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September 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
31
+27
+17
31 August, sun
+27
+17
Feels like
+21
745 mmHg
72%
4.19
m/s
SE
31 August, Sunday. day, 27°; night, 17°; clear
1
+27
+17
1 September, mon
+27
+17
Feels like
+21
745 mmHg
73%
4.3
m/s
SE
1 September, Monday. day, 27°; night, 17°; clear
2
+27
+17
2 September, tue
+27
+17
Feels like
+21
745 mmHg
71%
4.3
m/s
S
2 September, Tuesday. day, 27°; night, 17°; clear
3
+28
+17
3 September, wed
+28
+17
Feels like
+21
745 mmHg
70%
4.6
m/s
S
3 September, Wednesday. day, 28°; night, 17°; clear
4
+27
+17
4 September, thu
+27
+17
Feels like
+20
745 mmHg
70%
4.6
m/s
S
4 September, Thursday. day, 27°; night, 17°; rain
5
+27
+16
5 September, fri
+27
+16
Feels like
+20
746 mmHg
70%
5
m/s
S
5 September, Friday. day, 27°; night, 16°; clear
6
+27
+17
6 September, sat
+27
+17
Feels like
+20
745 mmHg
70%
5.1
m/s
S
6 September, Saturday. day, 27°; night, 17°; partly cloudy
7
+26
+17
7 September, sun
+26
+17
Feels like
+20
744 mmHg
72%
5.1
m/s
S
7 September, Sunday. day, 26°; night, 17°; rain
8
+24
+16
8 September, mon
+24
+16
Feels like
+18
744 mmHg
72%
4.9
m/s
S
8 September, Monday. day, 24°; night, 16°; rain
9
+24
+15
9 September, tue
+24
+15
Feels like
+18
745 mmHg
74%
4.3
m/s
SE
9 September, Tuesday. day, 24°; night, 15°; rain
10
+25
+15
10 September, wed
+25
+15
Feels like
+18
746 mmHg
72%
4.9
m/s
S
10 September, Wednesday. day, 25°; night, 15°; clear
11
+26
+15
11 September, thu
+26
+15
Feels like
+18
746 mmHg
71%
4.9
m/s
S
11 September, Thursday. day, 26°; night, 15°; rain
12
+25
+15
12 September, fri
+25
+15
Feels like
+18
745 mmHg
71%
4.9
m/s
S
12 September, Friday. day, 25°; night, 15°; rain
13
+25
+15
13 September, sat
+25
+15
Feels like
+17
745 mmHg
70%
5.1
m/s
SW
13 September, Saturday. day, 25°; night, 15°; partly cloudy
14
+24
+14
14 September, sun
+24
+14
Feels like
+17
745 mmHg
70%
4.69
m/s
S
14 September, Sunday. day, 24°; night, 14°; clear
15
+24
+14
15 September, mon
+24
+14
Feels like
+16
747 mmHg
68%
4.6
m/s
S
15 September, Monday. day, 24°; night, 14°; partly cloudy
16
+24
+14
16 September, tue
+24
+14
Feels like
+17
746 mmHg
70%
4.8
m/s
SE
16 September, Tuesday. day, 24°; night, 14°; clear
17
+25
+14
17 September, wed
+25
+14
Feels like
+17
746 mmHg
69%
4.69
m/s
SE
17 September, Wednesday. day, 25°; night, 14°; clear
18
+25
+14
18 September, thu
+25
+14
Feels like
+17
745 mmHg
70%
4.69
m/s
SE
18 September, Thursday. day, 25°; night, 14°; clear
19
+25
+15
19 September, fri
+25
+15
Feels like
+18
744 mmHg
70%
5.5
m/s
S
19 September, Friday. day, 25°; night, 15°; rain
20
+25
+15
20 September, sat
+25
+15
Feels like
+18
744 mmHg
72%
5.1
m/s
S
20 September, Saturday. day, 25°; night, 15°; rain
21
+24
+15
21 September, sun
+24
+15
Feels like
+16
745 mmHg
69%
5.4
m/s
S
21 September, Sunday. day, 24°; night, 15°; partly cloudy
22
+23
+13
22 September, mon
+23
+13
Feels like
+15
745 mmHg
70%
5.4
m/s
S
22 September, Monday. day, 23°; night, 13°; overcast
23
+23
+13
23 September, tue
+23
+13
Feels like
+15
746 mmHg
69%
4.69
m/s
S
23 September, Tuesday. day, 23°; night, 13°; partly cloudy
24
+23
+13
24 September, wed
+23
+13
Feels like
+15
745 mmHg
68%
5.2
m/s
S
24 September, Wednesday. day, 23°; night, 13°; overcast
25
+23
+13
25 September, thu
+23
+13
Feels like
+15
744 mmHg
68%
5
m/s
S
25 September, Thursday. day, 23°; night, 13°; partly cloudy
26
+23
+13
26 September, fri
+23
+13
Feels like
+15
744 mmHg
68%
5.4
m/s
S
26 September, Friday. day, 23°; night, 13°; clear
27
+22
+13
27 September, sat
+22
+13
Feels like
+14
743 mmHg
69%
5.4
m/s
S
27 September, Saturday. day, 22°; night, 13°; clear
28
+21
+12
28 September, sun
+21
+12
Feels like
+13
744 mmHg
70%
5.5
m/s
S
28 September, Sunday. day, 21°; night, 12°; partly cloudy
29
+21
+11
29 September, mon
+21
+11
Feels like
+12
745 mmHg
69%
5.8
m/s
S
29 September, Monday. day, 21°; night, 11°; clear
30
+22
+12
30 September, tue
+22
+12
Feels like
+13
745 mmHg
66%
5.8
m/s
S
30 September, Tuesday. day, 22°; night, 12°; clear
1
+22
+11
1 October, wed
+22
+11
Feels like
+13
745 mmHg
67%
5.7
m/s
S
1 October, Wednesday. day, 22°; night, 11°; clear
2
+21
+12
2 October, thu
+21
+12
Feels like
+13
745 mmHg
69%
5.5
m/s
S
2 October, Thursday. day, 21°; night, 12°; rain
3
+20
+12
3 October, fri
+20
+12
Feels like
+13
745 mmHg
70%
5.6
m/s
S
3 October, Friday. day, 20°; night, 12°; partly cloudy
4
+20
+12
4 October, sat
+20
+12
Feels like
+12
746 mmHg
70%
5.6
m/s
S
4 October, Saturday. day, 20°; night, 12°; rain
Average data for 10 years
Ottawa September
13
sunny days
8
days with precipitation
4
cloudy days
13 sunny days; 8 days with precipitation; 4 cloudy days;
70
%
air humidity
3.4
m/s
Wind
S
75
mm of precipitation
(8% of annual average)
air humidity 70%; 75 millimeters of precipitation (8% of annual average); Wind southerly 3.4 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SE
S
S
S
S
S
S
S
SE
S
S
S
SW
S
S
SE
SE
SE
S
S
S
S
S
S
S
S
S
S
S
S
1
Average data for 10 years
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
30
Daytime temperature
Night-time temperature
Cities near you
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Dixon
Iowa City
Washington
Cities with similar weather in September
Suhum
Tbilisi
Burgas
Varna
Florence
Tivat
Kemer
Belgrade
Verona
