Measurements:
°C
°F
Barrie
62°F
SE 6 mph
Feels like: 62°F
Precip: 22%
World Resorts Canada Barrie Weather

Barrie Sea Water Temperature

Current Sea Water Temperature:
+66.4°F
Maximum Sea Water Temperature in September: 77.6°F
Minimum Sea Water Temperature in September: 64.6°F
Average water temperature in September: 69.9°F

Sea Water Temperature for the Last 10 Days:

September 28 66.4°F September 23 68.0°F
September 27 66.0°F September 22 67.8°F
September 26 66.0°F September 21 68.6°F
September 25 67.2°F September 20 69.4°F
September 24 67.4°F September 19 69.4°F

When is the Warmest Sea for Barrie?

According to our data for the last three years for Barrie the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Barrie was 73.6°F. The maximum and minimum values were 71.4°F and 75.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Barrie was 74.0°F. The maximum and minimum values were 66.2°F and 78.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Barrie was 70.1°F. The maximum and minimum values were 66.0°F and 72.6°F respectively.

Best Time to Visit Barrie
The most sunny months:
July 14 days
August 14 days
June 12 days
The most warm months:
July 79.4 °F
August 77.4 °F
June 73.4 °F
Warmest sea temperature:
August 74.5 °F
July 72.6 °F
September 69.9 °F
The most cold months:
January 19.7 °F
February 21.0 °F
December 28.7 °F
The most rainy months:
June 3 days
August 3 days
July 2 days
The most windy months:
November 10 mph
December 10 mph
March 10 mph

Barrie on the Weather Map

Canada Resorts:
NAME
F°
Halifax +56
Moncton +52
Montreal +52
Nanaimo +56
Niagara Falls +62
Ottawa +54
Prince Edward Island +54
Quebec +50
Saint Andrews +56
St. John's +40
Sydney +52
Toronto +68
Vancouver +54
Victoria +56
Winnipeg +52
24 Hours Weather Forecast
Barrie
Local time: 20:26
28 sep, monday
2100 62°F
SE
6 mph
29 sep, tuesday
0000 62°F
NW
0 mph
0300 62°F
NW
4 mph
0600 60°F
N
2 mph
0900 60°F
N
2 mph
1200 66°F
N
5 mph
1500 76°F
N
6 mph
1800 72°F
NW
9 mph