19.09
sat
sat
Day
61°F
W 7 mph
Precip.
10%
10%
Night
52°F
NE 4 mph
Precip.
6%
6%
20.09
sun
sun
Day
61°F
N 6 mph
Precip.
13%
13%
Night
57°F
W 6 mph
Precip.
78%
78%
21.09
mon
mon
Day
57°F
SW 9 mph
Precip.
30%
30%
Night
54°F
SW 6 mph
Precip.
26%
26%
22.09
tue
tue
Day
54°F
SW 11 mph
Precip.
15%
15%
Night
55°F
SW 11 mph
Precip.
14%
14%
23.09
wed
wed
Day
61°F
SW 16 mph
Precip.
14%
14%
Night
57°F
SW 13 mph
Precip.
19%
19%
24.09
thu
thu
Day
57°F
SW 14 mph
Precip.
34%
34%
Night
52°F
SW 12 mph
Precip.
78%
78%
25.09
fri
fri
Day
54°F
S 8 mph
Precip.
21%
21%
Night
52°F
S 5 mph
Precip.
12%
12%
sea water
temperature
temperature
| Cambridge |
monthly
weather
weather
| Cambridge |
current
weather
weather
| Cambridge |
14 days
forecast
forecast
| Cambridge |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 66.1°F. The highest and lowest sea temperatures during the month were 68.7°F and 63.9°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 58.8°F. The highest and lowest sea temperatures during the month were 64.8°F and 54.1°F.
Air temperature in Cambridge, °F
Precipitation total in Cambridge, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Cambridge
Cambridge on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Cambridge
Local time: 06:09
September 19, saturday
0900
55°F
S
7 mph
7 mph
1200
61°F
W
7 mph
7 mph
1500
61°F
NW
10 mph
10 mph
1800
57°F
NW
8 mph
8 mph
2100
55°F
NW
6 mph
6 mph
September 20, sunday
0000
52°F
NE
4 mph
4 mph
0300
50°F
NE
4 mph
4 mph
0600
50°F
NE
2 mph
2 mph
