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Monthly weather forecast in Belfast
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
25
+16
+14
25 August, sun
+16
+14
Feels like
+13
751 mmHg
79%
7.1
m/s
SW
+15
25 August, Sunday. day, 16°; night, 14°; rain
26
+16
+13
26 August, mon
+16
+13
Feels like
+13
754 mmHg
81%
7.3
m/s
SW
+15
26 August, Monday. day, 16°; night, 13°; rain
27
+15
+14
27 August, tue
+15
+14
Feels like
+11
755 mmHg
81%
8.3
m/s
SW
+14
27 August, Tuesday. day, 15°; night, 14°; rain
28
+15
+13
28 August, wed
+15
+13
Feels like
+11
757 mmHg
81%
7.6
m/s
W
+14
28 August, Wednesday. day, 15°; night, 13°; overcast
29
+16
+13
29 August, thu
+16
+13
Feels like
+14
757 mmHg
81%
6
m/s
SW
+15
29 August, Thursday. day, 16°; night, 13°; clear
30
August
+17
+7
30 August, fri
+17
+7
Feels like
+12
764 mmHg
73%
3.7
m/s
W
+15
Climate normal
+15
+14
30 August, Friday. day, 17°; night, 7°; partly cloudy
31
+18
+13
31 August, sat
+18
+13
Feels like
+12
764 mmHg
75%
6
m/s
SE
+15
Climate normal
+15
+13
31 August, Saturday. day, 18°; night, 13°; mostly clear
1 September
+16
+15
1 September, sun
+16
+15
Feels like
+12
757 mmHg
88%
6
m/s
E
+15
Climate normal
+16
+13
1 September, Sunday. day, 16°; night, 15°; light rain
2
+16
+12
2 September, mon
+16
+12
Feels like
+13
753 mmHg
89%
4.4
m/s
N
+16
Climate normal
+15
+14
2 September, Monday. day, 16°; night, 12°; light rain
3
+17
+11
3 September, tue
+17
+11
Feels like
+13
755 mmHg
80%
4.2
m/s
NW
+16
Climate normal
+16
+13
3 September, Tuesday. day, 17°; night, 11°; light rain
4
+17
+11
4 September, wed
+17
+11
Feels like
+11
761 mmHg
72%
5.9
m/s
NW
+16
Climate normal
+15
+14
4 September, Wednesday. day, 17°; night, 11°; light rain
5
+18
+14
5 September, thu
+18
+14
Feels like
+14
764 mmHg
76%
4.1
m/s
N
+16
Climate normal
+14
+13
5 September, Thursday. day, 18°; night, 14°; partly cloudy
6
+20
+15
6 September, fri
+20
+15
Feels like
+15
763 mmHg
80%
3.9
m/s
NE
+16
Climate normal
+15
+13
6 September, Friday. day, 20°; night, 15°; heavy rain
7
+21
+15
7 September, sat
+21
+15
Feels like
+18
761 mmHg
81%
3.5
m/s
E
+16
Climate normal
+15
+13
7 September, Saturday. day, 21°; night, 15°; heavy rain
8
+20
+14
8 September, sun
+20
+14
Feels like
+16
759 mmHg
76%
4.5
m/s
E
+16
Climate normal
+15
+13
8 September, Sunday. day, 20°; night, 14°; partly cloudy
9
+17
+11
9 September, mon
+17
+11
Feels like
+13
757 mmHg
76%
4.5
m/s
W
Climate normal
+16
+14
9 September, Monday. day, 17°; night, 11°; partly cloudy
10
+19
+13
10 September, tue
+19
+13
Feels like
+14
756 mmHg
72%
3.3
m/s
SW
Climate normal
+15
+13
10 September, Tuesday. day, 19°; night, 13°; partly cloudy
11
+18
+16
11 September, wed
+18
+16
Feels like
+14
755 mmHg
73%
3.7
m/s
SW
Climate normal
+15
+13
11 September, Wednesday. day, 18°; night, 16°; partly cloudy
12
+15
+13
12 September, thu
+15
+13
Feels like
+7
757 mmHg
84%
10.1
m/s
W
Climate normal
+15
+12
12 September, Thursday. day, 15°; night, 13°; rain
13
+12
+11
13 September, fri
+12
+11
Feels like
+6
