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September weather forecast in Sion
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
+15
+5
31 August, sun
+15
+5
Feels like
+9
654 mmHg
80%
1.7
m/s
SW
31 August, Sunday. day, 15°; night, 5°; overcast
1
+15
+5
1 September, mon
+15
+5
Feels like
+9
654 mmHg
80%
1.6
m/s
SW
1 September, Monday. day, 15°; night, 5°; rain
2
+16
+6
2 September, tue
+16
+6
Feels like
+9
654 mmHg
79%
1.6
m/s
S
2 September, Tuesday. day, 16°; night, 6°; partly cloudy
3
+16
+6
3 September, wed
+16
+6
Feels like
+9
654 mmHg
78%
1.7
m/s
S
3 September, Wednesday. day, 16°; night, 6°; partly cloudy
4
+16
+5
4 September, thu
+16
+5
Feels like
+9
654 mmHg
79%
1.6
m/s
SW
4 September, Thursday. day, 16°; night, 5°; rain
5
+15
+5
5 September, fri
+15
+5
Feels like
+9
654 mmHg
79%
1.7
m/s
SW
5 September, Friday. day, 15°; night, 5°; partly cloudy
6
+16
+5
6 September, sat
+16
+5
Feels like
+9
654 mmHg
77%
1.6
m/s
SW
6 September, Saturday. day, 16°; night, 5°; clear
7
+15
+6
7 September, sun
+15
+6
Feels like
+9
653 mmHg
79%
1.8
m/s
S
7 September, Sunday. day, 15°; night, 6°; rain
8
+16
+5
8 September, mon
+16
+5
Feels like
+9
653 mmHg
78%
1.6
m/s
SW
8 September, Monday. day, 16°; night, 5°; clear
9
+15
+5
9 September, tue
+15
+5
Feels like
+9
653 mmHg
78%
1.6
m/s
SW
9 September, Tuesday. day, 15°; night, 5°; rain
10
+15
+5
10 September, wed
+15
+5
Feels like
+9
654 mmHg
80%
1.7
m/s
SW
10 September, Wednesday. day, 15°; night, 5°; rain
11
+15
+5
11 September, thu
+15
+5
Feels like
+9
653 mmHg
80%
1.6
m/s
SW
11 September, Thursday. day, 15°; night, 5°; rain
12
+14
+5
12 September, fri
+14
+5
Feels like
+8
653 mmHg
81%
1.6
m/s
SW
12 September, Friday. day, 14°; night, 5°; rain
13
+14
+3
13 September, sat
+14
+3
Feels like
+7
653 mmHg
80%
1.7
m/s
SW
13 September, Saturday. day, 14°; night, 3°; partly cloudy
14
+13
+4
14 September, sun
+13
+4
Feels like
+7
653 mmHg
81%
1.8
m/s
S
14 September, Sunday. day, 13°; night, 4°; rain
15
+14
+4
15 September, mon
+14
+4
Feels like
+7
652 mmHg
80%
1.7
m/s
S
15 September, Monday. day, 14°; night, 4°; rain
16
+14
+4
16 September, tue
+14
+4
Feels like
+7
652 mmHg
81%
1.7
m/s
S
16 September, Tuesday. day, 14°; night, 4°; rain
17
+13
+3
17 September, wed
+13
+3
Feels like
+6
651 mmHg
81%
1.7
m/s
SW
17 September, Wednesday. day, 13°; night, 3°; partly cloudy
18
+13
+3
18 September, thu
+13
+3
Feels like
+6
651 mmHg
83%
1.7
m/s
S
18 September, Thursday. day, 13°; night, 3°; rain
19
+12
+3
19 September, fri
+12
+3
Feels like
+6
652 mmHg
82%
1.7
m/s
S
19 September, Friday. day, 12°; night, 3°; rain
20
+13
+3
20 September, sat
+13
+3
Feels like
+6
653 mmHg
80%
1.7
m/s
S
20 September, Saturday. day, 13°; night, 3°; clear
21
+14
+3
21 September, sun
+14
+3
Feels like
+6
653 mmHg
79%
1.6
m/s
S
21 September, Sunday. day, 14°; night, 3°; clear
22
+14
+3
22 September, mon
+14
+3
Feels like
+6
652 mmHg
80%
1.6
m/s
S
22 September, Monday. day, 14°; night, 3°; overcast
23
+13
+3
23 September, tue
+13
+3
Feels like
+6
652 mmHg
82%
1.7
m/s
SW
23 September, Tuesday. day, 13°; night, 3°; rain
24
+12
+2
24 September, wed
+12
+2
Feels like
+5
652 mmHg
82%
1.7
m/s
SW
24 September, Wednesday. day, 12°; night, 2°; rain
25
+11
+2
25 September, thu
+11
+2
Feels like
+4
652 mmHg
84%
1.7
m/s
SW
25 September, Thursday. day, 11°; night, 2°; rain
26
+11
+2
26 September, fri
+11
+2
Feels like
+4
652 mmHg
83%
1.7
m/s
SW
26 September, Friday. day, 11°; night, 2°; overcast
27
+12
+1
27 September, sat
+12
+1
Feels like
+5
652 mmHg
80%
1.6
m/s
S
27 September, Saturday. day, 12°; night, 1°; overcast
28
+12
+2
28 September, sun
+12
+2
Feels like
+5
653 mmHg
81%
1.6
m/s
SW
28 September, Sunday. day, 12°; night, 2°; partly cloudy
29
+13
+2
29 September, mon
+13
+2
Feels like
+5
653 mmHg
79%
1.7
m/s
S
29 September, Monday. day, 13°; night, 2°; partly cloudy
30
+12
+2
30 September, tue
+12
+2
Feels like
+5
652 mmHg
81%
1.7
m/s
S
30 September, Tuesday. day, 12°; night, 2°; partly cloudy
1
+12
+2
1 October, wed
+12
+2
Feels like
+5
652 mmHg
82%
1.7
m/s
S
1 October, Wednesday. day, 12°; night, 2°; rain
2
+13
+2
2 October, thu
+13
+2
Feels like
+6
652 mmHg
81%
1.8
m/s
SW
2 October, Thursday. day, 13°; night, 2°; overcast
3
+12
+2
3 October, fri
+12
+2
Feels like
+5
652 mmHg
82%
1.8
m/s
S
3 October, Friday. day, 12°; night, 2°; rain
4
+11
+2
4 October, sat
+11
+2
Feels like
+4
652 mmHg
81%
1.7
m/s
S
4 October, Saturday. day, 11°; night, 2°; rain
Average data for 10 years
Sion September
4
sunny days
15
days with precipitation
10
cloudy days
4 sunny days; 15 days with precipitation; 10 cloudy days;
80
%
air humidity
1
m/s
Wind
SW
129
mm of precipitation
(8% of annual average)
air humidity 80%; 129 millimeters of precipitation (8% of annual average); Wind south-westerly 1 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
S
S
SW
SW
SW
S
SW
SW
SW
SW
SW
SW
S
S
S
SW
S
S
S
S
S
SW
SW
SW
SW
S
SW
S
S
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
Milan
Nice
Marseilles
Zurich
Geneva
Bern
Monaco
Genoa
Stuttgart
Cities with similar weather in September
Vitebsk
Petropavlovsk
Cholpon-Ata
Oslo
Santiago
Burabaj
Melbourne
Altay
Canberra
