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September weather forecast in St. Helena
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
+27
+19
1 September, sun
+27
+19
Feels like
+26
757 mmHg
40%
4.1
m/s
SW
1 September, Sunday. day, 27°; night, 19°; clear
2
+27
+18
2 September, mon
+27
+18
Feels like
+25
757 mmHg
36%
4
m/s
SW
2 September, Monday. day, 27°; night, 18°; clear
3
+26
+17
3 September, tue
+26
+17
Feels like
+24
757 mmHg
38%
4.1
m/s
SW
3 September, Tuesday. day, 26°; night, 17°; clear
4
+26
+18
4 September, wed
+26
+18
Feels like
+24
757 mmHg
43%
4.3
m/s
W
4 September, Wednesday. day, 26°; night, 18°; clear
5
+27
+19
5 September, thu
+27
+19
Feels like
+26
757 mmHg
34%
3.7
m/s
W
5 September, Thursday. day, 27°; night, 19°; clear
6
+27
+19
6 September, fri
+27
+19
Feels like
+25
757 mmHg
36%
4.4
m/s
W
6 September, Friday. day, 27°; night, 19°; clear
7
+26
+19
7 September, sat
+26
+19
Feels like
+24
757 mmHg
37%
4.8
m/s
W
7 September, Saturday. day, 26°; night, 19°; clear
8
+27
+19
8 September, sun
+27
+19
Feels like
+26
758 mmHg
41%
3.7
m/s
SW
8 September, Sunday. day, 27°; night, 19°; clear
9
+27
+19
9 September, mon
+27
+19
Feels like
+25
757 mmHg
38%
4
m/s
SW
9 September, Monday. day, 27°; night, 19°; clear
10
+26
+18
10 September, tue
+26
+18
Feels like
+26
758 mmHg
41%
3.5
m/s
W
10 September, Tuesday. day, 26°; night, 18°; clear
11
+25
+16
11 September, wed
+25
+16
Feels like
+24
758 mmHg
47%
4
m/s
W
11 September, Wednesday. day, 25°; night, 16°; clear
12
+23
+15
12 September, thu
+23
+15
Feels like
+23
757 mmHg
56%
3.7
m/s
W
12 September, Thursday. day, 23°; night, 15°; clear
13
+23
+15
13 September, fri
+23
+15
Feels like
+22
757 mmHg
57%
4.1
m/s
W
13 September, Friday. day, 23°; night, 15°; clear
14
+23
+15
14 September, sat
+23
+15
Feels like
+22
758 mmHg
54%
4.5
m/s
W
14 September, Saturday. day, 23°; night, 15°; clear
15
+24
+16
15 September, sun
+24
+16
Feels like
+23
759 mmHg
49%
4
m/s
W
15 September, Sunday. day, 24°; night, 16°; clear
16
+24
+17
16 September, mon
+24
+17
Feels like
+23
758 mmHg
50%
4
m/s
W
16 September, Monday. day, 24°; night, 17°; clear
17
+24
+17
17 September, tue
+24
+17
Feels like
+23
758 mmHg
47%
4
m/s
W
17 September, Tuesday. day, 24°; night, 17°; clear
18
+25
+18
18 September, wed
+25
+18
Feels like
+24
758 mmHg
44%
4
m/s
W
18 September, Wednesday. day, 25°; night, 18°; clear
19
+25
+18
19 September, thu
+25
+18
Feels like
+24
758 mmHg
47%
4.1
m/s
W
19 September, Thursday. day, 25°; night, 18°; clear
20
+24
+16
20 September, fri
+24
+16
Feels like
+22
757 mmHg
49%
4.9
m/s
W
20 September, Friday. day, 24°; night, 16°; clear
21
+24
+16
21 September, sat
+24
+16
Feels like
+22
758 mmHg
44%
4.5
m/s
W
21 September, Saturday. day, 24°; night, 16°; clear
22
+25
+18
22 September, sun
+25
+18
Feels like
+24
759 mmHg
38%
4
m/s
W
22 September, Sunday. day, 25°; night, 18°; clear
23
+25
+18
23 September, mon
+25
+18
Feels like
+23
759 mmHg
37%
4
m/s
W
23 September, Monday. day, 25°; night, 18°; clear
24
+25
+19
24 September, tue
+25
+19
Feels like
+24
759 mmHg
43%
3.4
m/s
W
24 September, Tuesday. day, 25°; night, 19°; clear
25
+27
+20
25 September, wed
+27
+20
Feels like
+25
758 mmHg
31%
3.7
m/s
NW
25 September, Wednesday. day, 27°; night, 20°; clear
26
+28
+21
26 September, thu
+28
+21
Feels like
+26
758 mmHg
30%
3.5
m/s
W
26 September, Thursday. day, 28°; night, 21°; clear
27
+26
+19
27 September, fri
+26
+19
Feels like
+24
757 mmHg
31%
3.9
m/s
W
27 September, Friday. day, 26°; night, 19°; clear
28
+23
+16
28 September, sat
+23
+16
Feels like
+21
758 mmHg
41%
4.4
m/s
W
28 September, Saturday. day, 23°; night, 16°; clear
29
+22
+16
29 September, sun
+22
+16
Feels like
+21
759 mmHg
55%
3.9
m/s
W
29 September, Sunday. day, 22°; night, 16°; clear
30
+23
+17
30 September, mon
+23
+17
Feels like
+22
760 mmHg
43%
3.5
m/s
W
30 September, Monday. day, 23°; night, 17°; clear
1
+24
+16
1 October, tue
+24
+16
Feels like
+22
759 mmHg
37%
4.1
m/s
W
1 October, Tuesday. day, 24°; night, 16°; clear
2
+22
+16
2 October, wed
+22
+16
Feels like
+19
757 mmHg
43%
5.6
m/s
W
2 October, Wednesday. day, 22°; night, 16°; clear
3
+20
+16
3 October, thu
+20
+16
Feels like
+18
758 mmHg
49%
4.4
m/s
NW
3 October, Thursday. day, 20°; night, 16°; clear
4
+21
+15
4 October, fri
+21
+15
Feels like
+20
759 mmHg
47%
3.5
m/s
W
4 October, Friday. day, 21°; night, 15°; clear
5
+22
+15
5 October, sat
+22
+15
Feels like
+21
760 mmHg
47%
3.5
m/s
W
5 October, Saturday. day, 22°; night, 15°; clear
Average data for 10 years
St. Helena September
30
sunny days
0
days with precipitation
0
cloudy days
30 sunny days; 0 days with precipitation; 0 cloudy days;
43
%
air humidity
2.7
m/s
Wind
W
4
mm of precipitation
(1% of annual average)
air humidity 43%; 4 millimeters of precipitation (1% of annual average); Wind westerly 2.7 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
SW
SW
SW
W
W
W
W
SW
SW
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
NW
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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