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Monthly weather forecast in Ottawa
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
30 days
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun
Sunday
Mon
Monday
Tue
Tuesday
Wed
Wednesday
Thu
Thursday
Fri
Friday
Sat
Saturday
18
+24
+18
18 August, sun
+24
+18
Feels like
+24
748 mmHg
68%
4.6
m/s
W
18 August, Sunday. day, 24°; night, 18°; clear
19
August
+18
+12
19 August, mon
+18
+12
Feels like
+13
751 mmHg
73%
6.9
m/s
N
Climate normal
+23
+17
19 August, Monday. day, 18°; night, 12°; light rain
20
+18
+13
20 August, tue
+18
+13
Feels like
+12
755 mmHg
66%
5.9
m/s
N
Climate normal
+22
+17
20 August, Tuesday. day, 18°; night, 13°; rain
21
+17
+14
21 August, wed
+17
+14
Feels like
+14
758 mmHg
73%
3.7
m/s
NW
Climate normal
+21
+17
21 August, Wednesday. day, 17°; night, 14°; rain
22
+22
+14
22 August, thu
+22
+14
Feels like
+17
758 mmHg
70%
3.3
m/s
W
Climate normal
+22
+17
22 August, Thursday. day, 22°; night, 14°; partly cloudy
23
+26
+16
23 August, fri
+26
+16
Feels like
+21
759 mmHg
58%
3.3
m/s
SW
Climate normal
+23
+17
23 August, Friday. day, 26°; night, 16°; mostly clear
24
+25
+17
24 August, sat
+25
+17
Feels like
+22
759 mmHg
69%
2.8
m/s
SW
Climate normal
+23
+17
24 August, Saturday. day, 25°; night, 17°; partly cloudy
25
+27
+18
25 August, sun
+27
+18
Feels like
+25
758 mmHg
69%
3
m/s
S
Climate normal
+21
+17
25 August, Sunday. day, 27°; night, 18°; mostly clear
26
+27
+20
26 August, mon
+27
+20
Feels like
+27
757 mmHg
77%
3.3
m/s
SW
Climate normal
+22
+16
26 August, Monday. day, 27°; night, 20°; light rain
27
+26
+18
27 August, tue
+26
+18
Feels like
+23
757 mmHg
70%
3.4
m/s
SW
Climate normal
+21
+17
27 August, Tuesday. day, 26°; night, 18°; rain
28
+29
+17
28 August, wed
+29
+17
Feels like
+24
755 mmHg
71%
3.7
m/s
SW
Climate normal
+21
+16
28 August, Wednesday. day, 29°; night, 17°; partly cloudy
29
+26
+18
29 August, thu
+26
+18
Feels like
+23
757 mmHg
71%
3.6
m/s
SW
Climate normal
+22
+16
29 August, Thursday. day, 26°; night, 18°; partly cloudy
30
+25
+18
30 August, fri
+25
+18
Feels like
+22
755 mmHg
72%
3.7
m/s
SW
Climate normal
+22
+17
30 August, Friday. day, 25°; night, 18°; partly cloudy
31
+16
+12
31 August, sat
+16
+12
Feels like
+9
751 mmHg
60%
3.6
m/s
SW
Climate normal
+23
+18
31 August, Saturday. day, 16°; night, 12°; clear
1 September
+16
+8
1 September, sun
+16
+8
Feels like
+12
752 mmHg
83%
3.8
m/s
SW
Climate normal
+23
+17
1 September, Sunday. day, 16°; night, 8°; partly cloudy
2
+21
+14
2 September, mon
+21
+14
Feels like
+16
752 mmHg
78%
2.5
m/s
S
Climate normal
+22
+17
2 September, Monday. day, 21°; night, 14°; clear
3
+23
+18
3 September, tue
+23
+18
Feels like
+15
749 mmHg
71%
6.9
m/s
SW
Climate normal
+22
+16
3 September, Tuesday. day, 23°; night, 18°; clear
4
+23
+17
4 September, wed
+23
+17
Feels like
+18
750 mmHg
84%
2.2
m/s
NW
Climate normal
+20
+17
4 September, Wednesday. day, 23°; night, 17°; mostly clear
5
+22
+20
5 September, thu
+22
+20
Feels like
+19
747 mmHg
88%
5.6
m/s
SW
