19.09
sat
sat
Day
57°F
SW 17 mph
Precip.
7%
7%
Night
59°F
NW 11 mph
Precip.
3%
3%
20.09
sun
sun
Day
61°F
NW 12 mph
Precip.
14%
14%
Night
61°F
NW 17 mph
Precip.
60%
60%
21.09
mon
mon
Day
61°F
SW 23 mph
Precip.
41%
41%
Night
63°F
SW 24 mph
Precip.
18%
18%
22.09
tue
tue
Day
57°F
SW 26 mph
Precip.
17%
17%
Night
59°F
W 25 mph
Precip.
14%
14%
23.09
wed
wed
Day
61°F
W 30 mph
Precip.
18%
18%
Night
61°F
SW 30 mph
Precip.
22%
22%
24.09
thu
thu
Day
61°F
SW 33 mph
Precip.
68%
68%
Night
59°F
SW 32 mph
Precip.
76%
76%
25.09
fri
fri
Day
57°F
S 25 mph
Precip.
30%
30%
Night
61°F
S 14 mph
Precip.
11%
11%
sea water
temperature
temperature
| Provincetown |
monthly
weather
weather
| Provincetown |
current
weather
weather
| Provincetown |
14 days
forecast
forecast
| Provincetown |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 66.8°F. The highest and lowest sea temperatures during the month were 70.3°F and 64.2°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 58.5°F. The highest and lowest sea temperatures during the month were 65.1°F and 54.1°F.
Air temperature in Provincetown, °F
Precipitation total in Provincetown, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Provincetown
Provincetown on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Provincetown
Local time: 05:19
September 19, saturday
0600
59°F
SW
21 mph
21 mph
0900
57°F
SW
19 mph
19 mph
1200
57°F
SW
17 mph
17 mph
1500
57°F
SW
12 mph
12 mph
1800
57°F
W
9 mph
9 mph
2100
59°F
NW
11 mph
11 mph
September 20, sunday
0000
59°F
NW
11 mph
11 mph
0300
59°F
NW
9 mph
9 mph
