Current Sea Water Temperature:
+36.2°F
| Maximum Sea Water Temperature in March: | 39.6°F |
| Minimum Sea Water Temperature in March: | 31.8°F |
| Average water temperature in March: | 35.2°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| March 30 | 36.2°F | March 25 | 33.0°F |
| March 29 | 34.2°F | March 24 | 34.6°F |
| March 28 | 34.4°F | March 23 | 34.8°F |
| March 27 | 33.8°F | March 22 | 33.6°F |
| March 26 | 33.4°F | March 21 | 33.6°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 |  |
+28 |
| Moncton | |
+28 |
| Montreal | |
+32 |
| Niagara Falls | |
+34 |
| Ottawa | |
+30 |
| Prince Edward Island |  |
+28 |
| Quebec | |
+18 |
| Rocky Harbour |  |
+12 |
| Saint John | |
+32 |
| St. John's | |
+16 |
| Sydney | |
+26 |
| Toronto | |
+32 |
| Vancouver | |
+34 |
| Victoria | |
+32 |
| Winnipeg | |
+18 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Niagara-on-the-Lake
Local time: 04:33
30 mar, monday
| 0600 |  |
36°F | NE 13 mph |
| 0900 |  |
48°F | NE 18 mph |
| 1200 | |
56°F | NE 20 mph |
| 1500 |  |
54°F | NE 19 mph |
| 1800 |  |
56°F | NE 16 mph |
| 2100 | |
52°F | NE 11 mph |
31 mar, tuesday
| 0000 | |
50°F | NE 6 mph |
| 0300 | |
48°F | SW 2 mph |