World Resorts Canada Ottawa Weather

Ottawa weather in May

Weather in Ottawa: May

Average day temperature: 63.1°F
Average night temperature: 49.1°F
Number of sunny days: 12 days
Day length: 14.3 - 15.4 hours
Number of rainy days: 5 days
Precipitation totals: 2.7 in.

Air temperature in May, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
Day temperature   
Night temperature

The highest day temperature during May of 2024 was 79°F. At the same time the lowest night temperature was 41°F. Daily and nightly averages during May were 63.2°F and 50.8°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
32%
32%
35%

Number of sunny, partly cloudy and cloudy days in May is almost equal.

Precipitation total in May, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.7
1.3
2.0
2.7
3.3
4.0
4.7
5.3
2.2
2.1
3.0
1.8
3.4
2.7
3.2
3.9
2.6
2.6
2.7
2.2
2.1
3.0
1.8
3.4
2.7
3.2
3.1
3.9
2.6
2.6
2.7

Precipitation total value in Ottawa in May is 3.1 in. Other months of the year show relatively similar values.

Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.1
4.6
6.1
7.6
9.2
10.7
8.0
8.2
7.5
6.6
6.5
6.7
7.5
8.9
8.7
8.4
7.8
8.0
8.2
7.5
6.6
6.5
6.7
7.5
7.7
8.9
8.7
8.4
7.8

The average wind speed value in May is 7.7 mph

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.5
3.0
4.4
5.9
7.4
8.9
10.4
2.9
4.3
4.8
6.7
7.6
8.6
8.1
5.6
4.5
3.6
3.3
2.9
4.3
4.8
6.7
7.6
8.6
8.1
8.5
5.6
4.5
3.6
3.3

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 8.5.

Best time for vacation in Ottawa

Sunniest months:
July 14 days
August 14 days
June 12 days
Warmest months:
July 78.2 °F
August 76.2 °F
June 71.5 °F
Coldest months:
January 19.1 °F
February 21.4 °F
December 27.3 °F
Rainiest months:
June 6 days
April 6 days
August 5 days
Windiest months:
April 9.8 mph
March 9.0 mph
February 8.8 mph

Ottawa on a weather map

Leaflet | Tiles © Esri
Places in Canada:
Name
°F
+46°F
+45°F
+27°F
+45°F
+12°F
+43°F
+41°F
+48°F
+34°F
+32°F
+45°F
+32°F
+46°F
+34°F
24 Hours Forecast
Ottawa
Local time: 21:33
April 01, tuesday
0000
30°F
SE
8 mph
0300
28°F
SE
12 mph
0600
27°F
SE
13 mph
0900
25°F
SE
14 mph
1200
34°F
SE
14 mph
1500
34°F
SE
14 mph
1800
30°F
SE
11 mph
2100
25°F
S
6 mph
Units of measurement: °C / °F