Measurements:
°C
°F
CURRENT WEATHER
18:36
Oshawa
68°F
NE 3 mph
Feels like: 68°F
Precip: 16%
World Resorts Canada Oshawa Weather

14 Day Weather Forecast

09.28
mon
DAY
66°F
SW 7 mph
precip
15%
NIGHT
60°F
W 5 mph
precip
26%
09.29
tue
DAY
64°F
N 6 mph
precip
17%
NIGHT
58°F
N 2 mph
precip
31%
09.30
wed
DAY
66°F
NE 9 mph
precip
23%
NIGHT
66°F
E 4 mph
precip
18%
10.01
thu
DAY
66°F
N 8 mph
precip
24%
NIGHT
64°F
E 5 mph
precip
63%
10.02
fri
DAY
56°F
SE 9 mph
precip
28%
NIGHT
48°F
E 6 mph
precip
6%
10.03
sat
DAY
56°F
SE 7 mph
precip
4%
NIGHT
48°F
SW 5 mph
precip
17%
10.04
sun
DAY
56°F
NW 17 mph
precip
50%
NIGHT
58°F
N 11 mph
precip
85%
10.05
mon
DAY
58°F
NE 14 mph
precip
32%
NIGHT
50°F
SE 14 mph
precip
65%
10.06
tue
DAY
50°F
SE 12 mph
precip
11%
NIGHT
44°F
SE 4 mph
precip
14%
10.07
wed
DAY
54°F
N 4 mph
precip
3%
NIGHT
48°F
NW 4 mph
precip
24%
10.08
thu
DAY
50°F
NW 8 mph
precip
80%
NIGHT
52°F
E 7 mph
precip
68%
10.09
fri
DAY
54°F
SE 6 mph
precip
9%
NIGHT
50°F
W 4 mph
precip
25%
10.10
sat
DAY
56°F
W 12 mph
precip
13%
NIGHT
48°F
SW 7 mph
precip
24%
10.11
sun
DAY
52°F
SW 7 mph
precip
24%
NIGHT
48°F
S 14 mph
precip
77%

Oshawa Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Oshawa was 68.4°F. The maximum and minimum values were 61.2°F and 72.6°F respectively.

Oshawa on the Weather Map

Best Time to Visit Oshawa
The most sunny months:
September 14 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 69.1 °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
Canada Resorts:
NAME
F°
Halifax +56
Moncton +52
Montreal +52
Nanaimo +54
Niagara Falls +64
Ottawa +54
Prince Edward Island +54
Quebec +50
Saint Andrews +56
St. John's +40
Sydney +52
Toronto +72
Vancouver +58
Victoria +56
Winnipeg +52
all resorts
24 Hours Weather Forecast
Oshawa
Local time: 18:36
28 sep, monday
2100 64°F
W
5 mph
29 sep, tuesday
0000 60°F
W
5 mph
0300 58°F
W
3 mph
0600 56°F
W
2 mph
0900 60°F
W
2 mph
1200 64°F
N
6 mph
1500 70°F
N
7 mph
1800 66°F
N
6 mph