Measurements:
°C
°F
CURRENT WEATHER
01:49
Oshawa
42°F
E 5 mph
Feels like: 40°F
Precip: 6%
World Resorts Canada Oshawa Weather

7 Day Weather Forecast

10.19
mon
DAY
62°F
NE 9 mph
precip
1%
NIGHT
44°F
S 9 mph
precip
11%
10.20
tue
DAY
58°F
SW 9 mph
precip
1%
NIGHT
40°F
SW 6 mph
precip
6%
10.21
wed
DAY
56°F
NW 2 mph
precip
2%
NIGHT
40°F
E 4 mph
precip
7%
10.22
thu
DAY
62°F
SE 6 mph
precip
3%
NIGHT
44°F
SW 9 mph
precip
9%
10.23
fri
DAY
52°F
W 8 mph
precip
1%
NIGHT
36°F
W 6 mph
precip
8%
10.24
sat
DAY
56°F
NW 9 mph
precip
2%
NIGHT
46°F
NW 7 mph
precip
24%
10.25
sun
DAY
60°F
NE 16 mph
precip
17%
NIGHT
48°F
SE 12 mph
precip
9%

Oshawa Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Oshawa was 15.7°F. The maximum and minimum values were 12.2°F and 19.2°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