29.12
mon
mon
Day
45°F
NE 10 mph
Precip.
0%
0%
Night
32°F
E 15 mph
Precip.
0%
0%
30.12
tue
tue
Day
25°F
E 18 mph
Precip.
0%
0%
Night
25°F
E 16 mph
Precip.
0%
0%
31.12
wed
wed
Day
34°F
NE 12 mph
Precip.
0%
0%
Night
30°F
NE 12 mph
Precip.
0%
0%
01.01
thu
thu
Day
25°F
E 13 mph
Precip.
0%
0%
Night
23°F
NE 6 mph
Precip.
0%
0%
02.01
fri
fri
Day
25°F
E 7 mph
Precip.
0%
0%
Night
23°F
E 6 mph
Precip.
0%
0%
03.01
sat
sat
Day
25°F
NE 7 mph
Precip.
0%
0%
Night
19°F
E 14 mph
Precip.
0%
0%
04.01
sun
sun
Day
14°F
SE 13 mph
Precip.
0%
0%
Night
19°F
E 8 mph
Precip.
0%
0%
05.01
mon
mon
Day
28°F
E 9 mph
Precip.
0%
0%
Night
28°F
N 6 mph
Precip.
100%
100%
06.01
tue
tue
Day
37°F
NW 7 mph
Precip.
100%
100%
Night
34°F
E 9 mph
Precip.
0%
0%
07.01
wed
wed
Day
39°F
E 9 mph
Precip.
0%
0%
Night
32°F
SE 5 mph
Precip.
0%
0%
08.01
thu
thu
Day
36°F
SE 6 mph
Precip.
0%
0%
Night
30°F
SE 4 mph
Precip.
0%
0%
09.01
fri
fri
Day
36°F
SE 2 mph
Precip.
0%
0%
Night
32°F
SW 4 mph
Precip.
0%
0%
10.01
sat
sat
Day
36°F
W 11 mph
Precip.
100%
100%
Night
45°F
W 24 mph
Precip.
100%
100%
11.01
sun
sun
Day
39°F
NE 17 mph
Precip.
83%
83%
Night
36°F
NE 14 mph
Precip.
53%
53%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 42.8°F. The highest and lowest sea temperatures during the month were 44.4°F and 40.8°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 38.2°F. The highest and lowest sea temperatures during the month were 40.5°F and 35.2°F.
Air temperature in Boston, °F
Precipitation total in Boston, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Boston
Boston on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boston
Local time: 02:55
December 29, monday
0300
30°F
N
6 mph
6 mph
0600
34°F
N
8 mph
8 mph
0900
41°F
N
9 mph
9 mph
1200
45°F
NE
10 mph
10 mph
1500
45°F
NE
9 mph
9 mph
1800
45°F
NE
12 mph
12 mph
2100
39°F
NE
14 mph
14 mph
December 30, tuesday
0000
32°F
E
15 mph
15 mph
