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September weather forecast in Santa Rosa
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
+18
+7
31 August, sun
+18
+7
Feels like
+8
677 mmHg
58%
2.7
m/s
SE
31 August, Sunday. day, 18°; night, 7°; clear
1
+18
+7
1 September, mon
+18
+7
Feels like
+8
677 mmHg
60%
2.6
m/s
S
1 September, Monday. day, 18°; night, 7°; clear
2
+18
+7
2 September, tue
+18
+7
Feels like
+8
677 mmHg
61%
2.6
m/s
S
2 September, Tuesday. day, 18°; night, 7°; partly cloudy
3
+17
+7
3 September, wed
+17
+7
Feels like
+8
677 mmHg
64%
2.7
m/s
SE
3 September, Wednesday. day, 17°; night, 7°; clear
4
+17
+6
4 September, thu
+17
+6
Feels like
+8
677 mmHg
63%
2.5
m/s
SE
4 September, Thursday. day, 17°; night, 6°; partly cloudy
5
+17
+7
5 September, fri
+17
+7
Feels like
+8
677 mmHg
64%
2.7
m/s
SE
5 September, Friday. day, 17°; night, 7°; rain
6
+19
+7
6 September, sat
+19
+7
Feels like
+9
676 mmHg
62%
2.8
m/s
SE
6 September, Saturday. day, 19°; night, 7°; clear
7
+20
+8
7 September, sun
+20
+8
Feels like
+10
674 mmHg
60%
2.8
m/s
S
7 September, Sunday. day, 20°; night, 8°; clear
8
+18
+8
8 September, mon
+18
+8
Feels like
+9
676 mmHg
58%
2.8
m/s
SE
8 September, Monday. day, 18°; night, 8°; rain
9
+19
+8
9 September, tue
+19
+8
Feels like
+9
676 mmHg
60%
2.7
m/s
SE
9 September, Tuesday. day, 19°; night, 8°; clear
10
+19
+7
10 September, wed
+19
+7
Feels like
+9
676 mmHg
61%
2.9
m/s
SE
10 September, Wednesday. day, 19°; night, 7°; clear
11
+18
+7
11 September, thu
+18
+7
Feels like
+9
677 mmHg
58%
2.9
m/s
SE
11 September, Thursday. day, 18°; night, 7°; clear
12
+18
+7
12 September, fri
+18
+7
Feels like
+8
677 mmHg
61%
2.8
m/s
SE
12 September, Friday. day, 18°; night, 7°; clear
13
+16
+7
13 September, sat
+16
+7
Feels like
+8
677 mmHg
62%
2.8
m/s
SE
13 September, Saturday. day, 16°; night, 7°; partly cloudy
14
+17
+6
14 September, sun
+17
+6
Feels like
+7
678 mmHg
61%
2.8
m/s
SE
14 September, Sunday. day, 17°; night, 6°; clear
15
+18
+6
15 September, mon
+18
+6
Feels like
+8
678 mmHg
58%
2.8
m/s
SE
15 September, Monday. day, 18°; night, 6°; clear
16
+19
+7
16 September, tue
+19
+7
Feels like
+9
677 mmHg
58%
2.8
m/s
SE
16 September, Tuesday. day, 19°; night, 7°; clear
17
+19
+8
17 September, wed
+19
+8
Feels like
+10
676 mmHg
58%
2.9
m/s
SE
17 September, Wednesday. day, 19°; night, 8°; clear
18
+20
+8
18 September, thu
+20
+8
Feels like
+10
676 mmHg
58%
3
m/s
SE
18 September, Thursday. day, 20°; night, 8°; clear
19
+19
+8
19 September, fri
+19
+8
Feels like
+9
676 mmHg
58%
3.2
m/s
SE
19 September, Friday. day, 19°; night, 8°; clear
20
+19
+7
20 September, sat
+19
+7
Feels like
+9
677 mmHg
58%
3
m/s
SE
20 September, Saturday. day, 19°; night, 7°; clear
21
+19
+8
21 September, sun
+19
+8
Feels like
+10
676 mmHg
60%
3
m/s
SE
21 September, Sunday. day, 19°; night, 8°; clear
22
+20
+8
22 September, mon
+20
+8
Feels like
+11
676 mmHg
60%
3
m/s
SE
22 September, Monday. day, 20°; night, 8°; clear
23
+19
+9
23 September, tue
+19
+9
Feels like
+11
677 mmHg
60%
2.8
m/s
SE
23 September, Tuesday. day, 19°; night, 9°; clear
24
+18
+8
24 September, wed
+18
+8
Feels like
+10
678 mmHg
64%
2.9
m/s
E
24 September, Wednesday. day, 18°; night, 8°; rain
25
+19
+8
25 September, thu
+19
+8
Feels like
+10
677 mmHg
65%
2.7
m/s
SE
25 September, Thursday. day, 19°; night, 8°; rain
26
+19
+9
26 September, fri
+19
+9
Feels like
+11
677 mmHg
65%
3.1
m/s
SE
26 September, Friday. day, 19°; night, 9°; rain
27
+19
+9
27 September, sat
+19
+9
Feels like
+11
677 mmHg
63%
3.1
m/s
SE
27 September, Saturday. day, 19°; night, 9°; rain
28
+19
+9
28 September, sun
+19
+9
Feels like
+11
677 mmHg
64%
2.7
m/s
SE
28 September, Sunday. day, 19°; night, 9°; rain
29
+19
+9
29 September, mon
+19
+9
Feels like
+11
677 mmHg
65%
3
m/s
SE
29 September, Monday. day, 19°; night, 9°; rain
30
+21
+9
30 September, tue
+21
+9
Feels like
+12
676 mmHg
63%
3
m/s
SE
30 September, Tuesday. day, 21°; night, 9°; clear
1
+20
+10
1 October, wed
+20
+10
Feels like
+12
676 mmHg
62%
3.1
m/s
SE
1 October, Wednesday. day, 20°; night, 10°; clear
2
+19
+9
2 October, thu
+19
+9
Feels like
+11
676 mmHg
66%
3
m/s
SE
2 October, Thursday. day, 19°; night, 9°; clear
3
+19
+9
3 October, fri
+19
+9
Feels like
+11
676 mmHg
68%
3.1
m/s
SE
3 October, Friday. day, 19°; night, 9°; rain
4
+20
+9
4 October, sat
+20
+9
Feels like
+11
676 mmHg
66%
3.2
m/s
SE
4 October, Saturday. day, 20°; night, 9°; partly cloudy
Average data for 10 years
Santa Rosa September
19
sunny days
8
days with precipitation
3
cloudy days
19 sunny days; 8 days with precipitation; 3 cloudy days;
61
%
air humidity
1.8
m/s
Wind
SE
48
mm of precipitation
(4% of annual average)
air humidity 61%; 48 millimeters of precipitation (4% of annual average); Wind south-easterly 1.8 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
S
S
SE
SE
SE
SE
S
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
SE
E
SE
SE
SE
SE
SE
SE
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
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