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Precipitation
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°Celsius
°Fahrenheit
Monthly Historical Averages
Oakville Harbour, ON
Your May weather outlook is here!
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May
Average Temperature
High
17°
Feels 17
Low
9°
Feels 7
Average Precipitation
14 Days
Rain amount
95.2mm
Snow amount
0cm
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Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
9°
2
8°
3
10°
4
16°
5
15°
6
12°
7
10°
8
11°
9
12°
10
13°
11
12°
12
13°
13
14°
14
15°
15
16°
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Friday, May 1, 2026
Day
9°
Feels 8
Wind
14 km/h SE
Gust
22 km/h
Humidity
54%
P.O.P
30%
Night
1°
Feels -3
Wind
17 km/h NW
Gust
25 km/h
Humidity
86%
P.O.P
30%
Historical Averages
May 1
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.