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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
25
+21
+17
25 August, sun
+21
+17
Feels like
+20
751 mmHg
69%
5.6
m/s
W
25 August, Sunday. day, 21°; night, 17°; clear
26
+22
+16
26 August, mon
+22
+16
Feels like
+21
753 mmHg
66%
4.5
m/s
W
26 August, Monday. day, 22°; night, 16°; clear
27
+21
+17
27 August, tue
+21
+17
Feels like
+20
752 mmHg
68%
4.8
m/s
NW
27 August, Tuesday. day, 21°; night, 17°; clear
28
+21
+16
28 August, wed
+21
+16
Feels like
+21
751 mmHg
74%
5.4
m/s
NW
28 August, Wednesday. day, 21°; night, 16°; clear
29
+22
+16
29 August, thu
+22
+16
Feels like
+21
751 mmHg
69%
4.8
m/s
W
29 August, Thursday. day, 22°; night, 16°; rain
30
+22
+17
30 August, fri
+22
+17
Feels like
+22
751 mmHg
69%
5.1
m/s
W
30 August, Friday. day, 22°; night, 17°; rain
31
August
+25
+17
31 August, sat
+25
+17
Feels like
+22
753 mmHg
79%
4.1
m/s
SW
Climate normal
+23
+18
31 August, Saturday. day, 25°; night, 17°; thunderstorm with rain
1 September
+24
+12
1 September, sun
+24
+12
Feels like
+17
750 mmHg
68%
6.4
m/s
NW
Climate normal
+23
+17
1 September, Sunday. day, 24°; night, 12°; rain
2
+17
+10
2 September, mon
+17
+10
Feels like
+9
759 mmHg
54%
6
m/s
NW
Climate normal
+22
+17
2 September, Monday. day, 17°; night, 10°; light rain
3
+21
+11
3 September, tue
+21
+11
Feels like
+13
763 mmHg
58%
4
m/s
W
Climate normal
+22
+16
3 September, Tuesday. day, 21°; night, 11°; mostly clear
4
+24
+12
4 September, wed
+24
+12
Feels like
+19
764 mmHg
62%
3.1
m/s
S
Climate normal
+20
+17
4 September, Wednesday. day, 24°; night, 12°; clear
5
+25
+15
5 September, thu
+25
+15
Feels like
+19
762 mmHg
60%
4.2
m/s
S
Climate normal
+21
+15
5 September, Thursday. day, 25°; night, 15°; clear
6
+23
+14
6 September, fri
+23
+14
Feels like
+19
756 mmHg
70%
4.9
m/s
S
Climate normal
+21
+16
6 September, Friday. day, 23°; night, 14°; heavy rain
7
+20
+12
7 September, sat
+20
+12
Feels like
+17
756 mmHg
77%
3.8
m/s
E
Climate normal
+20
+16
7 September, Saturday. day, 20°; night, 12°; light rain
8
+20
+12
8 September, sun
+20
+12
Feels like
+14
758 mmHg
63%
4.9
m/s
NW
Climate normal
+20
+15
8 September, Sunday. day, 20°; night, 12°; rain
9
+22
+14
9 September, mon
+22
+14
Feels like
+18
758 mmHg
68%
3.4
m/s
SW
Climate normal
+19
+14
9 September, Monday. day, 22°; night, 14°; rain
10
+23
+15
10 September, tue
+23
+15
Feels like
+19
754 mmHg
72%
4.2
m/s
SW
Climate normal
+20
+15
10 September, Tuesday. day, 23°; night, 15°; partly cloudy
11
+21
+13
11 September, wed
+21
+13
Feels like
+16
754 mmHg
72%
4.1
m/s
SW
Climate normal
+18
+14
11 September, Wednesday. day, 21°; night, 13°; partly cloudy
12
+18
+12
12 September, thu
+18
+12
Feels like
+17
740 mmHg
96%
2.6
m/s
S
Climate normal
+18
+14
12 September, Thursday. day, 18°; night, 12°; rain
13
+16
+12
13 September, fri
+16
+12
Feels like
+11
740 mmHg
90%
7
m/s
W
Climate normal
+19
+12
