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Past Weather in Cardiff, Wales, United Kingdom — May 2018

Currently: 70 °F. Passing clouds. (Weather station: Wales Airport, United Kingdom). See more current weather

May 2018 Weather in Cardiff — Graph

°F
Time
Wind
(mph)
Temp
(°F)
36
39
42
45
48
51
54
57
60
63
66
69
72
Tue, May 1
Lo:37
12 am
Hi:43
7
Lo:45
6 am
Hi:52
9
Lo:50
12 pm
Hi:55
12
Lo:46
6 pm
Hi:50
16
Wed, May 2
Lo:46
12 am
Hi:50
16
Lo:48
6 am
Hi:52
16
Lo:52
12 pm
Hi:54
21
Lo:46
6 pm
Hi:50
12
Thu, May 3
Lo:43
12 am
Hi:46
7
Lo:43
6 am
Hi:54
8
Lo:52
12 pm
Hi:57
12
Lo:50
6 pm
Hi:52
10
Fri, May 4
Lo:50
12 am
Hi:50
3
Lo:50
6 am
Hi:55
4
Lo:55
12 pm
Hi:57
6
Lo:52
6 pm
Hi:57
4
Sat, May 5
Lo:45
12 am
Hi:52
4
Lo:46
6 am
Hi:63
4
Lo:59
12 pm
Hi:66
6
Lo:48
6 pm
Hi:63
10
Sun, May 6
Lo:45
12 am
Hi:48
8
Lo:45
6 am
Hi:63
4
Lo:64
12 pm
Hi:72
6
Lo:54
6 pm
Hi:70
6
Mon, May 7
Lo:48
12 am
Hi:52
6
Lo:50
6 am
Hi:70
4
Lo:63
12 pm
Hi:72
6
Lo:48
6 pm
Hi:59
13
Tue, May 8
Lo:48
12 am
Hi:48
13
Lo:48
6 am
Hi:54
11
Lo:52
12 pm
Hi:55
15
Lo:48
6 pm
Hi:54
12
Wed, May 9
Lo:46
12 am
Hi:48
8
Lo:50
6 am
Hi:55
7
Lo:52
12 pm
Hi:55
9
Lo:48
6 pm
Hi:52
9
Thu, May 10
Lo:43
12 am
Hi:48
9
Lo:43
6 am
Hi:54
13
Lo:54
12 pm
Hi:55
16
Lo:45
6 pm
Hi:54
7
Fri, May 11
Lo:43
12 am
Hi:48
9
Lo:46
6 am
Hi:55
16
Lo:54
12 pm
Hi:55
12
Lo:43
6 pm
Hi:54
10
Sat, May 12
Lo:41
12 am
Hi:43
4
Lo:41
6 am
Hi:52
4
Lo:52
12 pm
Hi:55
5
Lo:46
6 pm
Hi:52
6
Sun, May 13
Lo:41
12 am
Hi:46
7
Lo:41
6 am
Hi:57
11
Lo:54
12 pm
Hi:57
15
Lo:45
6 pm
Hi:54
12
Mon, May 14
Lo:41
12 am
Hi:45
6
Lo:39
6 am
Hi:57
9
Lo:57
12 pm
Hi:59
15
Lo:48
6 pm
Hi:55
12
Tue, May 15
Lo:46
12 am
Hi:48
8
Lo:46
6 am
Hi:57
10
Lo:55
12 pm
Hi:61
12
Lo:55
6 pm
Hi:61
6
Wed, May 16
Lo:55
12 am
Hi:59
6
Lo:55
6 am
Hi:57
9
Lo:59
12 pm
Hi:61
14
Lo:52
6 pm
Hi:59
12
Thu, May 17
Lo:46
12 am
Hi:52
15
Lo:46
6 am
Hi:55
15
Lo:57
12 pm
Hi:63
10
Lo:52
6 pm
Hi:61
5
Fri, May 18
Lo:43
12 am
Hi:50
6
Lo:46
6 am
Hi:57
7
Lo:57
12 pm
Hi:61
6
Lo:46
6 pm
Hi:59
8
Sat, May 19
Lo:45
12 am
Hi:48
4
Lo:46
6 am
Hi:61
4
Lo:63
12 pm
Hi:68
4
Lo:50
6 pm
Hi:66
6
Sun, May 20
Lo:45
12 am
Hi:52
4
Lo:48
6 am
Hi:64
5
Lo:64
12 pm
Hi:70
6
Lo:52
6 pm
Hi:68
4
Mon, May 21
Lo:48
12 am
Hi:52
4
Lo:50
6 am
Hi:66
6
Lo:66
12 pm
Hi:70
8
Lo:57
6 pm
Hi:66
7
Tue, May 22
Lo:54
12 am
Hi:63
4
Lo:55
6 am
Hi:63
5
Lo:63
12 pm
Hi:66
9
Lo:61
6 pm
Hi:66
7
Wed, May 23
Lo:52
12 am
Hi:59
9
Lo:52
6 am
Hi:61
13
Lo:63
12 pm
Hi:70
11
Lo:63
6 pm
Hi:70
12
Thu, May 24
Lo:52
12 am
Hi:61
14
Lo:52
6 am
Hi:57
14
Lo:54
12 pm
Hi:57
11
Lo:55
6 pm
Hi:57
4
Fri, May 25
Lo:54
12 am
Hi:55
5
Lo:54
6 am
Hi:57
4
Lo:55
12 pm
Hi:59
5
Lo:54
6 pm
Hi:57
4
Sat, May 26
Lo:55
12 am
Hi:57
9
Lo:55
6 am
Hi:59
13
Lo:59
12 pm
Hi:70
18
Lo:63
6 pm
Hi:72
23
Sun, May 27
Lo:57
12 am
Hi:63
20
Lo:57
6 am
Hi:61
15
Lo:63
12 pm
Hi:70
12
Lo:61
6 pm
Hi:70
3
Mon, May 28
Lo:57
12 am
Hi:59
4
Lo:59
6 am
Hi:66
5
Lo:66
12 pm
Hi:70
12
Lo:63
6 pm
Hi:68
9
Tue, May 29
Lo:59
12 am
Hi:64
11
Lo:59
6 am
Hi:64
16
Lo:64
12 pm
Hi:68
13
Lo:63
6 pm
Hi:66
11
Wed, May 30
Lo:59
12 am
Hi:63
12
Lo:57
6 am
Hi:59
11
Lo:59
12 pm
Hi:61
9
Lo:59
6 pm
Hi:61
8
Thu, May 31
Lo:59
12 am
Hi:61
6
Lo:61
6 am
Hi:66
8
Lo:64
12 pm
Hi:70
5
Lo:61
6 pm
Hi:63
2
Tuesday, May 1, 2018, 12:00 am — 6:00 am
43 / 37 °F
Mostly cloudy.
Humidity: 87%
Barometer: 29.85 "Hg
NW
Wind: 7.457 mph

