Measurements:
°C
°F
CURRENT WEATHER
17:00
Oshawa
70°F
N 5 mph
Feels like: 70°F
Precip: 17%
World Resorts Canada Oshawa Weather

14 Day Weather Forecast

09.08
tue
DAY
74°F
N 2 mph
precip
18%
NIGHT
66°F
NW 6 mph
precip
26%
09.09
wed
DAY
66°F
N 7 mph
precip
52%
NIGHT
66°F
E 7 mph
precip
38%
09.10
thu
DAY
68°F
SE 19 mph
precip
11%
NIGHT
54°F
SE 6 mph
precip
10%
09.11
fri
DAY
68°F
E 6 mph
precip
1%
NIGHT
54°F
NW 4 mph
precip
10%
09.12
sat
DAY
70°F
N 8 mph
precip
4%
NIGHT
62°F
N 3 mph
precip
25%
09.13
sun
DAY
80°F
NE 8 mph
precip
3%
NIGHT
70°F
S 2 mph
precip
38%
09.14
mon
DAY
72°F
W 4 mph
precip
22%
NIGHT
60°F
W 12 mph
precip
80%
09.15
tue
DAY
74°F
N 11 mph
precip
37%
NIGHT
64°F
SE 16 mph
precip
16%
09.16
wed
DAY
60°F
NE 11 mph
precip
4%
NIGHT
54°F
E 4 mph
precip
15%
09.17
thu
DAY
64°F
E 9 mph
precip
4%
NIGHT
56°F
E 4 mph
precip
9%
09.18
fri
DAY
66°F
N 11 mph
precip
5%
NIGHT
62°F
NE 11 mph
precip
50%
09.19
sat
DAY
48°F
S 17 mph
precip
46%
NIGHT
40°F
S 9 mph
precip
5%
09.20
sun
DAY
52°F
SE 3 mph
precip
1%
NIGHT
44°F
NE 1 mph
precip
6%
09.21
mon
DAY
60°F
NE 7 mph
precip
2%
NIGHT
52°F
NE 2 mph
precip
6%

Oshawa Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Oshawa was 66.8°F. The maximum and minimum values were 58.4°F and 70.0°F respectively.

Oshawa on the Weather Map

Best Time to Visit Oshawa
The most sunny months:
September 15 days
August 14 days
July 14 days
The most warm months:
July 79.8 °F
August 78.1 °F
June 72.8 °F
Warmest sea temperature:
August 72.5 °F
September 69.3 °F
July 68.3 °F
The most cold months:
January 24.0 °F
February 25.1 °F
December 31.8 °F
The most rainy months:
July 3 days
April 2 days
August 2 days
The most windy months:
December 11 mph
November 11 mph
January 11 mph
more details
24 Hours Weather Forecast
Oshawa
Local time: 17:00
08 sep, tuesday
1800 70°F
N
5 mph
2100 68°F
NW
4 mph
09 sep, wednesday
0000 66°F
NW
6 mph
0300 66°F
N
2 mph
0600 66°F
NW
6 mph
0900 66°F
NW
5 mph
1200 66°F
N
7 mph
1500 70°F
NE
5 mph