10 day forecast
Monthly forecast
Weather map
City or area
Find
Sign up
Log in
Go to comparison
September weather forecast in Cupertino
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
+24
+14
31 August, sun
+24
+14
Feels like
+17
746 mmHg
76%
3.6
m/s
W
31 August, Sunday. day, 24°; night, 14°; clear
1
+24
+14
1 September, mon
+24
+14
Feels like
+17
745 mmHg
74%
3.6
m/s
W
1 September, Monday. day, 24°; night, 14°; clear
2
+24
+14
2 September, tue
+24
+14
Feels like
+18
746 mmHg
73%
3.5
m/s
W
2 September, Tuesday. day, 24°; night, 14°; clear
3
+24
+14
3 September, wed
+24
+14
Feels like
+18
746 mmHg
73%
3.5
m/s
W
3 September, Wednesday. day, 24°; night, 14°; clear
4
+23
+14
4 September, thu
+23
+14
Feels like
+17
746 mmHg
75%
3.8
m/s
W
4 September, Thursday. day, 23°; night, 14°; clear
5
+25
+14
5 September, fri
+25
+14
Feels like
+17
746 mmHg
73%
3.8
m/s
W
5 September, Friday. day, 25°; night, 14°; clear
6
+25
+14
6 September, sat
+25
+14
Feels like
+18
746 mmHg
71%
3.5
m/s
W
6 September, Saturday. day, 25°; night, 14°; clear
7
+25
+14
7 September, sun
+25
+14
Feels like
+18
746 mmHg
71%
3.4
m/s
W
7 September, Sunday. day, 25°; night, 14°; clear
8
+24
+14
8 September, mon
+24
+14
Feels like
+17
746 mmHg
73%
3.7
m/s
W
8 September, Monday. day, 24°; night, 14°; clear
9
+23
+14
9 September, tue
+23
+14
Feels like
+17
745 mmHg
75%
3.7
m/s
W
9 September, Tuesday. day, 23°; night, 14°; partly cloudy
10
+23
+14
10 September, wed
+23
+14
Feels like
+17
746 mmHg
75%
3.6
m/s
W
10 September, Wednesday. day, 23°; night, 14°; clear
11
+24
+14
11 September, thu
+24
+14
Feels like
+17
747 mmHg
75%
3.5
m/s
W
11 September, Thursday. day, 24°; night, 14°; clear
12
+23
+14
12 September, fri
+23
+14
Feels like
+17
747 mmHg
76%
3.6
m/s
W
12 September, Friday. day, 23°; night, 14°; partly cloudy
13
+23
+14
13 September, sat
+23
+14
Feels like
+17
746 mmHg
76%
3.6
m/s
W
13 September, Saturday. day, 23°; night, 14°; partly cloudy
14
+22
+14
14 September, sun
+22
+14
Feels like
+16
746 mmHg
78%
3.7
m/s
W
14 September, Sunday. day, 22°; night, 14°; partly cloudy
15
+21
+13
15 September, mon
+21
+13
Feels like
+16
747 mmHg
79%
4.1
m/s
W
15 September, Monday. day, 21°; night, 13°; partly cloudy
16
+21
+13
16 September, tue
+21
+13
Feels like
+15
747 mmHg
78%
4.1
m/s
W
16 September, Tuesday. day, 21°; night, 13°; partly cloudy
17
+22
+13
17 September, wed
+22
+13
Feels like
+16
747 mmHg
77%
4.1
m/s
W
17 September, Wednesday. day, 22°; night, 13°; partly cloudy
18
+23
+14
18 September, thu
+23
+14
Feels like
+17
746 mmHg
75%
4
m/s
W
18 September, Thursday. day, 23°; night, 14°; rain
19
+24
+14
19 September, fri
+24
+14
Feels like
+17
746 mmHg
74%
3.8
m/s
SW
19 September, Friday. day, 24°; night, 14°; clear
20
+24
+14
20 September, sat
+24
+14
Feels like
+17
746 mmHg
73%
3.6
m/s
SW
20 September, Saturday. day, 24°; night, 14°; clear
21
+24
+14
21 September, sun
+24
+14
Feels like
+17
746 mmHg
72%
3.6
m/s
SW
21 September, Sunday. day, 24°; night, 14°; clear
22
+23
+13
22 September, mon
+23
+13
Feels like
+17
746 mmHg
74%
3.5
m/s
W
22 September, Monday. day, 23°; night, 13°; clear
23
+24
+13
23 September, tue
+24
+13
Feels like
+17
747 mmHg
74%
3.3
m/s
W
23 September, Tuesday. day, 24°; night, 13°; clear
24
+24
+14
24 September, wed
+24
+14
Feels like
+17
747 mmHg
73%
3.4
m/s
W
24 September, Wednesday. day, 24°; night, 14°; clear
25
+24
+14
25 September, thu
+24
+14
Feels like
+17
747 mmHg
72%
3.3
m/s
SW
25 September, Thursday. day, 24°; night, 14°; clear
26
+24
+14
26 September, fri
+24
+14
Feels like
+17
747 mmHg
73%
3.4
m/s
W
26 September, Friday. day, 24°; night, 14°; clear
27
+24
+14
27 September, sat
+24
+14
Feels like
+17
747 mmHg
73%
3.4
m/s
W
27 September, Saturday. day, 24°; night, 14°; clear
28
+23
+14
28 September, sun
+23
+14
Feels like
+17
746 mmHg
72%
3.5
m/s
SW
28 September, Sunday. day, 23°; night, 14°; partly cloudy
29
+23
+13
29 September, mon
+23
+13
Feels like
+16
747 mmHg
74%
3.6
m/s
W
29 September, Monday. day, 23°; night, 13°; partly cloudy
30
+23
+13
30 September, tue
+23
+13
Feels like
+16
747 mmHg
74%
3.4
m/s
SW
30 September, Tuesday. day, 23°; night, 13°; partly cloudy
1
+23
+14
1 October, wed
+23
+14
Feels like
+17
747 mmHg
72%
3.5
m/s
SW
1 October, Wednesday. day, 23°; night, 14°; clear
2
+23
+13
2 October, thu
+23
+13
Feels like
+16
747 mmHg
71%
3.5
m/s
W
2 October, Thursday. day, 23°; night, 13°; clear
3
+22
+13
3 October, fri
+22
+13
Feels like
+16
747 mmHg
72%
3.8
m/s
W
3 October, Friday. day, 22°; night, 13°; clear
4
+22
+13
4 October, sat
+22
+13
Feels like
+15
747 mmHg
70%
4
m/s
SW
4 October, Saturday. day, 22°; night, 13°; clear
Average data for 10 years
Cupertino September
19
sunny days
1
day with precipitation
10
cloudy days
19 sunny days; 1 day with precipitation; 10 cloudy days;
74
%
air humidity
1.9
m/s
Wind
W
3
mm of precipitation
(1% of annual average)
air humidity 74%; 3 millimeters of precipitation (1% of annual average); Wind westerly 1.9 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
SW
SW
SW
W
W
W
SW
W
W
SW
W
SW
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
San Francisco
Sacramento
Oakland
Redding
Monterey
San Jose
Reno
Santa Barbara
Stanford
Cities with similar weather in September
Podgorica
Toronto
Genoa
Boston
Seattle
Lima
Brisbane
San Remo
San Sebastian
