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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
August
+18
+13
28 August, wed
+18
+13
Feels like
+14
758 mmHg
61%
5.6
m/s
N
Climate normal
+21
+16
28 August, Wednesday. day, 18°; night, 13°; partly cloudy
29
+21
+13
29 August, thu
+21
+13
Feels like
+16
764 mmHg
56%
4.1
m/s
E
Climate normal
+22
+16
29 August, Thursday. day, 21°; night, 13°; clear
30
+23
+20
30 August, fri
+23
+20
Feels like
+19
760 mmHg
77%
4.5
m/s
E
Climate normal
+22
+17
30 August, Friday. day, 23°; night, 20°; light rain
31
+25
+16
31 August, sat
+25
+16
Feels like
+21
752 mmHg
83%
4.4
m/s
SW
Climate normal
+23
+18
31 August, Saturday. day, 25°; night, 16°; thunderstorm with rain
1 September
+24
+11
1 September, sun
+24
+11
Feels like
+16
749 mmHg
70%
7.4
m/s
SW
Climate normal
+23
+17
1 September, Sunday. day, 24°; night, 11°; rain
2
+18
+9
2 September, mon
+18
+9
Feels like
+10
757 mmHg
52%
5.9
m/s
NW
Climate normal
+22
+17
2 September, Monday. day, 18°; night, 9°; light rain
3
+22
+10
3 September, tue
+22
+10
Feels like
+14
761 mmHg
52%
4.6
m/s
W
Climate normal
+22
+16
3 September, Tuesday. day, 22°; night, 10°; partly cloudy
4
+24
+13
4 September, wed
+24
+13
Feels like
+18
761 mmHg
58%
3.9
m/s
SW
Climate normal
+20
+17
4 September, Wednesday. day, 24°; night, 13°; mostly clear
5
+25
+14
5 September, thu
+25
+14
Feels like
+20
760 mmHg
65%
3
m/s
SW
Climate normal
+21
+15
5 September, Thursday. day, 25°; night, 14°; clear
6
+25
+14
6 September, fri
+25
+14
Feels like
+19
757 mmHg
67%
4.4
m/s
S
Climate normal
+21
+16
6 September, Friday. day, 25°; night, 14°; clear
7
+23
+15
7 September, sat
+23
+15
Feels like
+18
754 mmHg
68%
4.2
m/s
W
Climate normal
+20
+16
7 September, Saturday. day, 23°; night, 15°; partly cloudy
8
+23
+16
8 September, sun
+23
+16
Feels like
+17
755 mmHg
67%
3.7
m/s
NW
Climate normal
+20
+15
8 September, Sunday. day, 23°; night, 16°; partly cloudy
9
+19
+10
9 September, mon
+19
+10
Feels like
+15
755 mmHg
66%
3.5
m/s
E
Climate normal
+19
+14
9 September, Monday. day, 19°; night, 10°; mostly clear
10
+22
+9
10 September, tue
+22
+9
Feels like
+16
751 mmHg
77%
1.1
m/s
NW
Climate normal
+20
+15
10 September, Tuesday. day, 22°; night, 9°; clear
11
+23
+12
11 September, wed
+23
+12
Feels like
+16
746 mmHg
75%
1.9
m/s
NW
Climate normal
+18
+14
11 September, Wednesday. day, 23°; night, 12°; clear
12
+21
+13
12 September, thu
+21
+13
Feels like
+17
748 mmHg
79%
3.6
m/s
NE
Climate normal
+18
+14
12 September, Thursday. day, 21°; night, 13°; mostly clear
13
+22
+15
13 September, fri
+22
+15
Feels like
+17
751 mmHg
84%
2
m/s
SE
Climate normal
+19
+12
13 September, Friday. day, 22°; night, 15°; mostly clear
14
+22
+19
14 September, sat
+22
+19
Feels like
+18
748 mmHg
86%
4.8
m/s
S
Climate normal
+18
+14
14 September, Saturday. day, 22°; night, 19°; light rain
15
+20
+12
15 September, sun
+20
+12
Feels like
+14
749 mmHg
74%
5
m/s
W
Climate normal
+15
+13
15 September, Sunday. day, 20°; night, 12°; mostly clear
16
+22
+18
16 September, mon
+22
+18
Feels like
+18
748 mmHg
76%
3.5
m/s
SW
Climate normal
+17
+10
16 September, Monday. day, 22°; night, 18°; mostly clear
17
+19
+16
17 September, tue
+19
+16
Feels like
+15
743 mmHg
79%
6.3
m/s
W
Climate normal
+18
+12
17 September, Tuesday. day, 19°; night, 16°; rain
18
+15
+15
18 September, wed
+15
+15
Feels like
+9
745 mmHg
69%
6.1
m/s
W
Climate normal
+18
+12
18 September, Wednesday. day, 15°; night, 15°; partly cloudy
19
+14
+8
19 September, thu
+14
+8
Feels like
+9
741 mmHg
86%
6.4
m/s
W
Climate normal
+19
+12
19 September, Thursday. day, 14°; night, 8°; light rain
20
+13
+9
20 September, fri
+13
+9
Feels like
+6
741 mmHg
63%
4.3
m/s
N
Climate normal
+19
+14
20 September, Friday. day, 13°; night, 9°; mostly clear
21
+11
+9
21 September, sat
+11
+9
Feels like
+6
739 mmHg
88%
5.3
m/s
NW
Climate normal
+18
+14
21 September, Saturday. day, 11°; night, 9°; light rain
22
+10
+10
22 September, sun
+10
+10
Feels like
+4
738 mmHg
92%
6.2
m/s
W
Climate normal
+18
+13
22 September, Sunday. day, 10°; night, 10°; light rain
23
+12
+11
23 September, mon
+12
+11
Feels like
+5
740 mmHg
78%
8
m/s
NW
Climate normal
+18
+12
23 September, Monday. day, 12°; night, 11°; light rain
24
+15
+11
24 September, tue
+15
+11
Feels like
+10
745 mmHg
81%
3
m/s
NW
Climate normal
+18
+13
24 September, Tuesday. day, 15°; night, 11°; partly cloudy
25
+16
+7
25 September, wed
+16
+7
Feels like
+11
747 mmHg
76%
1.9
m/s
N
Climate normal
+18
+13
25 September, Wednesday. day, 16°; night, 7°; partly cloudy
26
+18
+8
26 September, thu
+18
+8
Feels like
+10
749 mmHg
82%
1.3
m/s
SW
Climate normal
+20
+14
26 September, Thursday. day, 18°; night, 8°; clear
Average data for 10 years
Next, the average data for 10 years
27
+18
+14
27 September, fri
+18
+14
Feels like
+16
749 mmHg
76%
5.1
m/s
S
27 September, Friday. day, 18°; night, 14°; rain
28
+17
+14
28 September, sat
+17
+14
Feels like
+15
749 mmHg
79%
5.5
m/s
S
28 September, Saturday. day, 17°; night, 14°; partly cloudy
Average for 30 days
14
sunny days
9
days with precipitation
7
cloudy days
14 sunny days; 9 days with precipitation; 7 cloudy days;
73
%
air humidity
4.3
m/s
Wind
W
13
mm of precipitation
(2% of annual average)
air humidity 73%; 13 millimeters of precipitation (2% of annual average); Wind westerly 4.3 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
N
E
E
SW
SW
NW
W
SW
SW
S
W
NW
E
NW
NW
NE
SE
S
W
SW
W
W
W
N
NW
W
NW
NW
N
SW
28
Average data for 10 years
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
22
23
24
25
26
Daytime temperature
Night-time temperature