Weather Forecast for Caernarfon
Gwynedd, United Kingdom
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Current Weather - Caernarfon: 17°C
Current Weather - Caernarfon: 17°C
Gwynedd, United Kingdom
Sunny
Feels like 14°C
Wind
16 km/h NE
Humidity
55%
Pressure
1017 mb
UV Index
2
Visibility
10 km
Sunny
Friday, August 21, 2026
High
17°C
Low
9°C
Rain Chance
70%
Hourly Forecast
16°C
16°C
15°C
13°C
11°C
11°C
10°C
Day Statistics
Maximum Wind
17 km/h
Humidity
81%
Precipitation
4 mm
UV Index
4
Visibility
9 km
Rain Chance
70%
Snow Chance
0%
Sun & Moon
Sunrise
06:08 AM
Sunset
08:32 PM
Moonrise
05:33 PM
Moonset
11:41 PM
Moon Phase
First Quarter
Moon Illumination
69%
Air Quality
PM2.5
2.4
μg/m³
PM10
4.4
μg/m³
NO₂
2.3
μg/m³
O₃
58.5
μg/m³
SO₂
0.2
μg/m³
CO
154.3
μg/m³
Sunny
Saturday, August 22, 2026
High
17°C
Low
9°C
Rain Chance
23%
Hourly Forecast
10°C
10°C
10°C
9°C
9°C
10°C
9°C
10°C
12°C
13°C
14°C
15°C
15°C
15°C
17°C
17°C
17°C
17°C
16°C
15°C
13°C
11°C
10°C
10°C
Day Statistics
Maximum Wind
14 km/h
Humidity
78%
Precipitation
0 mm
UV Index
3
Visibility
9 km
Rain Chance
23%
Snow Chance
0%
Sun & Moon
Sunrise
06:10 AM
Sunset
08:29 PM
Moonrise
06:24 PM
Moonset
Does not set today
Moon Phase
Waxing Gibbous
Moon Illumination
78%
Air Quality
PM2.5
4
μg/m³
PM10
7.2
μg/m³
NO₂
1.4
μg/m³
O₃
64.5
μg/m³
SO₂
0.2
μg/m³
CO
158.8
μg/m³
Sunny
Sunday, August 23, 2026
High
19°C
Low
9°C
Rain Chance
11%
Hourly Forecast
10°C
10°C
10°C
10°C
10°C
9°C
9°C
10°C
12°C
14°C
16°C
17°C
18°C
19°C
19°C
18°C
18°C
18°C
17°C
15°C
13°C
12°C
11°C
11°C
Day Statistics
Maximum Wind
12 km/h
Humidity
77%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
11%
Snow Chance
0%
Sun & Moon
Sunrise
06:11 AM
Sunset
08:27 PM
Moonrise
07:01 PM
Moonset
12:38 AM
Moon Phase
Waxing Gibbous
Moon Illumination
86%
Air Quality
PM2.5
5.8
μg/m³
PM10
8
μg/m³
NO₂
2
μg/m³
O₃
64.1
μg/m³
SO₂
0.3
μg/m³
CO
157.3
μg/m³
Overcast
Monday, August 24, 2026
High
23°C
Low
10°C
Rain Chance
8%
Hourly Forecast
11°C
11°C
11°C
11°C
11°C
11°C
10°C
11°C
14°C
17°C
19°C
21°C
22°C
23°C
23°C
23°C
23°C
23°C
22°C
20°C
19°C
18°C
18°C
18°C
Day Statistics
Maximum Wind
23 km/h
Humidity
60%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
8%
Snow Chance
0%
Sun & Moon
Sunrise
06:13 AM
Sunset
08:25 PM
Moonrise
07:26 PM
Moonset
01:46 AM
Moon Phase
Waxing Gibbous
Moon Illumination
93%
Air Quality
PM2.5
10.2
μg/m³
PM10
11
μg/m³
NO₂
8.2
μg/m³
O₃
64.4
μg/m³
SO₂
0.8
μg/m³
CO
112.9
μg/m³
Overcast
Tuesday, August 25, 2026
High
25°C
Low
13°C
Rain Chance
16%
Hourly Forecast
17°C
16°C
15°C
13°C
13°C
13°C
13°C
14°C
16°C
17°C
17°C
20°C
22°C
21°C
24°C
25°C
23°C
19°C
20°C
21°C
18°C
18°C
19°C
17°C
Day Statistics
Maximum Wind
28 km/h
Humidity
61%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
16%
Snow Chance
0%
Sun & Moon
Sunrise
06:15 AM
Sunset
08:23 PM
Moonrise
07:44 PM
Moonset
03:00 AM
Moon Phase
Full Moon
Moon Illumination
97%
Air Quality
PM2.5
8.9
μg/m³
PM10
11.7
μg/m³
NO₂
5.2
μg/m³
O₃
71.9
μg/m³
SO₂
1.2
μg/m³
CO
167
μg/m³
Light rain shower
Wednesday, August 26, 2026
High
22°C
Low
14°C
Rain Chance
87%
Hourly Forecast
15°C
17°C
14°C
14°C
14°C
15°C
15°C
16°C
16°C
16°C
17°C
17°C
18°C
18°C
19°C
21°C
22°C
20°C
19°C
18°C
17°C
16°C
15°C
15°C
Day Statistics
Maximum Wind
16 km/h
Humidity
83%
Precipitation
11 mm
UV Index
5
Visibility
10 km
Rain Chance
87%
Snow Chance
0%
Sun & Moon
Sunrise
06:16 AM
Sunset
08:20 PM
Moonrise
07:57 PM
Moonset
04:15 AM
Moon Phase
Full Moon
Moon Illumination
100%
Light rain shower
Thursday, August 27, 2026
High
19°C
Low
15°C
Rain Chance
86%
Hourly Forecast
15°C
15°C
15°C
15°C
15°C
15°C
15°C
15°C
16°C
17°C
18°C
18°C
18°C
18°C
19°C
19°C
19°C
18°C
17°C
16°C
16°C
15°C
15°C
15°C
Day Statistics
Maximum Wind
22 km/h
Humidity
85%
Precipitation
7 mm
UV Index
4
Visibility
10 km
Rain Chance
86%
Snow Chance
0%
Sun & Moon
Sunrise
06:18 AM
Sunset
08:18 PM
Moonrise
08:07 PM
Moonset
05:30 AM
Moon Phase
Full Moon
Moon Illumination
100%
Solar Radiation Data
Shortwave Radiation
578.76
Diffuse Radiation
200.81
DNI
0
GTI
0
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