14.09
mon
mon
Day
70°F
SE 14 mph
Precip.
1%
1%
Night
59°F
SW 6 mph
Precip.
3%
3%
15.09
tue
tue
Day
63°F
SW 6 mph
Precip.
3%
3%
Night
55°F
NE 6 mph
Precip.
23%
23%
16.09
wed
wed
Day
72°F
NE 9 mph
Precip.
3%
3%
Night
64°F
NE 7 mph
Precip.
23%
23%
17.09
thu
thu
Day
70°F
SW 6 mph
Precip.
17%
17%
Night
64°F
NE 2 mph
Precip.
43%
43%
18.09
fri
fri
Day
68°F
SW 6 mph
Precip.
2%
2%
Night
57°F
W 3 mph
Precip.
9%
9%
19.09
sat
sat
Day
64°F
W 9 mph
Precip.
3%
3%
Night
55°F
N 5 mph
Precip.
22%
22%
20.09
sun
sun
Day
66°F
N 6 mph
Precip.
12%
12%
Night
59°F
S 7 mph
Precip.
72%
72%
21.09
mon
mon
Day
57°F
SW 17 mph
Precip.
5%
5%
Night
57°F
W 11 mph
Precip.
6%
6%
22.09
tue
tue
Day
61°F
W 9 mph
Precip.
13%
13%
Night
55°F
W 7 mph
Precip.
20%
20%
23.09
wed
wed
Day
59°F
SW 16 mph
Precip.
33%
33%
Night
57°F
SW 19 mph
Precip.
64%
64%
24.09
thu
thu
Day
57°F
SW 25 mph
Precip.
37%
37%
Night
59°F
S 16 mph
Precip.
15%
15%
25.09
fri
fri
Day
64°F
SW 12 mph
Precip.
2%
2%
Night
59°F
E 7 mph
Precip.
7%
7%
26.09
sat
sat
Day
73°F
E 11 mph
Precip.
10%
10%
Night
66°F
E 5 mph
Precip.
9%
9%
27.09
sun
sun
Day
77°F
E 10 mph
Precip.
12%
12%
Night
70°F
S 11 mph
Precip.
4%
4%
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 63.7°F. The highest and lowest sea temperatures during the month were 66.7°F and 60.1°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: 16:54
September 14, monday
1800
68°F
SE
10 mph
10 mph
2100
63°F
SE
7 mph
7 mph
September 15, tuesday
0000
59°F
SW
6 mph
6 mph
0300
57°F
S
9 mph
9 mph
0600
55°F
SW
8 mph
8 mph
0900
61°F
SW
9 mph
9 mph
1200
63°F
SW
6 mph
6 mph
1500
64°F
W
7 mph
7 mph
