Ottawa monthly weather forecast

Monthly weather forecast for Ottawa. ℃ Average temperatures % Humidity, precipitation ️ Sunrise and sunset ️ Wind direction and speed

31 August 2026, Monday
+12°C / +21°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
2.6
95%
1011
01:00
+15°C
2.6
97%
1011
02:00
+15°C
4.1
98%
1011
03:00
+14°C
4.4
97%
1011
04:00
+13°C
4.4
93%
1011
05:00
+13°C
6
92%
1011
06:00
+12°C
4.9
91%
1011
07:00
+12°C
4
89%
1012
08:00
+13°C
6.6
85%
1012
09:00
+14°C
5.4
87%
1012
10:00
+15°C
5.8
93%
1012
11:00
+16°C
5.2
95%
1012
12:00
+17°C
6.3
93%
1012
13:00
+18°C
4.3
91%
1011
14:00
+20°C
4.3
84%
1011
15:00
+21°C
3.4
79%
1011
16:00
+21°C
4
78%
1010
17:00
+21°C
3
82%
1009
18:00
+20°C
2.8
82%
1009
19:00
+20°C
2.5
83%
1009
20:00
+19°C
3.4
83%
1009
21:00
+19°C
4.9
90%
1008
22:00
+19°C
2.5
91%
1008
23:00
+19°C
7.2
87%
1008
01 September 2026, Tuesday
+15°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+19°C
4.7
88%
1007
01:00
+18°C
7.8
86%
1007
02:00
+18°C
10.5
81%
1007
03:00
+18°C
2.8
88%
1007
04:00
+17°C
9
87%
1007
05:00
+16°C
14.2
89%
1007
06:00
+15°C
10.8
86%
1006
07:00
+15°C
14.6
84%
1006
08:00
+15°C
11.2
83%
1006
09:00
+15°C
13.8
83%
1006
10:00
+15°C
15
82%
1006
11:00
+16°C
13.5
82%
1006
12:00
+17°C
12.1
81%
1006
13:00
+19°C
16.8
73%
1006
14:00
+18°C
12.5
75%
1006
15:00
+18°C
12
72%
1006
16:00
+18°C
8.3
77%
1006
17:00
+19°C
6.4
79%
1005
18:00
+19°C
4
83%
1005
19:00
+18°C
4.8
83%
1006
20:00
+18°C
5.4
84%
1006
21:00
+18°C
1.4
86%
1006
22:00
+18°C
5.2
86%
1006
23:00
+17°C
6.8
86%
1006
02 September 2026, Wednesday
+14°C / +21°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
7
82%
1007
01:00
+16°C
7.2
79%
1007
02:00
+15°C
7.8
81%
1008
03:00
+14°C
7.6
85%
1009
04:00
+14°C
6.8
89%
1009
05:00
+14°C
8.1
93%
1009
06:00
+14°C
7.3
97%
1009
07:00
+15°C
7.3
99%
1009
08:00
+17°C
9.5
92%
1009
09:00
+18°C
9.8
90%
1009
10:00
+19°C
7.9
87%
1010
11:00
+20°C
2.3
84%
1010
12:00
+20°C
1.3
86%
1010
13:00
+21°C
5.8
82%
1009
14:00
+21°C
7.6
83%
1009
15:00
+21°C
9
91%
1007
16:00
+20°C
10.4
95%
1006
17:00
+19°C
12.2
99%
1006
18:00
+19°C
10.4
98%
1006
19:00
+18°C
13.8
98%
1005
20:00
+18°C
14.4
99%
1006
21:00
+17°C
16.2
98%
1005
22:00
+17°C
17.2
98%
1004
23:00
+18°C
18.4
98%
1003
03 September 2026, Thursday
+16°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
14.7
98%
1003
01:00
+17°C
12.1
99%
1003
02:00
+17°C
11.2
99%
1002
03:00
+17°C
10.8
99%
1001
04:00
+17°C
9.5
99%
1001
05:00
+17°C
9.3
99%
1001
