Weather Forecast for Holyhead
Isle of Anglesey, United Kingdom
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Current Weather - Holyhead: 18°C
Current Weather - Holyhead: 18°C
Isle of Anglesey, United Kingdom
Overcast
Feels like 18°C
Wind
29 km/h SW
Humidity
83%
Pressure
1025 mb
UV Index
3
Visibility
10 km
Partly Cloudy
Saturday, July 04, 2026
High
18°C
Low
14°C
Rain Chance
42%
Hourly Forecast
17°C
17°C
17°C
18°C
18°C
18°C
17°C
17°C
17°C
16°C
16°C
16°C
Day Statistics
Maximum Wind
30 km/h
Humidity
89%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
42%
Snow Chance
0%
Sun & Moon
Sunrise
04:57 AM
Sunset
09:48 PM
Moonrise
11:51 PM
Moonset
09:54 AM
Moon Phase
Waning Gibbous
Moon Illumination
70%
Air Quality
PM2.5
3.4
μg/m³
PM10
7.8
μg/m³
NO₂
2
μg/m³
O₃
43.2
μg/m³
SO₂
0.3
μg/m³
CO
90.5
μg/m³
Sunny
Sunday, July 05, 2026
High
18°C
Low
15°C
Rain Chance
28%
Hourly Forecast
16°C
16°C
15°C
15°C
15°C
15°C
15°C
15°C
15°C
15°C
16°C
16°C
17°C
17°C
17°C
17°C
18°C
18°C
18°C
17°C
17°C
16°C
15°C
15°C
Day Statistics
Maximum Wind
26 km/h
Humidity
89%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
28%
Snow Chance
0%
Sun & Moon
Sunrise
04:58 AM
Sunset
09:47 PM
Moonrise
11:59 PM
Moonset
11:07 AM
Moon Phase
Last Quarter
Moon Illumination
60%
Air Quality
PM2.5
3.5
μg/m³
PM10
7.4
μg/m³
NO₂
2.5
μg/m³
O₃
43.3
μg/m³
SO₂
0.3
μg/m³
CO
88.2
μg/m³
Sunny
Monday, July 06, 2026
High
17°C
Low
14°C
Rain Chance
20%
Hourly Forecast
15°C
15°C
15°C
15°C
15°C
14°C
15°C
15°C
16°C
16°C
16°C
16°C
15°C
16°C
17°C
17°C
17°C
17°C
17°C
16°C
17°C
17°C
16°C
17°C
Day Statistics
Maximum Wind
22 km/h
Humidity
86%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
20%
Snow Chance
0%
Sun & Moon
Sunrise
04:59 AM
Sunset
09:46 PM
Moonrise
Does not rise today
Moonset
12:20 PM
Moon Phase
Last Quarter
Moon Illumination
49%
Air Quality
PM2.5
3.9
μg/m³
PM10
7.5
μg/m³
NO₂
2.1
μg/m³
O₃
46.8
μg/m³
SO₂
0.3
μg/m³
CO
92.2
μg/m³
Overcast
Tuesday, July 07, 2026
High
18°C
Low
16°C
Rain Chance
44%
Hourly Forecast
17°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
16°C
17°C
17°C
18°C
18°C
18°C
17°C
17°C
16°C
16°C
Day Statistics
Maximum Wind
18 km/h
Humidity
86%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
44%
Snow Chance
0%
Sun & Moon
Sunrise
05:00 AM
Sunset
09:46 PM
Moonrise
12:07 AM
Moonset
01:35 PM
Moon Phase
Last Quarter
Moon Illumination
39%
Air Quality
PM2.5
7.1
μg/m³
PM10
9.8
μg/m³
NO₂
3.5
μg/m³
O₃
58.6
μg/m³
SO₂
1.2
μg/m³
CO
91.5
μg/m³
Sunny
Wednesday, July 08, 2026
High
19°C
Low
14°C
Rain Chance
14%
Hourly Forecast
16°C
16°C
15°C
14°C
15°C
14°C
14°C
15°C
16°C
17°C
17°C
17°C
18°C
18°C
18°C
19°C
18°C
19°C
19°C
19°C
18°C
17°C
16°C
16°C
Day Statistics
Maximum Wind
11 km/h
Humidity
83%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
14%
Snow Chance
0%
Sun & Moon
Sunrise
05:01 AM
Sunset
09:45 PM
Moonrise
12:17 AM
Moonset
02:54 PM
Moon Phase
Waning Crescent
Moon Illumination
28%
Air Quality
PM2.5
9.2
μg/m³
PM10
12.7
μg/m³
NO₂
6.4
μg/m³
O₃
42.9
μg/m³
SO₂
1.7
μg/m³
CO
115.6
μg/m³
Sunny
Thursday, July 09, 2026
High
21°C
Low
15°C
Rain Chance
9%
Hourly Forecast
16°C
15°C
15°C
15°C
15°C
16°C
16°C
17°C
18°C
19°C
20°C
20°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
20°C
19°C
17°C
18°C
Day Statistics
Maximum Wind
10 km/h
Humidity
76%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
9%
Snow Chance
0%
Sun & Moon
Sunrise
05:02 AM
Sunset
09:44 PM
Moonrise
12:29 AM
Moonset
04:18 PM
Moon Phase
Waning Crescent
Moon Illumination
19%
Partly Cloudy
Friday, July 10, 2026
High
20°C
Low
17°C
Rain Chance
12%
Hourly Forecast
18°C
19°C
18°C
18°C
18°C
18°C
17°C
17°C
18°C
18°C
19°C
19°C
19°C
19°C
19°C
19°C
19°C
20°C
20°C
20°C
19°C
19°C
18°C
18°C
Day Statistics
Maximum Wind
13 km/h
Humidity
80%
Precipitation
0 mm
UV Index
6
Visibility
10 km
Rain Chance
12%
Snow Chance
0%
Sun & Moon
Sunrise
05:03 AM
Sunset
09:44 PM
Moonrise
12:45 AM
Moonset
05:46 PM
Moon Phase
Waning Crescent
Moon Illumination
12%
Solar Radiation Data
Shortwave Radiation
266.36
Diffuse Radiation
142.72
DNI
0
GTI
0
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