Current Sea Water Temperature:
+74.6°F
| Maximum Sea Water Temperature in September: | 79.4°F |
| Minimum Sea Water Temperature in September: | 65.4°F |
| Average water temperature in September: | 71.9°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| September 08 | 74.6°F | September 03 | 75.4°F |
| September 07 | 74.8°F | September 02 | 75.0°F |
| September 06 | 74.8°F | September 01 | 74.0°F |
| September 05 | 75.2°F | August 31 | 74.0°F |
| September 04 | 76.0°F | August 30 | 74.2°F |
When is the Warmest Sea for Niagara-on-the-Lake?
According to our data for the last three years for Niagara-on-the-Lake the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2026 for Niagara-on-the-Lake was 75.8°F. The maximum and minimum values were 73.6°F and 78.6°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Niagara-on-the-Lake was 75.4°F. The maximum and minimum values were 71.8°F and 77.0°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Niagara-on-the-Lake was 69.8°F. The maximum and minimum values were 67.4°F and 72.2°F respectively.
Canada Resorts:
NAME
F°
| Halifax |  |
+66 |
| Montreal |  |
+70 |
| Niagara Falls | |
+84 |
| Ottawa |  |
+72 |
| Prince Edward Island | |
+58 |
| Quebec |  |
+68 |
| Saint Andrews | |
+62 |
| Saint John | |
+68 |
| Sydney | |
+60 |
| Thunder Bay | |
+74 |
| Toronto | |
+80 |
| Vancouver | |
+74 |
| Victoria |  |
+64 |
| Winnipeg | |
+64 |
| Yellowknife | |
+60 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Niagara-on-the-Lake
Local time: 17:36
08 sep, tuesday
| 1800 |  |
80°F | SW 6 mph |
| 2100 | |
70°F | W 5 mph |
09 sep, wednesday
| 0000 |  |
68°F | N 5 mph |
| 0300 | |
74°F | NE 7 mph |
| 0600 | |
72°F | N 3 mph |
| 0900 | |
74°F | N 9 mph |
| 1200 | |
78°F | NE 15 mph |
| 1500 | |
76°F | E 11 mph |