World Resorts Canada Oshawa Weather

Oshawa 14 Days Forecast

26.08
wed
Day
72°F
N 9 mph
Precip.
24%
Night
64°F
NW 4 mph
Precip.
15%
27.08
thu
Day
72°F
E 12 mph
Precip.
44%
Night
63°F
SE 8 mph
Precip.
16%
28.08
fri
Day
68°F
S 6 mph
Precip.
1%
Night
57°F
S 4 mph
Precip.
8%
29.08
sat
Day
72°F
N 12 mph
Precip.
3%
Night
64°F
W 1 mph
Precip.
18%
30.08
sun
Day
72°F
NE 11 mph
Precip.
14%
Night
63°F
E 3 mph
Precip.
39%
31.08
mon
Day
66°F
N 6 mph
Precip.
35%
Night
68°F
NW 4 mph
Precip.
49%
01.09
tue
Day
73°F
E 5 mph
Precip.
37%
Night
72°F
W 5 mph
Precip.
20%
02.09
wed
Day
79°F
E 14 mph
Precip.
2%
Night
68°F
S 6 mph
Precip.
21%
03.09
thu
Day
75°F
SE 8 mph
Precip.
11%
Night
61°F
SW 9 mph
Precip.
24%
04.09
fri
Day
66°F
W 11 mph
Precip.
14%
Night
55°F
SW 8 mph
Precip.
14%
05.09
sat
Day
63°F
NW 15 mph
Precip.
65%
Night
61°F
NW 5 mph
Precip.
54%
06.09
sun
Day
72°F
SE 4 mph
Precip.
7%
Night
63°F
W 3 mph
Precip.
34%
07.09
mon
Day
73°F
NW 7 mph
Precip.
15%
Night
68°F
W 6 mph
Precip.
21%
08.09
tue
Day
63°F
NW 8 mph
Precip.
14%
Night
57°F
W 9 mph
Precip.
19%

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 69.5°F. The highest and lowest sea temperatures during the month were 73.2°F and 62.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.2°F. The highest and lowest sea temperatures during the month were 68.0°F and 57.6°F.

Air temperature in Oshawa, °F

Precipitation total in Oshawa, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Oshawa

Sunniest months:
September 15 days
August 14 days
July 14 days
Warmest months:
July 76.8 °F
August 75.3 °F
June 70.5 °F
Warmest sea temp:
August 70.5 °F
September 67.3 °F
July 66.5 °F
Coldest months:
January 26.6 °F
February 27.6 °F
December 33.6 °F
Rainiest months:
July 3 days
April 2 days
March 2 days
Windiest months:
December 11.7 mph
November 11.7 mph
January 11.7 mph

Oshawa on a weather map

Current weather
12:59
Oshawa
+72°F
N 9 mph
Feels like: +72°F
Precip.: 24%
Places in Canada:
Name
°F
Barrie
+72°F
Vancouver
+63°F
Victoria
+63°F
Winnipeg
+72°F
Halifax
+73°F
Yellowknife
+63°F
Quebec
+70°F
Montreal
+75°F
Niagara Falls
+77°F
Prince Edward Island
+79°F
Ottawa
+73°F
Saint John
+59°F
Sydney
+72°F
Thunder Bay
+70°F
Toronto
+72°F
all places
24 Hours Forecast
Oshawa
Local time: 12:59
August 26, wednesday
1500
73°F
N
11 mph
1800
72°F
N
9 mph
2100
64°F
W
7 mph
August 27, thursday
0000
64°F
NW
4 mph
0300
64°F
N
4 mph
0600
63°F
N
10 mph
0900
66°F
NE
11 mph
1200
72°F
E
12 mph
Units of measurement: °C / °F