06:00
+17°C
9.7
99%
1000
07:00
+17°C
8.5
99%
1001
08:00
+17°C
6.7
99%
1001
09:00
+17°C
6.5
98%
1001
10:00
+18°C
7
98%
1001
11:00
+18°C
6.9
96%
1002
12:00
+19°C
5.4
95%
1002
13:00
+19°C
5
93%
1002
14:00
+19°C
5.5
92%
1002
15:00
+21°C
7.2
86%
1002
16:00
+22°C
9.7
80%
1002
17:00
+21°C
9.6
82%
1002
18:00
+21°C
7.9
82%
1002
19:00
+20°C
7.9
90%
1002
20:00
+18°C
7.3
98%
1002
21:00
+17°C
6
99%
1003
22:00
+16°C
5
99%
1003
23:00
+16°C
4.8
99%
1004
04 September 2026, Friday
+15°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
5.2
98%
1003
01:00
+15°C
4
98%
1003
02:00
+16°C
2.5
96%
1003
03:00
+16°C
3.8
95%
1003
04:00
+15°C
4.5
98%
1003
05:00
+15°C
5.4
99%
1003
06:00
+15°C
5
98%
1004
07:00
+15°C
6.8
97%
1004
08:00
+16°C
7.4
90%
1004
09:00
+18°C
10.9
80%
1004
10:00
+19°C
12.9
74%
1004
11:00
+18°C
13.4
76%
1004
12:00
+19°C
13.4
74%
1005
13:00
+20°C
14.3
69%
1004
14:00
+21°C
12.9
64%
1004
15:00
+22°C
15.6
69%
1004
16:00
+19°C
14.5
88%
1005
17:00
+19°C
15
86%
1004
18:00
+19°C
15
88%
1004
19:00
+18°C
14
91%
1005
20:00
+16°C
11.4
93%
1005
21:00
+16°C
8.9
94%
1005
22:00
+16°C
6.5
94%
1006
23:00
+16°C
5.5
95%
1006
05 September 2026, Saturday
+15°C / +22°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
5.1
96%
1006
01:00
+15°C
5.3
97%
1007
02:00
+15°C
5
98%
1007
03:00
+15°C
4.3
98%
1007
04:00
+15°C
3.6
98%
1008
05:00
+15°C
3.4
98%
1008
06:00
+15°C
3.7
98%
1009
07:00
+15°C
3.7
97%
1010
08:00
+15°C
4.5
97%
1010
09:00
+15°C
6.3
98%
1011
10:00
+15°C
8.4
98%
1011
11:00
+15°C
9.7
95%
1011
12:00
+17°C
10.1
84%
1011
13:00
+19°C
10.3
69%
1011
14:00
+21°C
10
58%
1011
15:00
+22°C
7
56%
1011
16:00
+22°C
1.8
58%
1011
17:00
+22°C
1.9
62%
1011
18:00
+21°C
4
68%
1012
19:00
+19°C
5.8
75%
1012
20:00
+17°C
6.5
80%
1013
21:00
+16°C
6.2
82%
1013
22:00
+16°C
5.4
82%
1013
23:00
+15°C
5
82%
1013
06 September 2026, Sunday
+13°C / +25°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+15°C
5
84%
1014
01:00
+14°C
5.2
86%
1014
02:00
+14°C
5.5
87%
1014
03:00
+14°C
5.8
87%
1014
04:00
+13°C
6.1
87%
1015
05:00
+13°C
6.6
86%
1015
06:00
+13°C
6.4
84%
1016
07:00
+14°C
6.4
81%
1016
08:00
+15°C
6
77%
1016
09:00
+17°C
5.7
71%
1016
10:00
+19°C
5.4
63%
1016
11:00
+21°C
4.9
57%
1015
12:00
+23°C
5
52%
1015
13:00
+24°C
5.5
47%
1014
14:00
+25°C
5.9
45%
1014
15:00
+25°C
6.9
46%
1013
16:00
+25°C
9.5
50%
1012
17:00
+24°C
10.8
54%
1012
18:00
+23°C
10.3
58%
1012
19:00
+21°C
8.8
62%
1012
20:00
+19°C
7.9
65%
1012
21:00
+18°C
7.3
66%
1012
22:00
+18°C
