Measurements:
°C
°F
CURRENT WEATHER
10:30
Niagara Falls
60°F
N 7 mph
Feels like: 60°F
Precip: 14%
World Resorts USA Niagara Falls Weather

7 Day Weather Forecast

09.15
tue
DAY
72°F
N 11 mph
precip
10%
NIGHT
72°F
N 7 mph
precip
6%
09.16
wed
DAY
68°F
SW 6 mph
precip
24%
NIGHT
70°F
SW 4 mph
precip
18%
09.17
thu
DAY
64°F
S 7 mph
precip
49%
NIGHT
64°F
W 1 mph
precip
23%
09.18
fri
DAY
74°F
SW 2 mph
precip
11%
NIGHT
60°F
W 6 mph
precip
4%
09.19
sat
DAY
72°F
W 5 mph
precip
10%
NIGHT
76°F
E 9 mph
precip
72%
09.20
sun
DAY
62°F
SW 8 mph
precip
29%
NIGHT
62°F
SW 7 mph
precip
26%
09.21
mon
DAY
58°F
SW 10 mph
precip
62%
NIGHT
56°F
W 9 mph
precip
31%

Niagara Falls Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Niagara Falls was 21.5°F. The maximum and minimum values were 20.7°F and 22.7°F respectively.

Niagara Falls on the Weather Map

Best Time to Visit Niagara Falls
The most sunny months:
September 14 days
July 14 days
August 13 days
The most warm months:
July 82.8 °F
August 80.3 °F
June 76.3 °F
Warmest sea temperature:
August 75.0 °F
July 73.8 °F
September 71.5 °F
The most cold months:
January 26.7 °F
February 27.8 °F
December 34.4 °F
The most rainy months:
July 3 days
October 2 days
August 2 days
The most windy months:
November 11 mph
December 11 mph
January 11 mph
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