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September weather forecast in San Bruno
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
+22
+18
31 August, sun
+22
+18
Feels like
+21
753 mmHg
57%
5.6
m/s
W
+15
31 August, Sunday. day, 22°; night, 18°; clear
1
+23
+18
1 September, mon
+23
+18
Feels like
+22
753 mmHg
56%
4.9
m/s
W
+15
1 September, Monday. day, 23°; night, 18°; clear
2
+22
+16
2 September, tue
+22
+16
Feels like
+20
754 mmHg
56%
5.1
m/s
W
+15
2 September, Tuesday. day, 22°; night, 16°; clear
3
+20
+16
3 September, wed
+20
+16
Feels like
+19
753 mmHg
62%
5.4
m/s
W
+15
3 September, Wednesday. day, 20°; night, 16°; clear
4
+21
+16
4 September, thu
+21
+16
Feels like
+19
754 mmHg
63%
5.5
m/s
W
+15
4 September, Thursday. day, 21°; night, 16°; clear
5
+23
+18
5 September, fri
+23
+18
Feels like
+22
754 mmHg
52%
5
m/s
W
+15
5 September, Friday. day, 23°; night, 18°; clear
6
+23
+17
6 September, sat
+23
+17
Feels like
+21
753 mmHg
56%
5.3
m/s
W
+15
6 September, Saturday. day, 23°; night, 17°; clear
7
+21
+16
7 September, sun
+21
+16
Feels like
+20
753 mmHg
61%
5.3
m/s
W
+15
7 September, Sunday. day, 21°; night, 16°; clear
8
+20
+16
8 September, mon
+20
+16
Feels like
+20
754 mmHg
63%
4.8
m/s
W
+15
8 September, Monday. day, 20°; night, 16°; clear
9
+22
+18
9 September, tue
+22
+18
Feels like
+21
754 mmHg
60%
4.6
m/s
W
+15
9 September, Tuesday. day, 22°; night, 18°; clear
10
+22
+16
10 September, wed
+22
+16
Feels like
+21
754 mmHg
60%
4.5
m/s
W
+15
10 September, Wednesday. day, 22°; night, 16°; partly cloudy
11
+19
+15
11 September, thu
+19
+15
Feels like
+19
754 mmHg
72%
4.9
m/s
W
+15
11 September, Thursday. day, 19°; night, 15°; clear
12
+18
+14
12 September, fri
+18
+14
Feels like
+17
754 mmHg
74%
4.6
m/s
W
+15
12 September, Friday. day, 18°; night, 14°; partly cloudy
13
+18
+15
13 September, sat
+18
+15
Feels like
+16
754 mmHg
73%
5.1
m/s
SW
+15
13 September, Saturday. day, 18°; night, 15°; clear
14
+18
+14
14 September, sun
+18
+14
Feels like
+16
755 mmHg
72%
6
m/s
W
+15
14 September, Sunday. day, 18°; night, 14°; clear
15
+18
+15
15 September, mon
+18
+15
Feels like
+17
755 mmHg
73%
5.5
m/s
W
+15
15 September, Monday. day, 18°; night, 15°; clear
16
+19
+16
16 September, tue
+19
+16
Feels like
+18
755 mmHg
69%
5.5
m/s
W
+15
16 September, Tuesday. day, 19°; night, 16°; clear
17
+21
+16
17 September, wed
+21
+16
Feels like
+20
755 mmHg
63%
5.3
m/s
W
+15
17 September, Wednesday. day, 21°; night, 16°; clear
18
+22
+17
18 September, thu
+22
+17
Feels like
+21
754 mmHg
60%
5.1
m/s
W
+15
18 September, Thursday. day, 22°; night, 17°; clear
19
+22
+17
19 September, fri
+22
+17
Feels like
+21
754 mmHg
62%
4.5
m/s
W
+15
19 September, Friday. day, 22°; night, 17°; clear
20
+20
+15
20 September, sat
+20
+15
Feels like
+18
754 mmHg
64%
5.5
m/s
W
+15
20 September, Saturday. day, 20°; night, 15°; clear
21
+19
+15
21 September, sun
+19
+15
Feels like
+18
754 mmHg
64%
5.8
m/s
W
+15
21 September, Sunday. day, 19°; night, 15°; clear
22
+21
+17
22 September, mon
+21
+17
Feels like
+20
755 mmHg
57%
5.5
m/s
W
+15
22 September, Monday. day, 21°; night, 17°; clear
23
+22
+17
23 September, tue
+22
+17
Feels like
+20
755 mmHg
56%
5.5
m/s
W
+15
23 September, Tuesday. day, 22°; night, 17°; clear
24
+22
+18
24 September, wed
+22
+18
Feels like
+21
755 mmHg
56%
5.1
m/s
W
+15
24 September, Wednesday. day, 22°; night, 18°; clear
25
+24
+19
25 September, thu
+24
+19
Feels like
+22
754 mmHg
49%
4.9
m/s
W
+15
25 September, Thursday. day, 24°; night, 19°; clear
26
+24
+19
26 September, fri
+24
+19
Feels like
+23
754 mmHg
44%
4.5
m/s
W
+15
26 September, Friday. day, 24°; night, 19°; clear
27
+23
+17
27 September, sat
+23
+17
Feels like
+22
754 mmHg
50%
4.3
m/s
W
+15
27 September, Saturday. day, 23°; night, 17°; clear
28
+18
+15
28 September, sun
+18
+15
Feels like
+16
755 mmHg
63%
5
m/s
W
+15
28 September, Sunday. day, 18°; night, 15°; clear
29
+18
+15
29 September, mon
+18
+15
Feels like
+17
756 mmHg
68%
4.5
m/s
W
+15
29 September, Monday. day, 18°; night, 15°; clear
30
+20
+17
30 September, tue
+20
+17
Feels like
+19
756 mmHg
56%
4.8
m/s
W
+15
30 September, Tuesday. day, 20°; night, 17°; clear
1
+21
+17
1 October, wed
+21
+17
Feels like
+19
755 mmHg
49%
5.5
m/s
W
+15
1 October, Wednesday. day, 21°; night, 17°; clear
2
+20
+17
2 October, thu
+20
+17
Feels like
+18
754 mmHg
54%
6
m/s
W
+14
2 October, Thursday. day, 20°; night, 17°; clear
3
+20
+17
3 October, fri
+20
+17
Feels like
+18
754 mmHg
56%
5.4
m/s
SW
+14
3 October, Friday. day, 20°; night, 17°; clear
4
+20
+16
4 October, sat
+20
+16
Feels like
+18
755 mmHg
60%
5
m/s
W
+14
4 October, Saturday. day, 20°; night, 16°; clear
Average data for 10 years
San Bruno September
28
sunny days
0
days with precipitation
2
cloudy days
28 sunny days; 0 days with precipitation; 2 cloudy days;
62
%
air humidity
3
m/s
Wind
W
3
mm of precipitation
(1% of annual average)
+15
°C
Water temperature
air humidity 62%; 3 millimeters of precipitation (1% of annual average); Wind westerly 3 Meters per second; Water temperature +15°
Weather graphs for September
Temperature
Water temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
W
W
W
W
W
W
W
W
W
SW
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
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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