Measurements:
°C
°F
CURRENT WEATHER
16:53
Barrie
74°F
NW 6 mph
Feels like: 74°F
Precip: 15%
World Resorts Canada Barrie Weather

7 Day Weather Forecast

09.08
tue
DAY
74°F
N 2 mph
precip
15%
NIGHT
66°F
N 7 mph
precip
18%
09.09
wed
DAY
68°F
NE 11 mph
precip
50%
NIGHT
68°F
E 8 mph
precip
32%
09.10
thu
DAY
62°F
SE 18 mph
precip
6%
NIGHT
54°F
NE 6 mph
precip
11%
09.11
fri
DAY
66°F
E 6 mph
precip
2%
NIGHT
56°F
N 7 mph
precip
13%
09.12
sat
DAY
70°F
N 11 mph
precip
1%
NIGHT
68°F
N 5 mph
precip
21%
09.13
sun
DAY
68°F
SE 5 mph
precip
24%
NIGHT
62°F
NE 5 mph
precip
37%
09.14
mon
DAY
62°F
SW 5 mph
precip
25%
NIGHT
58°F
W 14 mph
precip
73%

Barrie Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Barrie was 19.1°F. The maximum and minimum values were 17.7°F and 20.1°F respectively.

Barrie on the Weather Map

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 69.8 °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
more details