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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
1
+12
+8
1 September, sun
+12
+8
Feels like
+9
726 mmHg
75%
5
m/s
N
1 September, Sunday. day, 12°; night, 8°; rain
2
+14
+9
2 September, mon
+14
+9
Feels like
+11
725 mmHg
68%
4.6
m/s
NW
2 September, Monday. day, 14°; night, 9°; partly cloudy
3
+14
+10
3 September, tue
+14
+10
Feels like
+11
724 mmHg
70%
5.4
m/s
W
3 September, Tuesday. day, 14°; night, 10°; clear
4
+12
+9
4 September, wed
+12
+9
Feels like
+9
726 mmHg
73%
4.8
m/s
NW
4 September, Wednesday. day, 12°; night, 9°; rain
5
+13
+8
5 September, thu
+13
+8
Feels like
+10
726 mmHg
69%
4.4
m/s
NW
5 September, Thursday. day, 13°; night, 8°; clear
6
+12
+9
6 September, fri
+12
+9
Feels like
+9
725 mmHg
70%
5.5
m/s
N
6 September, Friday. day, 12°; night, 9°; partly cloudy
7
+13
+9
7 September, sat
+13
+9
Feels like
+10
725 mmHg
68%
5
m/s
SW
7 September, Saturday. day, 13°; night, 9°; clear
8
+12
+9
8 September, sun
+12
+9
Feels like
+10
725 mmHg
68%
3.7
m/s
NW
8 September, Sunday. day, 12°; night, 9°; clear
9
+12
+9
9 September, mon
+12
+9
Feels like
+10
725 mmHg
69%
4.1
m/s
N
9 September, Monday. day, 12°; night, 9°; partly cloudy
10
+13
+9
10 September, tue
+13
+9
Feels like
+10
725 mmHg
69%
4.5
m/s
N
10 September, Tuesday. day, 13°; night, 9°; rain
11
+11
+8
11 September, wed
+11
+8
Feels like
+8
725 mmHg
75%
4.5
m/s
NW
11 September, Wednesday. day, 11°; night, 8°; rain
12
+11
+8
12 September, thu
+11
+8
Feels like
+8
725 mmHg
77%
4.9
m/s
NW
12 September, Thursday. day, 11°; night, 8°; partly cloudy
13
+10
+7
13 September, fri
+10
+7
Feels like
+7
724 mmHg
77%
5.4
m/s
N
13 September, Friday. day, 10°; night, 7°; clear
14
+11
+6
14 September, sat
+11
+6
Feels like
+7
723 mmHg
66%
4.8
m/s
SE
14 September, Saturday. day, 11°; night, 6°; clear
15
+10
+7
15 September, sun
+10
+7
Feels like
+6
722 mmHg
73%
5
m/s
S
15 September, Sunday. day, 10°; night, 7°; partly cloudy
16
+9
+7
16 September, mon
+9
+7
Feels like
+6
723 mmHg
81%
4.8
m/s
S
16 September, Monday. day, 9°; night, 7°; rain
17
+8
+6
17 September, tue
+8
+6
Feels like
+5
723 mmHg
77%
4.9
m/s
SW
17 September, Tuesday. day, 8°; night, 6°; rain
18
+8
+5
18 September, wed
+8
+5
Feels like
+5
725 mmHg
75%
4.3
m/s
NW
18 September, Wednesday. day, 8°; night, 5°; clear
19
+9
+5
19 September, thu
+9
+5
Feels like
+6
727 mmHg
79%
4
m/s
N
19 September, Thursday. day, 9°; night, 5°; rain
20
+11
+6
20 September, fri
+11
+6
Feels like
+8
727 mmHg
62%
4.1
m/s
NE
20 September, Friday. day, 11°; night, 6°; rain
21
+11
+7
21 September, sat
+11
+7
Feels like
+8
726 mmHg
63%
4.1
m/s
NE
21 September, Saturday. day, 11°; night, 7°; partly cloudy
22
+11
+7
22 September, sun
+11
+7
Feels like
+8
726 mmHg
66%
4.5
m/s
NE
22 September, Sunday. day, 11°; night, 7°; rain
23
+10
+7
23 September, mon
+10
+7
Feels like
+7
725 mmHg
69%
4.4
m/s
NW
23 September, Monday. day, 10°; night, 7°; clear
24
+9
+7
24 September, tue
+9
+7
Feels like
+6
725 mmHg
70%
4.8
m/s
N
24 September, Tuesday. day, 9°; night, 7°; clear
25
+10
+6
25 September, wed
+10
+6
Feels like
+6
726 mmHg
69%
4.8
m/s
NE
25 September, Wednesday. day, 10°; night, 6°; partly cloudy
26
+10
+7
26 September, thu
+10
+7
Feels like
+7
727 mmHg
75%
4.3
m/s
NE
26 September, Thursday. day, 10°; night, 7°; rain
27
+10
+7
27 September, fri
+10
+7
Feels like
+7
728 mmHg
72%
4
m/s
NE
27 September, Friday. day, 10°; night, 7°; partly cloudy
28
+11
+7
28 September, sat
+11
+7
Feels like
+8
728 mmHg
67%
3.7
m/s
E
28 September, Saturday. day, 11°; night, 7°; rain
29
+11
+7
29 September, sun
+11
+7
Feels like
+8
727 mmHg
72%
3.7
m/s
SW
29 September, Sunday. day, 11°; night, 7°; clear
30
+10
+7
30 September, mon
+10
+7
Feels like
+7
726 mmHg
70%
4.3
m/s
W
30 September, Monday. day, 10°; night, 7°; clear
1
+11
+7
1 October, tue
+11
+7
Feels like
+8
726 mmHg
69%
4.5
m/s
SW
1 October, Tuesday. day, 11°; night, 7°; partly cloudy
2
+10
+7
2 October, wed
+10
+7
Feels like
+7
726 mmHg
70%
4.3
m/s
SW
2 October, Wednesday. day, 10°; night, 7°; partly cloudy
3
+10
+6
3 October, thu
+10
+6
Feels like
+6
726 mmHg
63%
4.5
m/s
SW
3 October, Thursday. day, 10°; night, 6°; partly cloudy
4
+10
+6
4 October, fri
+10
+6
Feels like
+7
726 mmHg
66%
4.8
m/s
W
4 October, Friday. day, 10°; night, 6°; rain
5
+10
+6
5 October, sat
+10
+6
Feels like
+6
725 mmHg
68%
5
m/s
SW
5 October, Saturday. day, 10°; night, 6°; clear
Average data for 10 years
Sion September
11
sunny days
11
days with precipitation
8
cloudy days
11 sunny days; 11 days with precipitation; 8 cloudy days;
72
%
air humidity
3.2
m/s
Wind
N
75
mm of precipitation
(6% of annual average)
air humidity 72%; 75 millimeters of precipitation (6% of annual average); Wind northerly 3.2 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
N
NW
W
NW
NW
N
SW
NW
N
N
NW
NW
N
SE
S
S
SW
NW
N
NE
NE
NE
NW
N
NE
NE
NE
E
SW
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
Cities near you
Milan
Nice
Zurich
Marseilles
Genoa
Geneva
Bern
Como
Turin
Cities with similar weather in September
Vitebsk
Petropavlovsk
Cholpon-Ata
Oslo
Santiago
Burabaj
Melbourne
Altay
Canberra
