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September weather forecast in Londonderry
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
+25
+19
1 September, sun
+25
+19
Feels like
+26
753 mmHg
64%
3.5
m/s
W
1 September, Sunday. day, 25°; night, 19°; clear
2
+24
+19
2 September, mon
+24
+19
Feels like
+25
752 mmHg
73%
4.3
m/s
W
2 September, Monday. day, 24°; night, 19°; rain
3
+24
+18
3 September, tue
+24
+18
Feels like
+24
752 mmHg
67%
4.4
m/s
W
3 September, Tuesday. day, 24°; night, 18°; clear
4
+24
+18
4 September, wed
+24
+18
Feels like
+24
753 mmHg
68%
4.5
m/s
SW
4 September, Wednesday. day, 24°; night, 18°; partly cloudy
5
+23
+18
5 September, thu
+23
+18
Feels like
+23
755 mmHg
68%
4.5
m/s
W
5 September, Thursday. day, 23°; night, 18°; partly cloudy
6
+23
+16
6 September, fri
+23
+16
Feels like
+23
754 mmHg
74%
4.5
m/s
W
6 September, Friday. day, 23°; night, 16°; clear
7
+23
+18
7 September, sat
+23
+18
Feels like
+23
753 mmHg
73%
4.5
m/s
NW
7 September, Saturday. day, 23°; night, 18°; partly cloudy
8
+23
+17
8 September, sun
+23
+17
Feels like
+22
753 mmHg
68%
4.8
m/s
W
8 September, Sunday. day, 23°; night, 17°; partly cloudy
9
+21
+17
9 September, mon
+21
+17
Feels like
+21
754 mmHg
75%
4.1
m/s
NW
9 September, Monday. day, 21°; night, 17°; rain
10
+21
+16
10 September, tue
+21
+16
Feels like
+21
754 mmHg
73%
4.6
m/s
NW
10 September, Tuesday. day, 21°; night, 16°; clear
11
+21
+16
11 September, wed
+21
+16
Feels like
+21
754 mmHg
69%
4.6
m/s
NW
11 September, Wednesday. day, 21°; night, 16°; clear
12
+20
+15
12 September, thu
+20
+15
Feels like
+20
752 mmHg
74%
4
m/s
SW
12 September, Thursday. day, 20°; night, 15°; rain
13
+22
+16
13 September, fri
+22
+16
Feels like
+22
753 mmHg
68%
4.6
m/s
W
13 September, Friday. day, 22°; night, 16°; partly cloudy
14
+22
+16
14 September, sat
+22
+16
Feels like
+22
754 mmHg
70%
4.5
m/s
W
14 September, Saturday. day, 22°; night, 16°; clear
15
+19
+15
15 September, sun
+19
+15
Feels like
+18
756 mmHg
68%
5.4
m/s
NW
15 September, Sunday. day, 19°; night, 15°; partly cloudy
16
+19
+14
16 September, mon
+19
+14
Feels like
+18
757 mmHg
67%
3.7
m/s
W
16 September, Monday. day, 19°; night, 14°; rain
17
+21
+14
17 September, tue
+21
+14
Feels like
+20
756 mmHg
66%
4
m/s
SW
17 September, Tuesday. day, 21°; night, 14°; clear
18
+19
+14
18 September, wed
+19
+14
Feels like
+18
756 mmHg
69%
4.5
m/s
W
18 September, Wednesday. day, 19°; night, 14°; partly cloudy
19
+19
+15
19 September, thu
+19
+15
Feels like
+18
756 mmHg
69%
4.5
m/s
NW
19 September, Thursday. day, 19°; night, 15°; partly cloudy
20
+21
+14
20 September, fri
+21
+14
Feels like
+20
756 mmHg
66%
3.7
m/s
SW
20 September, Friday. day, 21°; night, 14°; clear
21
+21
+16
21 September, sat
+21
+16
Feels like
+21
755 mmHg
68%
4.3
m/s
W
21 September, Saturday. day, 21°; night, 16°; partly cloudy
22
+20
+15
22 September, sun
+20
+15
Feels like
+20
756 mmHg
68%
4
m/s
W
22 September, Sunday. day, 20°; night, 15°; clear
23
+22
+17
23 September, mon
+22
+17
Feels like
+21
756 mmHg
67%
4
m/s
W
23 September, Monday. day, 22°; night, 17°; clear
24
+20
+15
24 September, tue
+20
+15
Feels like
+19
757 mmHg
66%
4
m/s
NW
24 September, Tuesday. day, 20°; night, 15°; partly cloudy
25
+19
+13
25 September, wed
+19
+13
Feels like
+18
758 mmHg
64%
4.3
m/s
NW
25 September, Wednesday. day, 19°; night, 13°; clear
26
+19
+14
26 September, thu
+19
+14
Feels like
+19
756 mmHg
76%
4.5
m/s
E
26 September, Thursday. day, 19°; night, 14°; rain
27
+21
+16
27 September, fri
+21
+16
Feels like
+21
753 mmHg
75%
4.3
m/s
W
27 September, Friday. day, 21°; night, 16°; rain
28
+18
+16
28 September, sat
+18
+16
Feels like
+18
752 mmHg
81%
4.4
m/s
S
28 September, Saturday. day, 18°; night, 16°; clear
29
+17
+15
29 September, sun
+17
+15
Feels like
+16
752 mmHg
81%
4.6
m/s
N
29 September, Sunday. day, 17°; night, 15°; clear
30
+16
+13
30 September, mon
+16
+13
Feels like
+14
752 mmHg
80%
5
m/s
N
30 September, Monday. day, 16°; night, 13°; clear
1
+16
+12
1 October, tue
+16
+12
Feels like
+13
754 mmHg
75%
4.9
m/s
NW
1 October, Tuesday. day, 16°; night, 12°; partly cloudy
2
+16
+12
2 October, wed
+16
+12
Feels like
+15
755 mmHg
76%
4.5
m/s
N
2 October, Wednesday. day, 16°; night, 12°; overcast
3
+16
+13
3 October, thu
+16
+13
Feels like
+15
754 mmHg
81%
4.5
m/s
N
3 October, Thursday. day, 16°; night, 13°; clear
4
+16
+13
4 October, fri
+16
+13
Feels like
+14
755 mmHg
75%
5.5
m/s
NW
4 October, Friday. day, 16°; night, 13°; partly cloudy
5
+16
+12
5 October, sat
+16
+12
Feels like
+14
755 mmHg
69%
4.5
m/s
NW
5 October, Saturday. day, 16°; night, 12°; partly cloudy
Average data for 10 years
Londonderry September
14
sunny days
6
days with precipitation
10
cloudy days
14 sunny days; 6 days with precipitation; 10 cloudy days;
70
%
air humidity
3
m/s
Wind
W
69
mm of precipitation
(8% of annual average)
air humidity 70%; 69 millimeters of precipitation (8% of annual average); Wind westerly 3 Meters per second
Weather graphs for September
Temperature
Precipitation chance, %
Humidity, %
Wind, m/s
Pressure, mmHg
W
W
W
SW
W
W
NW
W
NW
NW
NW
SW
W
W
NW
W
SW
W
NW
SW
W
W
W
NW
NW
E
W
S
N
N
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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