6.9
66%
1012
23:00
+17°C
7.1
67%
1012
07 September 2026, Monday
+15°C / +24°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+17°C
7.1
69%
1012
01:00
+17°C
6.5
71%
1011
02:00
+17°C
6.4
73%
1011
03:00
+16°C
6.7
75%
1011
04:00
+16°C
7.3
76%
1011
05:00
+15°C
7.6
77%
1011
06:00
+15°C
7.4
78%
1011
07:00
+15°C
7.7
79%
1011
08:00
+16°C
8.4
77%
1010
09:00
+17°C
9.7
71%
1010
10:00
+19°C
11.2
63%
1009
11:00
+20°C
12.5
56%
1009
12:00
+22°C
14.1
51%
1008
13:00
+23°C
15.5
48%
1008
14:00
+24°C
16.1
47%
1007
15:00
+24°C
14
50%
1006
16:00
+24°C
10.6
55%
1006
17:00
+23°C
7.4
60%
1005
18:00
+22°C
4.1
65%
1005
19:00
+20°C
2.3
69%
1005
20:00
+19°C
3.3
75%
1005
21:00
+18°C
4.2
83%
1005
22:00
+17°C
6.1
91%
1005
23:00
+16°C
7.7
97%
1004
08 September 2026, Tuesday
+13°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
8
98%
1004
01:00
+16°C
8.2
96%
1003
02:00
+16°C
9
95%
1003
03:00
+16°C
10.2
95%
1002
04:00
+16°C
11.5
96%
1002
05:00
+16°C
12
97%
1002
06:00
+16°C
11.6
97%
1002
07:00
+16°C
10.6
97%
1002
08:00
+16°C
10.2
96%
1002
09:00
+17°C
10.7
95%
1002
10:00
+17°C
11.6
94%
1001
11:00
+17°C
11.9
92%
1001
12:00
+17°C
11
91%
1001
13:00
+16°C
11.7
89%
1001
14:00
+16°C
12.8
86%
1001
15:00
+17°C
13.4
80%
1001
16:00
+19°C
13.2
74%
1001
17:00
+20°C
11.9
70%
1001
18:00
+19°C
9.2
73%
1001
19:00
+17°C
6.6
79%
1002
20:00
+16°C
5.8
82%
1002
21:00
+15°C
4.2
78%
1002
22:00
+14°C
5.2
71%
1003
23:00
+13°C
7.6
66%
1003
09 September 2026, Wednesday
+9°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+12°C
8.4
65%
1004
01:00
+11°C
8.1
66%
1004
02:00
+11°C
7.4
68%
1005
03:00
+10°C
6.8
70%
1005
04:00
+9°C
5.6
72%
1005
05:00
+9°C
5.2
73%
1005
06:00
+9°C
5.4
73%
1006
07:00
+10°C
5.6
73%
1006
08:00
+10°C
6.1
70%
1007
09:00
+12°C
6.9
64%
1007
10:00
+14°C
7.6
56%
1007
11:00
+16°C
7.7
50%
1007
12:00
+17°C
6.7
46%
1006
13:00
+19°C
5.6
43%
1006
14:00
+19°C
4.5
42%
1005
15:00
+20°C
4
41%
1005
16:00
+20°C
4.2
42%
1005
17:00
+19°C
4.6
44%
1005
18:00
+18°C
5.7
50%
1005
19:00
+16°C
7.6
57%
1004
20:00
+15°C
8.6
63%
1004
21:00
+14°C
8
65%
1004
22:00
+14°C
7
66%
1004
23:00
+14°C
6.4
66%
1004
10 September 2026, Thursday
+11°C / +23°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+14°C
5.8
66%
1003
01:00
+13°C
5.9
66%
1003
02:00
+13°C
6.2
66%
1002
03:00
+12°C
6.6
67%
1002
04:00
+11°C
7.2
69%
1001
05:00
+11°C
7.6
70%
1000
06:00
+11°C
8.4
71%
999
07:00
+11°C
9.7
72%
998
08:00
+13°C
9.4
72%
997
09:00
+15°C
6.7
70%
996
10:00
+18°C
9.4
68%
995
