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September weather forecast in Napa
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
+31
+15
31 August, sun
+31
+15
Feels like
+21
729 mmHg
55%
3.5
m/s
SW
31 August, Sunday. day, 31°; night, 15°; clear
1
+31
+15
1 September, mon
+31
+15
Feels like
+20
729 mmHg
55%
3.4
m/s
SW
1 September, Monday. day, 31°; night, 15°; clear
2
+31
+15
2 September, tue
+31
+15
Feels like
+21
729 mmHg
54%
3.4
m/s
SW
2 September, Tuesday. day, 31°; night, 15°; clear
3
+31
+14
3 September, wed
+31
+14
Feels like
+20
730 mmHg
54%
3.5
m/s
SW
3 September, Wednesday. day, 31°; night, 14°; clear
4
+30
+14
4 September, thu
+30
+14
Feels like
+20
730 mmHg
55%
3.6
m/s
SW
4 September, Thursday. day, 30°; night, 14°; clear
5
+31
+14
5 September, fri
+31
+14
Feels like
+20
730 mmHg
52%
3.5
m/s
SW
5 September, Friday. day, 31°; night, 14°; clear
6
+32
+15
6 September, sat
+32
+15
Feels like
+21
730 mmHg
50%
3.3
m/s
SW
6 September, Saturday. day, 32°; night, 15°; clear
7
+32
+15
7 September, sun
+32
+15
Feels like
+21
730 mmHg
52%
3.5
m/s
SW
7 September, Sunday. day, 32°; night, 15°; clear
8
+31
+15
8 September, mon
+31
+15
Feels like
+20
729 mmHg
52%
3.6
m/s
SW
8 September, Monday. day, 31°; night, 15°; clear
9
+30
+14
9 September, tue
+30
+14
Feels like
+19
729 mmHg
55%
3.5
m/s
SW
9 September, Tuesday. day, 30°; night, 14°; clear
10
+30
+14
10 September, wed
+30
+14
Feels like
+19
730 mmHg
58%
3.4
m/s
SW
10 September, Wednesday. day, 30°; night, 14°; clear
11
+30
+14
11 September, thu
+30
+14
Feels like
+20
730 mmHg
57%
3.3
m/s
SW
11 September, Thursday. day, 30°; night, 14°; clear
12
+30
+14
12 September, fri
+30
+14
Feels like
+20
730 mmHg
58%
3.4
m/s
SW
12 September, Friday. day, 30°; night, 14°; clear
13
+29
+14
13 September, sat
+29
+14
Feels like
+19
730 mmHg
58%
3.4
m/s
SW
13 September, Saturday. day, 29°; night, 14°; partly cloudy
14
+28
+14
14 September, sun
+28
+14
Feels like
+19
730 mmHg
62%
3.4
m/s
SW
14 September, Sunday. day, 28°; night, 14°; clear
15
+27
+13
15 September, mon
+27
+13
Feels like
+18
730 mmHg
62%
3.7
m/s
SW
15 September, Monday. day, 27°; night, 13°; clear
16
+27
+13
16 September, tue
+27
+13
Feels like
+17
730 mmHg
62%
3.8
m/s
SW
16 September, Tuesday. day, 27°; night, 13°; clear
17
+28
+13
17 September, wed
+28
+13
Feels like
+18
730 mmHg
61%
3.7
m/s
SW
17 September, Wednesday. day, 28°; night, 13°; clear
18
+28
+14
18 September, thu
+28
+14
Feels like
+18
730 mmHg
60%
3.5
m/s
SW
18 September, Thursday. day, 28°; night, 14°; partly cloudy
19
+28
+14
19 September, fri
+28
+14
Feels like
+19
730 mmHg
58%
3.5
m/s
SW
19 September, Friday. day, 28°; night, 14°; rain
20
+29
+14
20 September, sat
+29
+14
Feels like
+19
730 mmHg
56%
3.2
m/s
SW
20 September, Saturday. day, 29°; night, 14°; clear
21
+29
+14
21 September, sun
+29
+14
Feels like
+19
730 mmHg
55%
3.3
m/s
SW
21 September, Sunday. day, 29°; night, 14°; clear
22
+28
+13
22 September, mon
+28
+13
Feels like
+18
730 mmHg
57%
3.3
m/s
SW
22 September, Monday. day, 28°; night, 13°; clear
23
+29
+13
23 September, tue
+29
+13
Feels like
+18
730 mmHg
56%
3.1
m/s
SW
23 September, Tuesday. day, 29°; night, 13°; clear
24
+29
+14
24 September, wed
+29
+14
Feels like
+19
731 mmHg
52%
3
m/s
SW
24 September, Wednesday. day, 29°; night, 14°; clear
25
+29
+13
25 September, thu
+29
+13
Feels like
+18
731 mmHg
57%
3.2
m/s
SW
25 September, Thursday. day, 29°; night, 13°; clear
26
+29
+13
26 September, fri
+29
+13
Feels like
+19
731 mmHg
56%
3.1
m/s
SW
26 September, Friday. day, 29°; night, 13°; clear
27
+29
+13
27 September, sat
+29
+13
Feels like
+18
730 mmHg
56%
3.1
m/s
SW
27 September, Saturday. day, 29°; night, 13°; clear
28
+29
+14
28 September, sun
+29
+14
Feels like
+18
730 mmHg
55%
3.3
m/s
SW
28 September, Sunday. day, 29°; night, 14°; clear
29
+28
+13
29 September, mon
+28
+13
Feels like
+17
730 mmHg
57%
3.3
m/s
SW
29 September, Monday. day, 28°; night, 13°; clear
30
+27
+13
30 September, tue
+27
+13
Feels like
+17
730 mmHg
60%
3.1
m/s
SW
30 September, Tuesday. day, 27°; night, 13°; partly cloudy
1
+27
+13
1 October, wed
+27
+13
Feels like
+17
731 mmHg
56%
3.1
m/s
SW
1 October, Wednesday. day, 27°; night, 13°; clear
2
+27
+13
2 October, thu
+27
+13
Feels like
+17
731 mmHg
55%
3.2
m/s
SW
2 October, Thursday. day, 27°; night, 13°; clear
3
+26
+12
3 October, fri
+26
+12
Feels like
+16
730 mmHg
56%
3.5
m/s
SW
3 October, Friday. day, 26°; night, 12°; clear
4
+26
+12
4 October, sat
+26
+12
Feels like
+16
730 mmHg
56%
3.7
m/s
SW
4 October, Saturday. day, 26°; night, 12°; clear
Average data for 10 years
Napa September
26
sunny days
1
day with precipitation
3
cloudy days
26 sunny days; 1 day with precipitation; 3 cloudy days;
56
%
air humidity
1.7
m/s
Wind
SW
5
mm of precipitation
(1% of annual average)
air humidity 56%; 5 millimeters of precipitation (1% of annual average); Wind south-westerly 1.7 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
SW
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
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Stanford
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Tsandrypsh
Kotor
Cannes
Lima
