Weather in Belfast in Summer
| June | July | August | ||||
| Average day temperature: | 61.0°F | 63.2°F | 62.8°F | |||
| Average night temperature: | 50.7°F | 53.1°F | 53.1°F | |||
| Sea water temperature: | 53.9°F | 56.4°F | 57.6°F | |||
| Number of sunny days: | 5 days | 3 days | 3 days | |||
| Day length: | 16.9 - 17.3 h. | 15.9 - 17.2 h. | 13.8 - 15.8 h. | |||
| Number of rainy days: | 7 days | 7 days | 7 days | |||
| Precipitation totals: | 3.2 in. | 3.6 in. | 3.6 in. | |||
Day & Night air temperature, °F
June
July
August
0
10
20
30
40
50
60
70
80
62.9
63.3
61.4
53.3
53.5
51.4
| Day temperature | Night temperature |
Sea water temperature, °F
June
July
August
0
9
18
27
36
45
54
63
72
57.6
56.4
53.9
Precipitation total, in.
June
July
August
0.0
0.6
1.3
1.9
2.6
3.2
3.9
4.5
3.6
3.8
3.1
Sunny, partly cloudy and cloudy days
June
July
August
0
5
10
15
20
25
30
35
20
20
18
8
9
7
3
2
4
| Cloudy days | Partly cloudy days | Sunny days |
Wind speed, mph
June
July
August
0.0
1.6
3.2
4.8
6.3
7.9
9.5
11.1
12.7
9.2
8.3
8.9
Average sunny hours
June
July
August
0
1
2
3
4
5
6
7
8
5.3
5.4
6.8
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
Best time for vacation in Belfast
Belfast on a weather map
Leaflet | Tiles © Esri
Places in United Kingdom:
Name
°F
24 Hours Forecast
Belfast
Local time: 09:18
April 26, saturday
1200
50°F
N
7 mph
7 mph
1500
54°F
NW
7 mph
7 mph
1800
54°F
NW
9 mph
9 mph
2100
45°F
NW
7 mph
7 mph
April 27, sunday
0000
46°F
N
6 mph
6 mph
0300
46°F
N
7 mph
7 mph
0600
46°F
N
7 mph
7 mph
0900
55°F
NE
12 mph
12 mph
