Llandaff (Cardiff) weather

Forecast days

Sunny intervals changing to heavy rain by early evening.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

7 day forecast for Llandaff

Today (16 September 2025)
Time
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Sunny intervals Sunny intervals Sunny intervals Cloudy Light rain Heavy rain Heavy rain Light rain Light rain Light rain
Chance of precipitation
30%
30%
30%
50%
70%
80%
80%
80%
70%
80%
Temperature
17°
16°
16°
16°
15°
14°
14°
14°
14°
14°
Feels like temperature (°C)
14°
14°
14°
14°
13°
13°
13°
14°
13°
13°
Wind direction and speed
W
14
W
13
W
13
W
11
WSW
9
WSW
7
WSW
5
WSW
4
SW
4
SW
5
Wind gust (mph)
30
29
27
24
19
17
11
8
10
11
Visibility
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
61%
64%
67%
70%
76%
83%
89%
91%
92%
91%
UV 4 2 1 1 1 1 - - - -
Wednesday (17 September 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain
Chance of precipitation
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
≥95%
90%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
80%
70%
70%
60%
Temperature (°C)
14°
14°
14°
14°
14°
14°
15°
15°
15°
16°
16°
17°
17°
18°
18°
18°
18°
18°
18°
18°
18°
17°
17°
17°
Feels like temperature (°C)
13°
13°
13°
13°
13°
13°
14°
14°
14°
14°
14°
15°
15°
16°
16°
16°
17°
17°
17°
17°
16°
16°
16°
16°
Wind direction and speed (mph)
SSW
5
SSW
5
S
6
S
7
S
7
S
8
SSW
8
SSW
10
SW
11
SW
12
SW
13
SW
13
SW
13
SW
14
SW
14
SW
14
SW
13
SW
12
SW
12
SW
11
SW
11
SW
10
SW
10
SW
10
Wind gust (mph)
12
14
17
20
22
23
24
30
32
32
32
32
32
30
30
29
28
26
27
26
25
24
24
24
Visibility (description)
M
M
M
M
M
M
M
M
M
G
G
G
G
G
G
G
G
G
G
G
G
G
VG
VG
Humidity
92%
94%
96%
96%
96%
96%
95%
94%
93%
93%
93%
93%
92%
92%
92%
92%
93%
93%
94%
95%
95%
95%
95%
94%
UV - - - - - - 1 1 1 1 2 1 2 2 1 1 1 1 1 1 - - - -
Thursday (18 September 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy
Chance of precipitation
60%
60%
60%
60%
60%
40%
40%
30%
20%
20%
10%
10%
10%
10%
20%
10%
10%
20%
10%
10%
10%
10%
10%
10%
Temperature (°C)
17°
17°
17°
17°
17°
17°
17°
17°
17°
18°
18°
19°
20°
20°
21°
21°
20°
20°
19°
19°
18°
18°
17°
17°
Feels like temperature (°C)
16°
16°
17°
17°
16°
17°
17°
16°
16°
16°
17°
17°
18°
18°
19°
18°
18°
18°
18°
18°
17°
17°
17°
17°
Wind direction and speed (mph)
SW
9
SW
9
SW
9
SW
9
SW
9
SW
9
SW
9
SSW
9
SSW
9
SSW
10
SSW
10
SW
11
SW
12
SW
12
SW
13
SW
13
SW
12
SW
11
SW
10
SW
10
SSW
9
SSW
8
SSW
7
SSW
7
Wind gust (mph)
24
24
25
25
25
25
25
25
26
27
28
28
28
28
29
28
27
25
23
23
23
22
19
17
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
E
E
E
E
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
94%
94%
93%
93%
93%
93%
92%
89%
88%
86%
85%
80%
76%
75%
75%
75%
75%
77%
78%
82%
84%
85%
86%
86%
UV - - - - - - 1 1 1 1 1 2 2 3 3 2 1 1 1 1 - - - -
Friday (19 September 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Overcast Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Light rain Light rain Light rain Cloudy
Chance of precipitation
20%
10%
20%
20%
20%
30%
30%
30%
30%
30%
30%
30%
30%
30%
50%
50%
50%
50%
60%
50%
60%
60%
50%
50%
Temperature (°C)
17°
17°
17°
17°
17°
17°
16°
16°
16°
16°
17°
18°
18°
19°
19°
19°
18°
18°
17°
17°
16°
16°
15°
15°
Feels like temperature (°C)
17°
17°
16°
16°
16°
16°
16°
16°
16°
16°
16°
17°
17°
18°
18°
18°
18°
17°
17°
16°
16°
15°
15°
15°
Wind direction and speed (mph)
SSW
6
SSW
6
S
6
S
6
S
6
S
6
S
6
SSW
5
SSW
5
S
6
SSW
7
SSW
8
SSW
8
SSW
9
SW
9
SW
9
SW
9
SW
9
SW
8
SW
7
WSW
6
WSW
5
SW
5
WSW
5
Wind gust (mph)
16
