Current Sea Water Temperature:
+35.6°F
| Maximum Sea Water Temperature in January: | 40.4°F |
| Minimum Sea Water Temperature in January: | 33.6°F |
| Average water temperature in January: | 37.0°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| January 11 | 35.6°F | January 06 | 36.8°F |
| January 10 | 35.8°F | January 05 | 36.8°F |
| January 09 | 37.2°F | January 04 | 36.8°F |
| January 08 | 36.2°F | January 03 | 36.8°F |
| January 07 | 36.2°F | January 02 | 36.8°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 2025 for Niagara-on-the-Lake was 77.5°F. The maximum and minimum values were 72.2°F and 80.8°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Niagara-on-the-Lake was 77.0°F. The maximum and minimum values were 69.0°F and 81.6°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 |  |
+34 |
| Kingston |  |
+30 |
| Montreal |  |
+32 |
| Niagara Falls | |
+30 |
| Ottawa |  |
+26 |
| Prince Edward Island | |
+28 |
| Quebec |  |
+20 |
| Saint John | |
+30 |
| St. John's |  |
+26 |
| Sydney | |
+28 |
| Toronto | |
+28 |
| Vancouver |  |
+44 |
| Victoria |  |
+46 |
| Winnipeg | |
+4 |
| Yellowknife |  |
-16 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Niagara-on-the-Lake
Local time: 10:03
11 jan, sunday
| 1200 |  |
30°F | E 22 mph |
| 1500 | |
28°F | E 21 mph |
| 1800 | |
26°F | SE 21 mph |
| 2100 |  |
26°F | SE 20 mph |
12 jan, monday
| 0000 | |
26°F | SE 16 mph |
| 0300 | |
26°F | E 14 mph |
| 0600 | |
26°F | E 12 mph |
| 0900 | |
28°F | NE 13 mph |