Measurements:
°C
°F
Niagara Falls
66°F
SW 6 mph
Feels like: 66°F
Precip: 0%
World Resorts USA Niagara Falls Weather

Niagara Falls Sea Water Temperature

Current Sea Water Temperature:
+44.4°F
Maximum Sea Water Temperature in April: 47.6°F
Minimum Sea Water Temperature in April: 31.4°F
Average water temperature in April: 37.6°F

Sea Water Temperature for the Last 10 Days:

April 23 44.4°F April 18 40.6°F
April 22 40.4°F April 17 41.0°F
April 21 41.4°F April 16 37.8°F
April 20 44.8°F April 15 38.0°F
April 19 45.4°F April 14 38.2°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Niagara Falls was 75.0°F. The maximum and minimum values were 67.2°F and 79.2°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
August 12 days
July 12 days
The most warm months:
July 81.8 °F
August 80.3 °F
June 75.6 °F
Warmest sea temperature:
August 75.2 °F
July 73.7 °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:
April 3 days
July 3 days
October 2 days
The most windy months:
November 11 mph
December 11 mph
January 11 mph

Niagara Falls on the Weather Map

USA Resorts:
NAME
Chicago +70
Hawaii +76
Honolulu +76
Houston +82
Las Vegas +68
Los Angeles +64
Maui +70
Miami +82
Miami Beach +82
New York +76
San Diego +66
San Francisco +58
Sarasota +88
Tampa +86
Washington +82
24 Hours Weather Forecast
Niagara Falls
Local time: 12:10
23 apr, thursday
1500 72°F
SW
6 mph
1800 64°F
SW
7 mph
2100 56°F
W
6 mph
24 apr, friday
0000 50°F
W
8 mph
0300 46°F
W
9 mph
0600 44°F
W
12 mph
0900 44°F
W
12 mph
1200 48°F
W
14 mph