Measurements:
°C
°F
Niagara Falls
90°F
N 3 mph
Feels like: 94°F
Precip: 1%
World Resorts USA Niagara Falls Weather

Niagara Falls Sea Water Temperature

Current Sea Water Temperature:
+69.4°F
Maximum Sea Water Temperature in August: 79.2°F
Minimum Sea Water Temperature in August: 67.0°F
Average water temperature in August: 75.1°F

Sea Water Temperature for the Last 10 Days:

August 05 69.4°F July 31 70.8°F
August 04 71.8°F July 30 73.2°F
August 03 71.2°F July 29 73.0°F
August 02 70.6°F July 28 72.6°F
August 01 70.0°F July 27 71.2°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Niagara Falls was 75.5°F. The maximum and minimum values were 70.4°F and 78.8°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: 2025 2024 2023

The average sea surface temperature in September 2025 for Niagara Falls was 68.2°F. The maximum and minimum values were 64.2°F and 71.4°F respectively.

Best Time to Visit Niagara Falls
The most sunny months:
September 14 days
July 14 days
June 12 days
The most warm months:
July 82.8 °F
August 80.3 °F
June 76.3 °F
Warmest sea temperature:
August 75.2 °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
April 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 +90
Chicago +82
Hawaii +84
Houston +106
Las Vegas +126
Los Angeles +94
Maui +80
Miami +92
Myrtle Beach +86
New York +86
San Diego +84
San Francisco +66
Santa Monica +78
Sarasota +90
Washington +92
24 Hours Weather Forecast
Niagara Falls
Local time: 17:01
05 aug, wednesday
1800 90°F
N
3 mph
2100 78°F
N
4 mph
06 aug, thursday
0000 74°F
NE
4 mph
0300 72°F
NE
5 mph
0600 70°F
NE
4 mph
0900 76°F
NE
6 mph
1200 84°F
NE
8 mph
1500 86°F
NE
7 mph