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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
+23
+17
19 August, mon
+23
+17
Feels like
+22
750 mmHg
68%
5.1
m/s
SW
19 August, Monday. day, 23°; night, 17°; rain
20
+22
+17
20 August, tue
+22
+17
Feels like
+23
750 mmHg
73%
4.8
m/s
SW
20 August, Tuesday. day, 22°; night, 17°; rain
21
+21
+17
21 August, wed
+21
+17
Feels like
+21
749 mmHg
77%
5.6
m/s
SW
21 August, Wednesday. day, 21°; night, 17°; rain
22
+22
+17
22 August, thu
+22
+17
Feels like
+21
752 mmHg
67%
5
m/s
NW
22 August, Thursday. day, 22°; night, 17°; rain
23
August
+25
+16
23 August, fri
+25
+16
Feels like
+20
760 mmHg
59%
4.1
m/s
SW
Climate normal
+23
+17
23 August, Friday. day, 25°; night, 16°; partly cloudy
24
+25
+18
24 August, sat
+25
+18
Feels like
+23
760 mmHg
67%
3.1
m/s
SW
Climate normal
+23
+17
24 August, Saturday. day, 25°; night, 18°; partly cloudy
25
+27
+18
25 August, sun
+27
+18
Feels like
+24
760 mmHg
68%
2.9
m/s
W
Climate normal
+21
+17
25 August, Sunday. day, 27°; night, 18°; light rain
26
+27
+17
26 August, mon
+27
+17
Feels like
+24
758 mmHg
68%
1.9
m/s
E
Climate normal
+22
+16
26 August, Monday. day, 27°; night, 17°; heavy rain
27
+27
+18
27 August, tue
+27
+18
Feels like
+25
756 mmHg
70%
2.9
m/s
E
Climate normal
+21
+17
27 August, Tuesday. day, 27°; night, 18°; light rain
28
+24
+16
28 August, wed
+24
+16
Feels like
+22
755 mmHg
78%
3.6
m/s
SE
Climate normal
+21
+16
28 August, Wednesday. day, 24°; night, 16°; rain
29
+23
+16
29 August, thu
+23
+16
Feels like
+20
756 mmHg
66%
2.9
m/s
NW
Climate normal
+22
+16
29 August, Thursday. day, 23°; night, 16°; light rain
30
+24
+17
30 August, fri
+24
+17
Feels like
+22
756 mmHg
66%
3.2
m/s
E
Climate normal
+22
+17
30 August, Friday. day, 24°; night, 17°; rain
31
+25
+16
31 August, sat
+25
+16
Feels like
+21
754 mmHg
71%
3.9
m/s
W
Climate normal
+23
+18
31 August, Saturday. day, 25°; night, 16°; heavy rain
1 September
+25
+16
1 September, sun
+25
+16
Feels like
+21
754 mmHg
62%
4.1
m/s
SW
Climate normal
+23
+17
1 September, Sunday. day, 25°; night, 16°; partly cloudy
2
+26
+16
2 September, mon
+26
+16
Feels like
+21
753 mmHg
65%
3.1
m/s
W
Climate normal
+22
+17
2 September, Monday. day, 26°; night, 16°; partly cloudy
3
+23
+17
3 September, tue
+23
+17
Feels like
+17
755 mmHg
56%
4.9
m/s
W
Climate normal
+22
+16
3 September, Tuesday. day, 23°; night, 17°; partly cloudy
4
+23
+19
4 September, wed
+23
+19
Feels like
+23
748 mmHg
93%
2.9
m/s
S
Climate normal
+20
+17
4 September, Wednesday. day, 23°; night, 19°; light rain
5
+24
+20
5 September, thu
+24
+20
Feels like
+20
744 mmHg
86%
5.4
m/s
S
Climate normal
+21
+15
5 September, Thursday. day, 24°; night, 20°; light rain
6
+21
+14
6 September, fri
+21
+14
Feels like
+20
742 mmHg
89%
4.7
m/s
SW
Climate normal
+21
+16
6 September, Friday. day, 21°; night, 14°; light rain
