14.09
mon
mon
Day
64°F
SE 8 mph
Precip.
13%
13%
Night
59°F
NW 5 mph
Precip.
9%
9%
15.09
tue
tue
Day
70°F
N 11 mph
Precip.
10%
10%
Night
70°F
N 8 mph
Precip.
16%
16%
16.09
wed
wed
Day
68°F
S 6 mph
Precip.
16%
16%
Night
64°F
SW 5 mph
Precip.
10%
10%
17.09
thu
thu
Day
73°F
E 2 mph
Precip.
4%
4%
Night
68°F
SE 5 mph
Precip.
17%
17%
18.09
fri
fri
Day
70°F
SW 5 mph
Precip.
12%
12%
Night
61°F
W 5 mph
Precip.
5%
5%
19.09
sat
sat
Day
70°F
N 6 mph
Precip.
12%
12%
Night
64°F
N 9 mph
Precip.
34%
34%
20.09
sun
sun
Day
59°F
S 16 mph
Precip.
40%
40%
Night
50°F
SW 11 mph
Precip.
6%
6%
21.09
mon
mon
Day
55°F
SW 11 mph
Precip.
2%
2%
Night
50°F
W 6 mph
Precip.
5%
5%
22.09
tue
tue
Day
64°F
NW 3 mph
Precip.
2%
2%
Night
55°F
W 4 mph
Precip.
3%
3%
23.09
wed
wed
Day
63°F
SW 7 mph
Precip.
2%
2%
Night
57°F
W 2 mph
Precip.
4%
4%
24.09
thu
thu
Day
64°F
NW 8 mph
Precip.
2%
2%
Night
61°F
SE 4 mph
Precip.
10%
10%
25.09
fri
fri
Day
70°F
E 6 mph
Precip.
3%
3%
Night
63°F
NE 7 mph
Precip.
27%
27%
26.09
sat
sat
Day
72°F
E 11 mph
Precip.
2%
2%
Night
66°F
NE 9 mph
Precip.
23%
23%
27.09
sun
sun
Day
73°F
E 9 mph
Precip.
2%
2%
Night
68°F
NE 4 mph
Precip.
10%
10%
sea water
temperature
temperature
| Niagara Falls |
monthly
weather
weather
| Niagara Falls |
current
weather
weather
| Niagara Falls |
7 days
forecast
forecast
| Niagara Falls |
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.4°F. The highest and lowest sea temperatures during the month were 69.3°F and 62.8°F.
Air temperature in Niagara Falls, °F
Precipitation total in Niagara Falls, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Niagara Falls
Niagara Falls on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Niagara Falls
Local time: 17:02
September 14, monday
1800
66°F
SE
3 mph
3 mph
2100
61°F
N
3 mph
3 mph
September 15, tuesday
0000
59°F
NW
5 mph
5 mph
0300
59°F
N
4 mph
4 mph
0600
57°F
N
5 mph
5 mph
0900
59°F
N
7 mph
7 mph
1200
70°F
N
11 mph
11 mph
1500
75°F
NE
11 mph
11 mph
