Current Sea Water Temperature:
+66.6°F
| Maximum Sea Water Temperature in June: | 74.8°F |
| Minimum Sea Water Temperature in June: | 51.0°F |
| Average water temperature in June: | 63.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| June 17 | 66.6°F | June 12 | 65.6°F |
| June 16 | 67.6°F | June 11 | 65.4°F |
| June 15 | 69.0°F | June 10 | 61.2°F |
| June 14 | 67.0°F | June 09 | 58.8°F |
| June 13 | 67.0°F | June 08 | 59.6°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 |  |
+66 |
| Kingston | |
+62 |
| Montreal | |
+68 |
| Ottawa | |
+64 |
| Prince Edward Island |  |
+56 |
| Quebec | |
+66 |
| Saint John | |
+60 |
| Sydney | |
+60 |
| Thunder Bay | |
+56 |
| Tofino | |
+56 |
| Toronto | |
+64 |
| Vancouver | |
+58 |
| Victoria | |
+54 |
| Winnipeg | |
+64 |
| Yellowknife | |
+54 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Niagara-on-the-Lake
Local time: 09:26
17 jun, wednesday
| 1200 |  |
74°F | NE 14 mph |
| 1500 | |
80°F | NE 18 mph |
| 1800 | |
70°F | NE 12 mph |
| 2100 |  |
62°F | N 9 mph |
18 jun, thursday
| 0000 |  |
60°F | NW 16 mph |
| 0300 | |
68°F | N 27 mph |
| 0600 | |
66°F | NE 25 mph |
| 0900 |  |
66°F | NE 22 mph |