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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Belfast, UKN
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September
Average Temperature
High
15°
Feels 14
Low
10°
Feels 8
Average Precipitation
13 Days
Rain amount
70.5mm
Snow amount
0cm
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Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
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
16°
28
17°
29
18°
30
20°
Forecast
Sunday, September 27, 2026
Day
16°
Feels 15
Wind
23 km/h S
Gust
35 km/h
Humidity
60%
P.O.P
100%
Rain
~10 mm
Night
8°
Feels 7
Wind
17 km/h W
Gust
25 km/h
Humidity
85%
P.O.P
10%
Historical Averages
Sep 27
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.