757 mmHg
83%
8.4
m/s
W
Climate normal
+14
+13
13 September, Friday. day, 12°; night, 11°; light rain
14
+13
+11
14 September, sat
+13
+11
Feels like
+9
754 mmHg
87%
4
m/s
W
Climate normal
+14
+13
14 September, Saturday. day, 13°; night, 11°; rain
15
+13
+11
15 September, sun
+13
+11
Feels like
+8
757 mmHg
83%
5
m/s
NE
Climate normal
+14
+12
15 September, Sunday. day, 13°; night, 11°; clear
16
+14
+12
16 September, mon
+14
+12
Feels like
+11
759 mmHg
83%
3.5
m/s
N
Climate normal
+13
+12
16 September, Monday. day, 14°; night, 12°; clear
17
+14
+14
17 September, tue
+14
+14
Feels like
+8
751 mmHg
84%
7.3
m/s
N
Climate normal
+13
+11
17 September, Tuesday. day, 14°; night, 14°; light rain
18
+14
+13
18 September, wed
+14
+13
Feels like
+12
741 mmHg
92%
4.4
m/s
E
Climate normal
+14
+12
18 September, Wednesday. day, 14°; night, 13°; rain
19
+13
+12
19 September, thu
+13
+12
Feels like
+7
746 mmHg
86%
8.8
m/s
W
Climate normal
+14
+12
19 September, Thursday. day, 13°; night, 12°; rain
20
+12
+10
20 September, fri
+12
+10
Feels like
+4
748 mmHg
85%
11.4
m/s
SW
Climate normal
+14
+13
20 September, Friday. day, 12°; night, 10°; rain
21
+12
+11
21 September, sat
+12
+11
Feels like
+5
750 mmHg
79%
7.4
m/s
SW
Climate normal
+14
+13
21 September, Saturday. day, 12°; night, 11°; mostly clear
22
+12
+11
22 September, sun
+12
+11
Feels like
+6
745 mmHg
82%
7
m/s
SE
Climate normal
+14
+12
22 September, Sunday. day, 12°; night, 11°; light rain
23
+13
+12
23 September, mon
+13
+12
Feels like
+9
746 mmHg
85%
4.3
m/s
S
Climate normal
+13
+12
23 September, Monday. day, 13°; night, 12°; light rain
24
+13
+13
24 September, tue
+13
+13
Feels like
+4
745 mmHg
86%
13.4
m/s
E
Climate normal
+14
+12
24 September, Tuesday. day, 13°; night, 13°; rain
25
+14
+12
25 September, wed
+14
+12
Feels like
+8
749 mmHg
88%
7.2
m/s
SE
Climate normal
+13
+12
25 September, Wednesday. day, 14°; night, 12°; light rain
26
+14
+15
26 September, thu
+14
+15
Feels like
+5
756 mmHg
85%
12.4
m/s
S
Climate normal
+15
+13
26 September, Thursday. day, 14°; night, 15°; light rain
27
+15
+14
27 September, fri
+15
+14
Feels like
+9
753 mmHg
90%
10.3
m/s
S
Climate normal
+15
+14
27 September, Friday. day, 15°; night, 14°; light rain
28
+15
+12
28 September, sat
+15
+12
Feels like
+5
747 mmHg
87%
14.2
m/s
SW
Climate normal
+15
+14
28 September, Saturday. day, 15°; night, 12°; rain
Average for 30 days
7
sunny days
17
days with precipitation
6
cloudy days
7 sunny days; 17 days with precipitation; 6 cloudy days;
82
%
air humidity
6.6
m/s
Wind
W
51
mm of precipitation
(6% of annual average)
+16
°C
Water temperature
air humidity 82%; 51 millimeters of precipitation (6% of annual average); Wind westerly 6.6 Meters per second; Water temperature +16°
Forecast in graphs
Temperature
Humidity, %
Wind, m/s
Pressure, mmHg
W
SE
E
N
NW
NW
N
NE
E
E
W
SW
SW
W
W
W
NE
N
N
E
W
SW
SW
SE
S
E
SE
S
S
SW
30
Average data for 10 years
31
1
September
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
Daytime temperature
Night-time temperature