13 September, Friday. day, 16°; night, 12°; light rain
14
+13
+13
14 September, sat
+13
+13
Feels like
+7
742 mmHg
91%
7.2
m/s
W
Climate normal
+18
+14
14 September, Saturday. day, 13°; night, 13°; rain
15
+16
+12
15 September, sun
+16
+12
Feels like
+10
746 mmHg
71%
5.1
m/s
W
Climate normal
+15
+13
15 September, Sunday. day, 16°; night, 12°; partly cloudy
16
+16
+13
16 September, mon
+16
+13
Feels like
+12
744 mmHg
89%
6
m/s
SW
Climate normal
+17
+10
16 September, Monday. day, 16°; night, 13°; light rain
17
+17
+11
17 September, tue
+17
+11
Feels like
+10
748 mmHg
72%
4.9
m/s
W
Climate normal
+18
+12
17 September, Tuesday. day, 17°; night, 11°; mostly clear
18
+18
+17
18 September, wed
+18
+17
Feels like
+14
749 mmHg
75%
3.7
m/s
S
Climate normal
+18
+12
18 September, Wednesday. day, 18°; night, 17°; partly cloudy
19
+21
+17
19 September, thu
+21
+17
Feels like
+17
744 mmHg
92%
6.9
m/s
S
Climate normal
+19
+12
19 September, Thursday. day, 21°; night, 17°; rain
20
+17
+10
20 September, fri
+17
+10
Feels like
+14
742 mmHg
93%
5.1
m/s
W
Climate normal
+19
+14
20 September, Friday. day, 17°; night, 10°; rain
21
+15
+10
21 September, sat
+15
+10
Feels like
+10
745 mmHg
85%
4.4
m/s
SW
Climate normal
+18
+14
21 September, Saturday. day, 15°; night, 10°; partly cloudy
22
+14
+9
22 September, sun
+14
+9
Feels like
+8
747 mmHg
81%
3.6
m/s
W
Climate normal
+18
+13
22 September, Sunday. day, 14°; night, 9°; mostly clear
23
+12
+4
23 September, mon
+12
+4
Feels like
+6
750 mmHg
75%
2.8
m/s
NW
Climate normal
+18
+12
23 September, Monday. day, 12°; night, 4°; mostly clear
24
+13
+9
24 September, tue
+13
+9
Feels like
+6
752 mmHg
70%
3.5
m/s
NE
Climate normal
+18
+13
24 September, Tuesday. day, 13°; night, 9°; mostly clear
25
+11
+12
25 September, wed
+11
+12
Feels like
+4
747 mmHg
87%
7.7
m/s
E
Climate normal
+18
+13
25 September, Wednesday. day, 11°; night, 12°; rain
26
+14
+12
26 September, thu
+14
+12
Feels like
+10
742 mmHg
97%
5.4
m/s
SE
Climate normal
+20
+14
26 September, Thursday. day, 14°; night, 12°; rain
27
+14
+12
27 September, fri
+14
+12
Feels like
+10
740 mmHg
92%
5.3
m/s
SW
Climate normal
+18
+14
27 September, Friday. day, 14°; night, 12°; light rain
28
+13
+9
28 September, sat
+13
+9
Feels like
+6
736 mmHg
73%
5.7
m/s
NW
Climate normal
+17
+14
28 September, Saturday. day, 13°; night, 9°; mostly clear
Average for 30 days
8
sunny days
17
days with precipitation
5
cloudy days
8 sunny days; 17 days with precipitation; 5 cloudy days;
77
%
air humidity
4.9
m/s
Wind
W
48
mm of precipitation
(5% of annual average)
air humidity 77%; 48 millimeters of precipitation (5% of annual average); Wind westerly 4.9 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
SW
NW
NW
W
S
S
S
E
NW
SW
SW
SW
S
W
W
W
SW
W
S
S
W
SW
W
NW
NE
E
SE
SW
NW
NW
31
Average data for 10 years
1
September
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Daytime temperature
Night-time temperature
