Measurements:
°C
°F
CURRENT WEATHER
14:17
Ottawa
54°F
E 20 mph
Feels like: 48°F
Precip: 0%
World Resorts USA Ottawa Weather May Weather in Ottawa

Ottawa Weather: May

Average Day Temperature: 70.8°F
Average Night Temperature: 56.0°F
Number of Sunny Days: 10 days
Sunshine Hours: 14.0 - 14.9 hours
Number of Rainy Days: 3 days
Precipitation Totals: 1.7 in
detailed information

Air Temperature in May, °F

Select Year: 2024 2023 2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day Temperature   
Night Temperature

The highest day temperature in May 2024 was 87°F. The lowest night temperature was 48°F. The average values for day and night temperatures during May were 75.0°F и 58.1°F respectivly.

Sunny, Cloudy and Gloomy days
Sunny days
Cloudy days
Gloomy days
31%
38%
31%

You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in May, in

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
0.3
0.6
0.9
1.2
1.5
1.7
2.0

Precipitation total in May for Ottawa is 1.7 in. It makes may the most rainy month of the year.

Wind Speed in May, mph
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.9
3.9
5.8
7.7
9.7
11.6
13.5

The average wind speed in May is 9.3 mph.

Average Sunny Hours Per Day
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0.0
1.7
3.3
5.0
6.6
8.3
9.9
11.6

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Ottawa in May is 7.6 hours.

Best Time to Visit Ottawa
The most sunny months:
September 19 days
August 16 days
June 15 days
The most warm months:
August 84.9 °F
July 83.7 °F
June 81.8 °F
The most cold months:
January 27.0 °F
February 31.3 °F
December 36.5 °F
The most rainy months:
June 3 days
May 3 days
March 3 days
The most windy months:
March 11 mph
April 11 mph
November 10 mph
more details

Ottawa on the Weather Map

USA Resorts:
NAME
F°
Boston +38
Chicago +50
Hawaii +76
Honolulu +76
Houston +92
Las Vegas +84
Los Angeles +86
Miami +80
New York +50
Orlando +86
San Diego +68
San Francisco +58
Sarasota +80
Tampa +78
Washington +58
all resorts
24 Hours Weather Forecast
Ottawa
Local time: 14:17
24 mar, monday
1500 54°F
E
20 mph
1800 50°F
E
15 mph
2100 40°F
E
7 mph
25 mar, tuesday
0000 36°F
E
6 mph
0300 34°F
SE
3 mph
0600 36°F
SE
3 mph
0900 38°F
S
7 mph
1200 42°F
SE
8 mph