High & Low Weather Summary for May 2018

 TemperatureHumidityPressure
High72 °F (May 6, 4:50 pm)100% (May 2, 8:20 am)30.39 "Hg (May 2, 8:20 am)
Low37 °F (May 1, 1:20 am)32% (May 17, 4:50 pm)29.47 "Hg (May 2, 5:20 am)
Average55 °F82%30.06 "Hg
* Reported May 1 12:20 am — May 31 11:50 pm, Cardiff. Weather by CustomWeather, © 2025

Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records

Cardiff Weather History for May 1, 2018

Scroll right to see more
 ConditionsComfort  
Time TempWeatherWind HumidityBarometerVisibility
12:20 am
Tue, May 1
39 °FChilly.9 mph87%29.86 "HgN/A
12:50 am39 °FChilly.10 mph81%29.86 "HgN/A
1:20 am37 °FChilly.9 mph87%29.86 "HgN/A
1:50 am37 °FChilly.8 mph87%29.86 "HgN/A
2:20 am37 °FChilly.8 mph87%29.86 "HgN/A
2:50 am37 °FChilly.7 mph87%29.86 "HgN/A
3:20 am37 °FPassing clouds.7 mph87%29.86 "HgN/A
3:50 am37 °FPassing clouds.7 mph87%29.83 "HgN/A
4:20 am39 °FOvercast.6 mph87%29.83 "HgN/A
4:50 am41 °FOvercast.5 mph87%29.83 "HgN/A
5:20 am43 °FMostly cloudy.5 mph87%29.83 "HgN/A
5:50 am43 °FPartly sunny.7 mph93%29.83 "HgN/A
6:20 am45 °FPartly sunny.10 mph93%29.83 "HgN/A
6:50 am46 °FScattered clouds.7 mph87%29.83 "HgN/A
7:50 am48 °FCool.9 mph82%29.83 "HgN/A
8:20 am48 °FCool.10 mph82%29.83 "HgN/A
8:50 am48 °FCool.10 mph82%29.83 "HgN/A
9:20 am50 °FCool.9 mph76%29.83 "HgN/A
9:50 am50 °FCool.10 mph76%29.83 "HgN/A
10:20 am52 °FCool.10 mph72%29.83 "HgN/A
10:50 am52 °FCool.10 mph67%29.80 "HgN/A
11:20 am52 °FPartly sunny.8 mph67%29.80 "HgN/A
11:50 am52 °FScattered clouds.9 mph67%29.80 "HgN/A
12:20 pm54 °FCool.8 mph63%29.80 "HgN/A
1:20 pm52 °FCool.12 mph67%29.77 "HgN/A
2:20 pm54 °FScattered clouds.13 mph63%29.77 "HgN/A
2:50 pm52 °FPassing clouds.10 mph72%29.77 "HgN/A
3:20 pm55 °FRefreshingly cool.10 mph59%29.74 "HgN/A
3:50 pm54 °FCool.12 mph63%29.74 "HgN/A
4:50 pm50 °FLight rain. Partly sunny.16 mph71%29.74 "HgN/A
5:50 pm50 °FLight rain. Mostly cloudy.13 mph76%29.71 "HgN/A
6:20 pm50 °FLight rain. Mostly cloudy.15 mph76%29.71 "HgN/A
6:50 pm50 °FMostly cloudy.14 mph76%29.71 "HgN/A
7:20 pm50 °FPartly sunny.15 mph76%29.68 "HgN/A
7:50 pm48 °FLight rain. Mostly cloudy.14 mph82%29.68 "HgN/A
8:20 pm48 °FLight rain. Mostly cloudy.15 mph82%29.68 "HgN/A
8:50 pm48 °FLight rain. Passing clouds.14 mph82%29.68 "HgN/A
9:20 pm48 °FLight rain. Mostly cloudy.14 mph82%29.68 "Hg4 mi
9:50 pm46 °FLight rain. Overcast.14 mph87%29.68 "Hg6 mi
10:20 pm46 °FLight rain. Overcast.17 mph87%29.65 "Hg6 mi
10:50 pm46 °FLight rain. Partly cloudy.18 mph93%29.65 "Hg6 mi
11:20 pm46 °FLight rain. Overcast.20 mph93%29.62 "HgN/A
11:50 pm46 °FLight rain. Mostly cloudy.21 mph93%29.62 "Hg4 mi
Weather by CustomWeather, © 2025

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