Measurements:
°C
°F
CURRENT WEATHER
17:42
Niagara Falls
84°F
N 4 mph
Feels like: 82°F
Precip: 9%
World Resorts Canada Niagara Falls Weather

7 Day Weather Forecast

09.08
tue
DAY
82°F
NW 2 mph
precip
11%
NIGHT
68°F
N 5 mph
precip
19%
09.09
wed
DAY
78°F
NE 14 mph
precip
18%
NIGHT
70°F
NE 8 mph
precip
34%
09.10
thu
DAY
74°F
SE 10 mph
precip
12%
NIGHT
62°F
S 6 mph
precip
4%
09.11
fri
DAY
70°F
E 5 mph
precip
2%
NIGHT
62°F
NW 5 mph
precip
7%
09.12
sat
DAY
76°F
NE 6 mph
precip
2%
NIGHT
68°F
N 6 mph
precip
17%
09.13
sun
DAY
80°F
NE 8 mph
precip
4%
NIGHT
68°F
NE 6 mph
precip
48%
09.14
mon
DAY
72°F
SW 7 mph
precip
12%
NIGHT
66°F
W 6 mph
precip
17%

Niagara Falls Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Niagara Falls was 19.1°F. The maximum and minimum values were 17.1°F and 20.7°F respectively.

Niagara Falls on the Weather Map

Best Time to Visit Niagara Falls
The most sunny months:
July 14 days
September 13 days
June 12 days
The most warm months:
July 82.3 °F
August 80.0 °F
June 75.6 °F
Warmest sea temperature:
August 75.0 °F
July 73.8 °F
September 71.5 °F
The most cold months:
January 26.6 °F
February 27.6 °F
December 34.2 °F
The most rainy months:
July 3 days
April 3 days
October 2 days
The most windy months:
November 12 mph
December 11 mph
February 11 mph
more details