World Resorts Canada Niagara-on-the-Lake Weather

Niagara-on-the-Lake sea water temperature

Current sea water temperature:
+37.4°F
Minimum sea water temperature in March: 40.6°F
Maximum sea water temperature in March: 33.6°F
Average sea water temperature in March: 36.7°F

Sea water temperature for the last 10 days:

March 17 37.4°F March 12 35.6°F
March 16 34.7°F March 11 37.2°F
March 15 34.7°F March 10 36.5°F
March 14 35.6°F March 9 35.8°F
March 13 37.0°F March 8 34.2°F

When is the warmest sea in Niagara-on-the-Lake?

Based on the data about daily sea water temperature for the last three years the warmest sea in Niagara-on-the-Lake was noticed in August, July and September.

Monthly Sea Temperatures in Niagara-on-the-Lake, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 77.7°F and 70.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 74.3°F. The highest and lowest sea temperatures during the month were 78.4°F and 67.1°F.

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.

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 29.2 °F
February 30.1 °F
December 35.9 °F
Rainiest months:
July 3 days
April 3 days
October 2 days
Windiest months:
January 11.9 mph
February 11.9 mph
December 11.8 mph

Niagara-on-the-Lake on a weather map

Niagara-on-the-Lake
+12°F
E 30 mph
Feels like: -6°F
Precip.: 0%
Places in Canada:
Name
°F
+48°F
+46°F
-11°F
+55°F
+34°F
+19°F
+57°F
+30°F
+10°F
+23°F
+50°F
+34°F
+46°F
+12°F
24 Hours Forecast
Niagara-on-the-Lake
Local time: 04:37
March 17, tuesday
0600
12°F
E
30 mph
0900
14°F
E
27 mph
1200
21°F
E
25 mph
1500
25°F
E
23 mph
1800
23°F
E
22 mph
2100
21°F
E
16 mph
March 18, wednesday
0000
23°F
E
12 mph
0300
21°F
E
9 mph
Units of measurement: °C / °F