25.08
tue
tue
Day
79°F
E 9 mph
Precip.
3%
3%
Night
66°F
E 6 mph
Precip.
8%
8%
26.08
wed
wed
Day
77°F
E 4 mph
Precip.
1%
1%
Night
68°F
NE 6 mph
Precip.
10%
10%
27.08
thu
thu
Day
82°F
NE 9 mph
Precip.
11%
11%
Night
70°F
N 8 mph
Precip.
26%
26%
28.08
fri
fri
Day
82°F
W 2 mph
Precip.
10%
10%
Night
68°F
E 7 mph
Precip.
29%
29%
29.08
sat
sat
Day
73°F
SE 4 mph
Precip.
5%
5%
Night
63°F
NE 8 mph
Precip.
19%
19%
30.08
sun
sun
Day
79°F
NE 6 mph
Precip.
10%
10%
Night
66°F
NE 4 mph
Precip.
56%
56%
31.08
mon
mon
Day
75°F
SW 7 mph
Precip.
6%
6%
Night
64°F
W 4 mph
Precip.
22%
22%
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 68.4°F. The highest and lowest sea temperatures during the month were 71.4°F and 66.0°F.
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: 16:56
August 25, tuesday
1800
77°F
E
7 mph
7 mph
2100
72°F
E
6 mph
6 mph
August 26, wednesday
0000
66°F
E
6 mph
6 mph
0300
63°F
E
6 mph
6 mph
0600
61°F
E
6 mph
6 mph
0900
70°F
SE
6 mph
6 mph
1200
77°F
E
4 mph
4 mph
1500
81°F
E
4 mph
4 mph