11:00
+20°C
12.6
68%
994
12:00
+20°C
11
75%
994
13:00
+19°C
7.5
84%
994
14:00
+19°C
6.5
89%
994
15:00
+20°C
9.3
84%
994
16:00
+22°C
12.7
75%
994
17:00
+23°C
14.1
70%
994
18:00
+21°C
10.3
73%
995
19:00
+19°C
3.8
80%
995
20:00
+18°C
2.3
86%
995
21:00
+17°C
5.4
88%
995
22:00
+17°C
9.2
88%
996
23:00
+17°C
12.5
87%
996
11 September 2026, Friday
+11°C / +20°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+16°C
14.1
85%
996
01:00
+15°C
14.9
81%
996
02:00
+15°C
15.2
78%
996
03:00
+14°C
14.8
76%
996
04:00
+13°C
13.9
75%
996
05:00
+13°C
13.4
74%
996
06:00
+13°C
13.4
75%
996
07:00
+13°C
14
76%
997
08:00
+14°C
14.9
75%
997
09:00
+15°C
17.6
69%
997
10:00
+17°C
21.3
61%
997
11:00
+19°C
23.9
55%
997
12:00
+19°C
23.8
51%
997
13:00
+20°C
22.4
49%
997
14:00
+20°C
21.2
48%
997
15:00
+20°C
19.8
48%
997
16:00
+20°C
17.6
50%
997
17:00
+19°C
15.5
52%
997
18:00
+18°C
13.1
56%
998
19:00
+16°C
11.2
61%
998
20:00
+15°C
10.3
65%
999
21:00
+13°C
10.3
67%
999
22:00
+12°C
10.8
68%
999
23:00
+11°C
11.2
69%
1000
12 September 2026, Saturday
+9°C / +15°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+11°C
10.9
69%
1000
01:00
+11°C
10
68%
1000
02:00
+11°C
9.8
69%
1000
03:00
+10°C
10
72%
1000
04:00
+9°C
10.6
76%
1001
05:00
+9°C
11.3
79%
1001
06:00
+9°C
12.2
80%
1002
07:00
+9°C
13.2
79%
1003
08:00
+10°C
14.6
76%
1003
09:00
+11°C
16.1
71%
1004
10:00
+12°C
17.4
63%
1004
11:00
+13°C
18.9
57%
1004
12:00
+14°C
20.4
52%
1005
13:00
+15°C
22
48%
1005
14:00
+15°C
22.6
46%
1005
15:00
+15°C
21.1
47%
1005
16:00
+15°C
18.4
49%
1006
17:00
+15°C
15.5
52%
1006
18:00
+14°C
12.2
54%
1007
19:00
+13°C
9.1
56%
1007
20:00
+12°C
6.6
59%
1008
21:00
+11°C
5.6
63%
1008
22:00
+10°C
7.1
67%
1009
23:00
+9°C
8.7
70%
1009
13 September 2026, Sunday
+7°C / +19°C
Hour
Temperature
Wind (km/h)
Humidity
Weather
Pressure
00:00
+9°C
9.1
70%
1009
01:00
+9°C
9.4
69%
1010
02:00
+8°C
9.7
69%
1010
03:00
+8°C
9.8
70%
1010
04:00
+7°C
10
71%
1011
05:00
+7°C
10
72%
1012
06:00
+7°C
10.2
72%
1012
07:00
+7°C
10.2
71%
1013
08:00
+8°C
10.7
69%
1013
09:00
+10°C
11.5
63%
1014
10:00
+13°C
12.3
55%
1014
11:00
+15°C
13
49%
1014
12:00
+16°C
12.9
45%
1014
13:00
+17°C
11.9
42%
1014
14:00
+18°C
11
40%
1013
15:00
+19°C
10.2
38%
1013
16:00
+19°C
8.7
38%
1012
17:00
+19°C
7.4
40%
1012
18:00
+17°C
5.6
47%
1013
19:00
+15°C
4.2
57%
1013
20:00
+13°C
3.3
64%
1013
21:00
+12°C
2.3
66%
1013
22:00
+12°C
1.3
66%
1013
23:00
+11°C
1.1
66%
1013


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