Measurements:
°C
°F
Barrie
58°F
SE 7 mph
Feels like: 58°F
Precip: 9%
World Resorts Canada Barrie Weather

Barrie Sea Water Temperature

Current Sea Water Temperature:
+72.8°F
Maximum Sea Water Temperature in July: 79.4°F
Minimum Sea Water Temperature in July: 63.2°F
Average water temperature in July: 72.5°F

Sea Water Temperature for the Last 10 Days:

July 30 72.8°F July 25 72.8°F
July 29 72.8°F July 24 70.8°F
July 28 72.6°F July 23 71.8°F
July 27 71.8°F July 22 74.0°F
July 26 72.0°F July 21 73.8°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Barrie was 75.1°F. The maximum and minimum values were 70.4°F and 77.4°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: 2025 2024 2023

The average sea surface temperature in September 2025 for Barrie was 68.3°F. The maximum and minimum values were 65.4°F and 70.2°F respectively.

Best Time to Visit Barrie
The most sunny months:
July 14 days
August 13 days
June 12 days
The most warm months:
July 79.4 °F
August 77.3 °F
June 73.4 °F
Warmest sea temperature:
August 74.6 °F
July 72.6 °F
September 69.8 °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
Barrie +58
Halifax +64
Kingston +66
Montreal +66
Ottawa +66
Prince Edward Island +64
Quebec +62
Saint John +64
St. John's +54
Sydney +58
Toronto +62
Vancouver +58
Victoria +56
Winnipeg +72
Yellowknife +54
24 Hours Weather Forecast
Barrie
Local time: 05:51
30 jul, thursday
0600 58°F
SE
7 mph
0900 70°F
SE
10 mph
1200 78°F
SE
11 mph
1500 80°F
SE
11 mph
1800 76°F
SE
11 mph
2100 64°F
SE
7 mph
31 jul, friday
0000 62°F
SE
6 mph
0300 60°F
SE
4 mph