7
+17
+11
7 September, sat
+17
+11
Feels like
+12
746 mmHg
81%
2.9
m/s
W
Climate normal
+20
+16
7 September, Saturday. day, 17°; night, 11°; mostly clear
8
+19
+16
8 September, sun
+19
+16
Feels like
+14
744 mmHg
79%
2.7
m/s
S
Climate normal
+20
+15
8 September, Sunday. day, 19°; night, 16°; light rain
9
+15
+11
9 September, mon
+15
+11
Feels like
+9
739 mmHg
92%
8.6
m/s
SW
Climate normal
+19
+14
9 September, Monday. day, 15°; night, 11°; rain
10
+10
+9
10 September, tue
+10
+9
Feels like
+4
742 mmHg
88%
7.3
m/s
W
Climate normal
+20
+15
10 September, Tuesday. day, 10°; night, 9°; partly cloudy
11
+12
+8
11 September, wed
+12
+8
Feels like
+4
744 mmHg
62%
6.2
m/s
W
Climate normal
+18
+14
11 September, Wednesday. day, 12°; night, 8°; mostly clear
12
+15
+14
12 September, thu
+15
+14
Feels like
+7
748 mmHg
67%
5.5
m/s
W
Climate normal
+18
+14
12 September, Thursday. day, 15°; night, 14°; mostly clear
13
+15
+9
13 September, fri
+15
+9
Feels like
+11
745 mmHg
85%
4.7
m/s
W
Climate normal
+19
+12
13 September, Friday. day, 15°; night, 9°; partly cloudy
14
+13
+7
14 September, sat
+13
+7
Feels like
+6
746 mmHg
68%
4.2
m/s
NW
Climate normal
+18
+14
14 September, Saturday. day, 13°; night, 7°; clear
15
+14
+12
15 September, sun
+14
+12
Feels like
+7
745 mmHg
66%
3.9
m/s
W
Climate normal
+15
+13
15 September, Sunday. day, 14°; night, 12°; rain
16
+16
+9
16 September, mon
+16
+9
Feels like
+10
743 mmHg
80%
5.9
m/s
NW
Climate normal
+17
+10
16 September, Monday. day, 16°; night, 9°; partly cloudy
17
+13
+6
17 September, tue
+13
+6
Feels like
+5
750 mmHg
71%
3.5
m/s
N
Climate normal
+18
+12
17 September, Tuesday. day, 13°; night, 6°; rain
18
+14
+4
18 September, wed
+14
+4
Feels like
+5
753 mmHg
77%
2.5
m/s
NE
Climate normal
+18
+12
18 September, Wednesday. day, 14°; night, 4°; light rain
19
+17
+13
19 September, thu
+17
+13
Feels like
+10
750 mmHg
77%
2.9
m/s
SE
Climate normal
+19
+12
19 September, Thursday. day, 17°; night, 13°; clear
20
+16
+15
20 September, fri
+16
+15
Feels like
+11
745 mmHg
71%
6.4
m/s
SE
Climate normal
+19
+14
20 September, Friday. day, 16°; night, 15°; partly cloudy
21
+15
+10
21 September, sat
+15
+10
Feels like
+10
740 mmHg
88%
5.2
m/s
SW
Climate normal
+18
+14
21 September, Saturday. day, 15°; night, 10°; partly cloudy
Average for 30 days
8
sunny days
12
days with precipitation
10
cloudy days
8 sunny days; 12 days with precipitation; 10 cloudy days;
74
%
air humidity
4.2
m/s
Wind
W
41
mm of precipitation
(4% of annual average)
air humidity 74%; 41 millimeters of precipitation (4% of annual average); Wind westerly 4.2 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
W
E
E
SE
NW
E
W
SW
W
W
S
S
SW
W
S
SW
W
W
W
W
NW
W
NW
N
NE
SE
SE
SW
23
Average data for 10 years
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
18
19
20
21
Daytime temperature
Night-time temperature