Climate normal
+21
+15
5 September, Thursday. day, 22°; night, 20°; rain
6
+24
+13
6 September, fri
+24
+13
Feels like
+18
746 mmHg
74%
4.6
m/s
NW
Climate normal
+21
+16
6 September, Friday. day, 24°; night, 13°; clear
7
+18
+8
7 September, sat
+18
+8
Feels like
+9
749 mmHg
68%
2.6
m/s
N
Climate normal
+20
+16
7 September, Saturday. day, 18°; night, 8°; clear
8
+20
+10
8 September, sun
+20
+10
Feels like
+13
748 mmHg
71%
1.5
m/s
SE
Climate normal
+20
+15
8 September, Sunday. day, 20°; night, 10°; clear
9
+24
+15
9 September, mon
+24
+15
Feels like
+18
747 mmHg
74%
1.6
m/s
SE
Climate normal
+19
+14
9 September, Monday. day, 24°; night, 15°; clear
10
+26
+20
10 September, tue
+26
+20
Feels like
+22
747 mmHg
74%
3.3
m/s
S
Climate normal
+20
+15
10 September, Tuesday. day, 26°; night, 20°; clear
11
+26
+20
11 September, wed
+26
+20
Feels like
+21
743 mmHg
72%
7
m/s
S
Climate normal
+18
+14
11 September, Wednesday. day, 26°; night, 20°; light rain
12
+22
+17
12 September, thu
+22
+17
Feels like
+21
741 mmHg
94%
3.5
m/s
SW
Climate normal
+18
+14
12 September, Thursday. day, 22°; night, 17°; rain
13
+22
+12
13 September, fri
+22
+12
Feels like
+15
744 mmHg
70%
4.9
m/s
W
Climate normal
+19
+12
13 September, Friday. day, 22°; night, 12°; clear
14
+18
+12
14 September, sat
+18
+12
Feels like
+12
749 mmHg
63%
1.9
m/s
NE
Climate normal
+18
+14
14 September, Saturday. day, 18°; night, 12°; mostly clear
15
+18
+14
15 September, sun
+18
+14
Feels like
+12
750 mmHg
67%
2.6
m/s
SE
Climate normal
+15
+13
15 September, Sunday. day, 18°; night, 14°; clear
16
+22
+17
16 September, mon
+22
+17
Feels like
+16
741 mmHg
87%
7.2
m/s
S
Climate normal
+17
+10
16 September, Monday. day, 22°; night, 17°; rain
17
+13
+8
17 September, tue
+13
+8
Feels like
+7
741 mmHg
75%
6.3
m/s
NW
Climate normal
+18
+12
17 September, Tuesday. day, 13°; night, 8°; rain
Average data for 10 years
Next, the average data for 10 years
18
+18
+12
18 September, wed
+18
+12
Feels like
+16
752 mmHg
69%
5.5
m/s
SW
18 September, Wednesday. day, 18°; night, 12°; partly cloudy
19
+19
+12
19 September, thu
+19
+12
Feels like
+17
753 mmHg
63%
5
m/s
SW
19 September, Thursday. day, 19°; night, 12°; clear
20
+19
+14
20 September, fri
+19
+14
Feels like
+18
751 mmHg
70%
5
m/s
S
20 September, Friday. day, 19°; night, 14°; clear
21
+18
+14
21 September, sat
+18
+14
Feels like
+15
752 mmHg
70%
5.5
m/s
W
21 September, Saturday. day, 18°; night, 14°; clear
Average for 30 days
15
sunny days
9
days with precipitation
6
cloudy days
15 sunny days; 9 days with precipitation; 6 cloudy days;
73
%
air humidity
3.9
m/s
Wind
SW
27
mm of precipitation
(3% of annual average)
air humidity 73%; 27 millimeters of precipitation (3% of annual average); Wind south-westerly 3.9 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
N
NW
W
SW
SW
S
SW
SW
SW
SW
SW
SW
SW
S
SW
NW
SW
NW
N
SE
SE
S
S
SW
W
NE
SE
S
NW
19
Average data for 10 years
20
21
22
23
24
25
26
27
28
29
30
31
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Daytime temperature
Night-time temperature