16
15
15
14
14
14
12
14
17
17
17
17
15
15
17
17
15
16
14
13
11
10
9
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
87%
87%
88%
88%
89%
90%
91%
91%
90%
89%
88%
86%
83%
79%
77%
79%
80%
83%
85%
87%
89%
90%
92%
92%
UV - - - - - - 1 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - -
Saturday (20 September 2025)
Time
00:00
01:00
02:00
03:00
04:00
05:00
06:00
07:00
08:00
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00
Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
Chance of precipitation
40%
40%
40%
40%
40%
40%
40%
40%
50%
40%
50%
50%
60%
50%
60%
60%
60%
50%
50%
50%
40%
40%
40%
40%
Temperature (°C)
15°
15°
14°
14°
14°
14°
14°
13°
13°
14°
15°
15°
16°
16°
16°
16°
16°
15°
15°
14°
13°
13°
12°
12°
Feels like temperature (°C)
15°
14°
14°
14°
14°
14°
13°
13°
13°
13°
13°
14°
14°
14°
14°
14°
14°
13°
13°
12°
12°
11°
11°
10°
Wind direction and speed (mph)
WSW
4
WSW
4
WSW
4
WSW
4
WSW
4
WSW
5
W
5
WSW
5
W
6
NNW
7
NW
9
WNW
9
WNW
9
WNW
10
NW
10
NW
11
NW
11
NW
11
NW
10
NW
10
NW
9
NW
8
NW
8
NW
9
Wind gust (mph)
8
8
8
8
8
8
9
10
11
12
15
15
15
21
21
22
21
22
20
20
17
16
17
16
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
92%
92%
92%
92%
92%
92%
92%
91%
89%
86%
83%
79%
78%
74%
72%
69%
71%
71%
73%
78%
79%
81%
82%
83%
UV - - - - - - 1 1 1 1 2 2 3 3 2 2 1 1 1 1 - - - -
Sunday (21 September 2025)
Time
00:00
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
40%
30%
30%
40%
30%
30%
20%
10%
10%
Temperature (°C)
12°
11°
11°
10°
12°
14°
14°
13°
11°
Feels like temperature (°C)
10°
10°
10°
11°
12°
10°
Wind direction and speed (mph)
NW
9
NW
9
NW
10
NNW
10
N
12
N
13
NNE
13
NNE
12
NNE
10
Wind gust (mph)
16
16
17
21
24
23
22
18
17
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
84%
84%
84%
85%
75%
60%
54%
60%
68%
UV - - - 1 2 4 2 1 -
Monday (22 September 2025)
Time
01:00
04:00
07:00
10:00
13:00
16:00
19:00
22:00
Weather symbols Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night
Chance of precipitation
10%
10%
10%
<5%
<5%
<5%
10%
10%
Temperature (°C)
10°
12°
14°
15°
13°
12°
Feels like temperature (°C)
12°
12°
11°
10°
Wind direction and speed (mph)
NNE
10
NNE
10
NNE
9
NNE
11
NNE
12
NNE
12
NNE
11
NNE
9
Wind gust (mph)
14
13
13
17
17
16
14
12
Visibility (description)
VG
VG
VG
VG
VG
VG
VG
VG
Humidity
72%
76%
77%
66%
54%
52%
58%
67%
UV - - 1 2 4 2 1 -

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Wales weather forecast

Headline:

Remaining changeable with rain tonight.

Today:

A drier day albeit still the chance of a few isolated showers. Sunny spells are likely through the morning, but any sunshine turning hazy through the afternoon. Still breezy, though winds easing through the morning. Maximum temperature 17 °C.

Tonight:

Cloudy with showery rain affecting southern and western counties through the evening, before a band of heavier and more persistent spreads eastwards overnight. Increasingly windy by dawn. Minimum temperature 11 °C.

Wednesday:

Heavy, persistent rain clearing eastwards through the morning, though remaining mostly cloudy with outbreaks of patchy rain and drizzle throughout the day, perhaps turning heavy at times. Breezy. Maximum temperature 20 °C.

Outlook for Thursday to Saturday:

Remaining changeable with showers or longer spells of rain at times, though brighter interludes are possible. Often breezy. A little milder and more humid by the end of the week.

Updated:

UK long range weather forecast

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