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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
August
+18
+14
21 August, wed
+18
+14
Feels like
+14
757 mmHg
79%
4
m/s
NW
Climate normal
+21
+17
21 August, Wednesday. day, 18°; night, 14°; rain
22
+23
+15
22 August, thu
+23
+15
Feels like
+18
759 mmHg
61%
4.2
m/s
NW
Climate normal
+22
+17
22 August, Thursday. day, 23°; night, 15°; light rain
23
+26
+16
23 August, fri
+26
+16
Feels like
+22
760 mmHg
58%
4.2
m/s
SW
Climate normal
+23
+17
23 August, Friday. day, 26°; night, 16°; mostly clear
24
+26
+17
24 August, sat
+26
+17
Feels like
+21
760 mmHg
67%
4.6
m/s
SW
Climate normal
+23
+17
24 August, Saturday. day, 26°; night, 17°; light rain
25
+26
+17
25 August, sun
+26
+17
Feels like
+23
758 mmHg
72%
3.2
m/s
W
Climate normal
+21
+17
25 August, Sunday. day, 26°; night, 17°; rain
26
+26
+17
26 August, mon
+26
+17
Feels like
+24
758 mmHg
71%
2.3
m/s
E
Climate normal
+22
+16
26 August, Monday. day, 26°; night, 17°; mostly clear
27
+27
+18
27 August, tue
+27
+18
Feels like
+25
757 mmHg
71%
2.5
m/s
E
Climate normal
+21
+17
27 August, Tuesday. day, 27°; night, 18°; partly cloudy
28
+26
+18
28 August, wed
+26
+18
Feels like
+24
756 mmHg
72%
2.4
m/s
S
Climate normal
+21
+16
28 August, Wednesday. day, 26°; night, 18°; partly cloudy
29
+26
+18
29 August, thu
+26
+18
Feels like
+26
754 mmHg
77%
2.9
m/s
SW
Climate normal
+22
+16
29 August, Thursday. day, 26°; night, 18°; partly cloudy
30
+25
+16
30 August, fri
+25
+16
Feels like
+21
753 mmHg
73%
4.2
m/s
SW
Climate normal
+22
+17
30 August, Friday. day, 25°; night, 16°; heavy rain
31
+25
+18
31 August, sat
+25
+18
Feels like
+21
755 mmHg
70%
4
m/s
SW
Climate normal
+23
+18
31 August, Saturday. day, 25°; night, 18°; partly cloudy
1 September
+26
+17
1 September, sun
+26
+17
Feels like
+21
755 mmHg
69%
3.6
m/s
W
Climate normal
+23
+17
1 September, Sunday. day, 26°; night, 17°; partly cloudy
2
+25
+14
2 September, mon
+25
+14
Feels like
+17
753 mmHg
76%
4.6
m/s
S
Climate normal
+22
+17
2 September, Monday. day, 25°; night, 14°; light rain
3
+21
+17
3 September, tue
+21
+17
Feels like
+17
746 mmHg
87%
1.6
m/s
S
Climate normal
+22
+16
3 September, Tuesday. day, 21°; night, 17°; mostly clear
4
+23
+18
4 September, wed
+23
+18
Feels like
+19
744 mmHg
86%
5.5
m/s
S
Climate normal
+20
+17
4 September, Wednesday. day, 23°; night, 18°; light rain
5
+21
+14
5 September, thu
+21
+14
Feels like
+19
746 mmHg
93%
2.2
m/s
SW
Climate normal
+21
+15
5 September, Thursday. day, 21°; night, 14°; light rain
6
+13
+7
6 September, fri
+13
+7
Feels like
+4
752 mmHg
73%
6.9
m/s
N
Climate normal
+21
+16
6 September, Friday. day, 13°; night, 7°; light rain
7
+15
+13
7 September, sat
+15
+13
Feels like
+7
752 mmHg
78%
3.3
m/s
E
Climate normal
+20
+16
7 September, Saturday. day, 15°; night, 13°; clear
8
+19
+16
8 September, sun
+19
+16
Feels like
+15
746 mmHg
88%
4.6
m/s
S
Climate normal
+20
+15
8 September, Sunday. day, 19°; night, 16°; light rain
9
+16
+4
9 September, mon
+16
+4
Feels like
+10
744 mmHg
78%
5.3
m/s
NW
Climate normal
+19
+14
9 September, Monday. day, 16°; night, 4°; rain
10
+14
+13
10 September, tue
+14
+13
Feels like
+7
748 mmHg
66%
4
m/s
SW
Climate normal
+20
+15
10 September, Tuesday. day, 14°; night, 13°; clear
11
+18
+11
11 September, wed
+18
+11
Feels like
+13
744 mmHg
77%
3.1
m/s
NW
Climate normal
+18
+14
11 September, Wednesday. day, 18°; night, 11°; partly cloudy
12
+14
+5
12 September, thu
+14
+5
Feels like
+5
753 mmHg
68%
3.2
m/s
SW
Climate normal
+18
+14
12 September, Thursday. day, 14°; night, 5°; clear
13
+15
+4
13 September, fri
+15
+4
Feels like
+8
756 mmHg
77%
2.2
m/s
SW
Climate normal
+19
+12
13 September, Friday. day, 15°; night, 4°; mostly clear
14
+19
+14
14 September, sat
+19
+14
Feels like
+12
753 mmHg
77%
2.4
m/s
E
Climate normal
+18
+14
14 September, Saturday. day, 19°; night, 14°; clear
15
+18
+18
15 September, sun
+18
+18
Feels like
+15
747 mmHg
95%
5.6
m/s
S
Climate normal
+15
+13
15 September, Sunday. day, 18°; night, 18°; rain
16
+23
+19
16 September, mon
+23
+19
Feels like
+20
741 mmHg
83%
5.4
m/s
S
Climate normal
+17
+10
16 September, Monday. day, 23°; night, 19°; partly cloudy
17
+19
+12
17 September, tue
+19
+12
Feels like
+13
733 mmHg
86%
8.4
m/s
SW
Climate normal
+18
+12
17 September, Tuesday. day, 19°; night, 12°; rain
18
+9
+4
18 September, wed
+9
+4
Feels like
+1
744 mmHg
72%
7.7
m/s
NW
Climate normal
+18
+12
18 September, Wednesday. day, 9°; night, 4°; light rain
19
+15
+13
19 September, thu
+15
+13
Feels like
+8
750 mmHg
72%
4.9
m/s
SW
Climate normal
+19
+12
19 September, Thursday. day, 15°; night, 13°; mostly clear
Average data for 10 years
Next, the average data for 10 years
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
10
sunny days
13
days with precipitation
7
cloudy days
10 sunny days; 13 days with precipitation; 7 cloudy days;
76
%
air humidity
4.1
m/s
Wind
SW
25
mm of precipitation
(3% of annual average)
air humidity 76%; 25 millimeters of precipitation (3% of annual average); Wind south-westerly 4.1 Meters per second
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
NW
NW
SW
SW
W
E
E
S
SW
SW
SW
W
S
S
S
SW
N
E
S
NW
SW
NW
SW
SW
E
S
S
SW
NW
SW
21
Average data for 10 years
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
18
19
Daytime temperature
Night-time temperature