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Monthly
Precipitation
Temperature
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°Celsius
°Fahrenheit
Monthly Historical Averages
Oshawa, ON
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May
Average Temperature
High
16°
Feels 16
Low
8°
Feels 7
Average Precipitation
11 Days
Rain amount
88.5mm
Snow amount
0cm
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
20°
18
19°
19
20°
20
13°
21
12°
22
15°
23
13°
24
14°
25
17°
26
17°
27
16°
28
18°
29
17°
30
17°
31
18°
Forecast
Sunday, May 17, 2026
Day
20°
Feels 20
Wind
10 km/h S
Gust
19 km/h
Humidity
49%
P.O.P
20%
Night
11°
Feels 8
Wind
22 km/h E
Gust
33 km/h
Humidity
87%
P.O.P
70%
Rain
2-4 mm
Historical Averages
May 17
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.