20.12
sat
sat
Day

36°F
E 11 mph
Precip.
0%
0%
Night

32°F
NE 12 mph
Precip.
0%
0%
21.12
sun
sun
Day

45°F
E 12 mph
Precip.
0%
0%
Night

28°F
E 13 mph
Precip.
0%
0%
22.12
mon
mon
Day

30°F
SE 14 mph
Precip.
0%
0%
Night

27°F
E 6 mph
Precip.
0%
0%
23.12
tue
tue
Day

34°F
NE 11 mph
Precip.
77%
77%
Night

36°F
E 11 mph
Precip.
81%
81%
24.12
wed
wed
Day

37°F
SE 11 mph
Precip.
0%
0%
Night

30°F
SE 3 mph
Precip.
0%
0%
25.12
thu
thu
Day

37°F
NE 11 mph
Precip.
20%
20%
Night

36°F
NE 3 mph
Precip.
72%
72%
26.12
fri
fri
Day

50°F
NE 13 mph
Precip.
43%
43%
Night

41°F
E 12 mph
Precip.
0%
0%
27.12
sat
sat
Day

41°F
SE 7 mph
Precip.
0%
0%
Night

34°F
SE 6 mph
Precip.
0%
0%
28.12
sun
sun
Day

36°F
S 6 mph
Precip.
0%
0%
Night

30°F
NW 4 mph
Precip.
0%
0%
29.12
mon
mon
Day

32°F
SW 2 mph
Precip.
0%
0%
Night

32°F
SW 7 mph
Precip.
100%
100%
30.12
tue
tue
Day

32°F
SW 18 mph
Precip.
0%
0%
Night

30°F
SW 17 mph
Precip.
0%
0%
31.12
wed
wed
Day

34°F
S 14 mph
Precip.
0%
0%
Night

30°F
SE 4 mph
Precip.
0%
0%
01.01
thu
thu
Day

36°F
S 6 mph
Precip.
0%
0%
Night

32°F
E 1 mph
Precip.
0%
0%
02.01
fri
fri
Day

36°F
NE 3 mph
Precip.
0%
0%
Night

34°F
W 1 mph
Precip.
0%
0%
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 43.4°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: 19:22
December 20, saturday
2100

32°F
N
9 mph
9 mph
December 21, sunday
0000

32°F
NE
12 mph
12 mph
0300

34°F
NE
15 mph
15 mph
0600

37°F
NE
14 mph
14 mph
0900

41°F
NE
11 mph
11 mph
1200

45°F
E
12 mph
12 mph
1500

43°F
E
16 mph
16 mph
1800

37°F
E
15 mph
15 mph




























