Measurements:
°C
°F
Barrie
34°F
SE 21 mph
Feels like: 20°F
Precip: 0%
World Resorts Canada Barrie Weather

Barrie Sea Water Temperature

Current Sea Water Temperature:
+32.6°F
Maximum Sea Water Temperature in January: 34.8°F
Minimum Sea Water Temperature in January: 30.0°F
Average water temperature in January: 31.9°F

Sea Water Temperature for the Last 10 Days:

January 09 32.6°F January 04 33.4°F
January 08 32.8°F January 03 33.2°F
January 07 33.0°F January 02 33.0°F
January 06 33.2°F January 01 33.0°F
January 05 33.4°F December 31 32.8°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: 2025 2024 2023

The average sea surface temperature in July 2025 for Barrie was 73.0°F. The maximum and minimum values were 65.4°F and 76.8°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:
August 13 days
September 12 days
July 12 days
The most warm months:
July 78.4 °F
August 77.3 °F
June 72.6 °F
Warmest sea temperature:
August 74.6 °F
July 72.3 °F
September 69.8 °F
The most cold months:
January 20.2 °F
February 21.1 °F
December 28.7 °F
The most rainy months:
June 3 days
July 3 days
August 3 days
The most windy months:
November 10 mph
December 10 mph
March 10 mph

Barrie on the Weather Map

Canada Resorts:
NAME
Halifax +34
Kingston +36
Montreal +44
Niagara Falls +40
Ottawa +38
Prince Edward Island +30
Quebec +30
Saint John +40
St. John's +24
Sydney +30
Toronto +36
Vancouver +48
Victoria +46
Winnipeg +8
Yellowknife -32
24 Hours Weather Forecast
Barrie
Local time: 21:35
10 jan, saturday
0000 26°F
E
10 mph
0300 22°F
SE
5 mph
0600 14°F
W
4 mph
0900 22°F
W
6 mph
1200 26°F
NW
11 mph
1500 28°F
NW
14 mph
1800 30°F
NW
12 mph
2100 28°F
NW
12 mph