World Resorts Canada Oshawa Weather

Oshawa 7 Days Forecast

17.05
sun
Day
73°F
NE 3 mph
Precip.
0%
Night
59°F
NW 6 mph
Precip.
0%
18.05
mon
Day
63°F
NE 11 mph
Precip.
0%
Night
59°F
NE 8 mph
Precip.
100%
19.05
tue
Day
64°F
NE 16 mph
Precip.
0%
Night
61°F
NE 10 mph
Precip.
100%
20.05
wed
Day
52°F
SE 16 mph
Precip.
0%
Night
43°F
S 13 mph
Precip.
0%
21.05
thu
Day
50°F
W 8 mph
Precip.
0%
Night
43°F
W 8 mph
Precip.
0%
22.05
fri
Day
50°F
W 13 mph
Precip.
100%
Night
50°F
SE 6 mph
Precip.
0%
23.05
sat
Day
55°F
E 6 mph
Precip.
64%
Night
50°F
S 3 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 40.9°F. The highest and lowest sea temperatures during the month were 42.4°F and 39.9°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 12 days
Warmest months:
July 76.1 °F
August 75.3 °F
June 69.8 °F
Warmest sea temp:
August 70.6 °F
September 67.3 °F
July 67.1 °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
15:54
Oshawa
+81°F
NE 2 mph
Feels like: +82°F
Precip.: 0%
Places in Canada:
Name
°F
Bonavista
+46°F
Vancouver
+61°F
Victoria
+63°F
Winnipeg
+57°F
Halifax
+75°F
Quebec
+64°F
Les Iles-de-la-Madeleine
+46°F
Montreal
+75°F
Prince Edward Island
+63°F
Ottawa
+77°F
Saint John
+73°F
Sydney
+61°F
Thunder Bay
+52°F
Toronto
+84°F
Tofino
+55°F
all places
24 Hours Forecast
Oshawa
Local time: 15:54
May 17, sunday
1800
81°F
NW
6 mph
2100
70°F
W
7 mph
May 18, monday
0000
59°F
NW
6 mph
0300
54°F
W
9 mph
0600
52°F
NW
7 mph
0900
54°F
N
6 mph
1200
63°F
NE
11 mph
1500
68°F
NE
16 mph
Units of measurement: °C / °F