Measurements:
°C
°F
CURRENT WEATHER
05:39
Oshawa
34°F
NE 9 mph
Feels like: 30°F
Precip: 0%
World Resorts Canada Oshawa Weather

7 Day Weather Forecast

03.30
mon
DAY
56°F
E 11 mph
precip
0%
NIGHT
44°F
W 9 mph
precip
0%
03.31
tue
DAY
50°F
W 11 mph
precip
100%
NIGHT
50°F
N 2 mph
precip
100%
04.01
wed
DAY
40°F
SE 14 mph
precip
0%
NIGHT
36°F
SW 12 mph
precip
0%
04.02
thu
DAY
30°F
W 24 mph
precip
100%
NIGHT
36°F
W 11 mph
precip
100%
04.03
fri
DAY
36°F
W 5 mph
precip
100%
NIGHT
32°F
W 11 mph
precip
0%
04.04
sat
DAY
34°F
W 7 mph
precip
100%
NIGHT
38°F
N 2 mph
precip
100%
04.05
sun
DAY
42°F
E 14 mph
precip
100%
NIGHT
34°F
SE 13 mph
precip
0%

Oshawa Sea Water Temperature in March, °F

Select Year: 2026 2025 2024

The average sea surface temperature in March 2026 for Oshawa was 1.7°F. The maximum and minimum values were 1.2°F and 2.7°F respectively.

Oshawa on the Weather Map

Best Time to Visit Oshawa
The most sunny months:
September 15 days
August 14 days
July 12 days
The most warm months:
July 79.0 °F
August 78.1 °F
June 72.0 °F
Warmest sea temperature:
August 72.9 °F
September 69.3 °F
July 69.0 °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 3 days
March 2 days
The most windy months:
December 11 mph
November 11 mph
January 11 mph
more details