
Precip.
0%
0%
25.12
thu
thu
Day
50°F
S 6 mph
Precip.
0%
0%
Night
48°F
SW 15 mph
Precip.
82%
82%
26.12
fri
fri
Day
45°F
SW 18 mph
Precip.
70%
70%
Night
43°F
SW 16 mph
Precip.
69%
69%
27.12
sat
sat
Day
43°F
SW 16 mph
Precip.
54%
54%
Night
45°F
SW 12 mph
Precip.
0%
0%
28.12
sun
sun
Day
46°F
SW 17 mph
Precip.
100%
100%
Night
46°F
SW 17 mph
Precip.
100%
100%
29.12
mon
mon
Day
41°F
S 14 mph
Precip.
79%
79%
Night
36°F
SE 9 mph
Precip.
0%
0%
30.12
tue
tue
Day
41°F
SE 9 mph
Precip.
0%
0%
Night
34°F
NW 7 mph
Precip.
0%
0%
31.12
wed
wed
Day
36°F
S 12 mph
Precip.
0%
0%
Night
30°F
NW 7 mph
Precip.
0%
0%
sea water
temperature
temperature
| St Constantine and Helena |
monthly
weather
weather
| St Constantine and Helena |
current
weather
weather
| St Constantine and Helena |
7 days
forecast
forecast
| St Constantine and Helena |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 55.7°F. The highest and lowest sea temperatures during the month were 59.2°F and 52.3°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 46.9°F. The highest and lowest sea temperatures during the month were 48.2°F and 45.0°F.
Air temperature in St Constantine and Helena, °F
Precipitation total in St Constantine and Helena, in.
* Charts above show average data for the last 3 years.
Best time for vacation in St Constantine and Helena
St Constantine and Helena on a weather map
Places in Bulgaria:
Name
°F
24 Hours Forecast
St Constantine and Helena
Local time: 07:35
December 18, thursday
0900
45°F
E
4 mph
4 mph
1200
52°F
E
4 mph
4 mph
1500
52°F
E
2 mph
2 mph
1800
48°F
SE
4 mph
4 mph
2100
48°F
SE
4 mph
4 mph
December 19, friday
0000
46°F
SE
4 mph
4 mph
0300
46°F
SE
4 mph
4 mph
0600
45°F
SE
4 mph
4 mph
