World Resorts Canada Niagara-on-the-Lake Weather

Niagara-on-the-Lake Sea Temperature in September

Average sea water temperature in September:
+69.6°F
Minimum sea water temperature in September: 76.5°F
Maximum sea water temperature in September: 63.9°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 67.8°F. The highest and lowest sea temperatures during the month were 70.0°F and 65.7°F.

Monthly sea water temperature in Niagara-on-the-Lake, °F

Which Canada resorts have warmest sea in September?

Place name September 2025 September 2024
Windsor 68.5°F 70.8°F
Niagara-on-the-Lake 67.8°F 70.0°F
Kingston 67.2°F 69.2°F
Montreal 66.7°F 68.5°F
Barrie 66.4°F 68.2°F
Niagara Falls 66.4°F 68.2°F
Hamilton 66.3°F 68.8°F
Summerside 66.2°F 65.5°F
Quebec 65.9°F 66.6°F
Charlottetown 65.8°F 64.5°F
Mississauga 65.6°F 68.1°F
Lunenburg 65.4°F 60.5°F
Halifax 65.2°F 60.8°F
Oshawa 65.2°F 68.3°F
Toronto 65.1°F 67.7°F
Prince Edward Island 65.0°F 64.7°F
Sydney 64.8°F 64.8°F
Winnipeg 64.2°F 66.0°F
Gimli 63.6°F 66.1°F
Les Iles-de-la-Madeleine 63.3°F 62.0°F

Best time for vacation in Niagara-on-the-Lake

Sunniest months:
September 14 days
August 12 days
July 12 days
Warmest months:
July 78.2 °F
August 77.0 °F
June 72.6 °F
Warmest sea temp:
August 74.1 °F
July 73.2 °F
September 69.6 °F
Coldest months:
January 30.0 °F
February 30.4 °F
December 37.1 °F
Rainiest months:
July 3 days
April 3 days
October 2 days
Windiest months:
February 11.9 mph
November 11.8 mph
January 11.6 mph

Niagara-on-the-Lake on a weather map

Niagara-on-the-Lake
+12°F
N 9 mph
Feels like: +3°F
Precip.: 0%
Places in Canada:
Name
°F
+41°F
+45°F
+12°F
+12°F
-8°F
+7°F
-2°F
+3°F
+12°F
-6°F
+25°F
+36°F
+21°F
+16°F
24 Hours Forecast
Niagara-on-the-Lake
Local time: 05:32
December 05, friday
0600
12°F
N
9 mph
0900
14°F
N
9 mph
1200
28°F
N
9 mph
1500
34°F
NE
10 mph
1800
30°F
N
7 mph
2100
32°F
NE
9 mph
December 06, saturday
0000
30°F
NE
12 mph
0300
30°F
NE
15 mph
Units of measurement: °C / °F