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Belfast weather in August

Weather in Belfast: August

Average day temperature: 62.8°F
Average night temperature: 53.1°F
Sea water temperature: 57.6°F
Number of sunny days: 3 days
Day length: 13.8 - 15.8 hours
Number of rainy days: 7 days
Precipitation totals: 3.6 in.

Air temperature in August, °F

Show year:
2024
2023
2022
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3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
11
22
33
44
55
66
77
88
Day temperature   
Night temperature

The highest day temperature during August of 2024 was 69°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during August were 62.1°F and 52.7°F.

Sea water temperature in Belfast in August, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
53
55
57
59
61
63
65
67

The average sea water temperature in August of 2024 was 58.7°F. The highest and lowest sea temperatures during the month were 60.3°F and 57.9°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
10%
26%
65%

Mostly all days in August are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in August, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.6
1.3
1.9
2.6
3.2
3.9
4.5
2.6
2.6
2.3
2.2
3.8
3.1
2.2
2.0
2.4
2.7
2.2
2.6
2.6
2.3
2.2
3.6
3.8
3.1
2.2
2.0
2.4
2.7
2.2

Precipitation total value in Belfast in August is 3.6 in. Other months of the year show relatively similar values.

Wind speed in August, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.3
4.6
6.9
9.2
11.5
13.8
16.0
12.1
11.2
11.1
9.9
8.3
8.9
9.1
10.1
10.8
13.4
11.3
12.1
11.2
11.1
9.9
9.2
8.3
8.9
9.1
10.1
10.8
13.4
11.3

The average wind speed value in August is 9.2 mph It makes August one of the least windy months of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.2
2.3
3.5
4.7
5.8
7.0
8.2
9.4
2.0
2.8
3.2
4.8
5.4
6.8
5.6
5.3
4.3
2.7
3.0
2.0
2.8
3.2
4.8
5.3
5.4
6.8
5.6
5.3
4.3
2.7
3.0

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 5.3.

Best time for vacation in Belfast

Sunniest months:
April 6 days
June 5 days
May 5 days
Warmest months:
July 63.2 °F
August 62.8 °F
June 61.0 °F
Warmest sea temp:
August 57.6 °F
September 57.6 °F
July 56.4 °F
Coldest months:
January 43.8 °F
February 45.5 °F
December 45.6 °F
Rainiest months:
June 7 days
July 7 days
August 7 days
Windiest months:
February 13.3 mph
December 13.3 mph
January 12.3 mph

Belfast on a weather map

Leaflet | Tiles © Esri
Places in United Kingdom:
Name
°F
+50°F
+50°F
+52°F
+55°F
+50°F
+66°F
+46°F
+50°F
+52°F
+55°F
+52°F
+50°F
+52°F
+48°F
+46°F
24 Hours Forecast
Belfast
Local time: 09:41
April 26, saturday
1200
50°F
N
7 mph
1500
54°F
NW
7 mph
1800
54°F
NW
9 mph
2100
45°F
NW
7 mph
April 27, sunday
0000
46°F
N
6 mph
0300
46°F
N
7 mph
0600
46°F
N
7 mph
0900
55°F
NE
12 mph
Units of measurement: °C / °F