World Resorts USA Niagara Falls Weather

Niagara Falls Sea Temperature in September

Average sea water temperature in September:
+69.4°F
Minimum sea water temperature in September: 75.9°F
Maximum sea water temperature in September: 62.8°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 66.4°F. The highest and lowest sea temperatures during the month were 69.3°F and 62.8°F.

Monthly sea water temperature in Niagara Falls, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Islamorada 86.7°F 87.3°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Everglades 86.2°F 87.0°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston Island 85.5°F 84.4°F
Galveston 85.5°F 83.7°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F
Tampa 84.3°F 86.0°F

Best time for vacation in Niagara Falls

Sunniest months:
September 14 days
August 12 days
July 12 days
Warmest months:
July 78.6 °F
August 77.3 °F
June 73.0 °F
Warmest sea temp:
August 72.7 °F
July 71.3 °F
September 69.4 °F
Coldest months:
January 29.8 °F
February 30.4 °F
December 36.0 °F
Rainiest months:
April 3 days
July 3 days
October 2 days
Windiest months:
November 11.3 mph
February 10.9 mph
December 10.8 mph

Niagara Falls on a weather map

Niagara Falls
+55°F
NE 18 mph
Feels like: +50°F
Precip.: 100%
Places in USA:
Name
°F
+48°F
+73°F
+73°F
+45°F
+52°F
+64°F
+64°F
+68°F
+36°F
+54°F
+46°F
+59°F
+59°F
+50°F
+25°F
24 Hours Forecast
Niagara Falls
Local time: 03:01
December 29, monday
0600
46°F
NE
28 mph
0900
36°F
NE
32 mph
1200
30°F
NE
36 mph
1500
30°F
NE
33 mph
1800
27°F
E
29 mph
2100
25°F
E
26 mph
December 30, tuesday
0000
23°F
SE
25 mph
0300
23°F
SE
23 mph
Units of measurement: °C / °F