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

Niagara Falls Sea Water Temperature

Current Sea Water Temperature:
+71.4°F
Maximum Sea Water Temperature in September: 78.8°F
Minimum Sea Water Temperature in September: 64.2°F
Average water temperature in September: 71.6°F

Sea Water Temperature for the Last 10 Days:

September 15 71.4°F September 10 72.6°F
September 14 73.6°F September 09 72.8°F
September 13 72.8°F September 08 71.4°F
September 12 72.0°F September 07 72.8°F
September 11 73.0°F September 06 72.4°F

When is the Warmest Sea for Niagara Falls?

According to our data for the last three years for Niagara Falls the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Niagara Falls was 73.9°F. The maximum and minimum values were 69.4°F and 77.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Niagara Falls was 74.0°F. The maximum and minimum values were 69.6°F and 77.0°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Niagara Falls was 73.0°F. The maximum and minimum values were 71.4°F and 75.4°F respectively.

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

Niagara Falls on the Weather Map

USA Resorts:
NAME
Boston +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +70
Sarasota +86
Washington +66
24 Hours Weather Forecast
Niagara Falls
Local time: 10:33
15 sep, tuesday
1200 72°F
N
11 mph
1500 76°F
NE
11 mph
1800 74°F
NE
7 mph
2100 74°F
NE
5 mph
16 sep, wednesday
0000 72°F
N
7 mph
0300 70°F
N
6 mph
0600 70°F
NE
3 mph
0900 68°F
S
4 mph