Weather Forecast for Caernarfon
Gwynedd, United Kingdom
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Current Weather - Caernarfon: 16°C
Current Weather - Caernarfon: 16°C
Gwynedd, United Kingdom
Cloudy
Feels like 13°C
Wind
12 km/h W
Humidity
62%
Pressure
1021 mb
UV Index
2
Visibility
10 km
Patchy rain nearby
Friday, September 11, 2026
High
16°C
Low
10°C
Rain Chance
55%
Hourly Forecast
16°C
16°C
15°C
14°C
12°C
10°C
10°C
10°C
10°C
Day Statistics
Maximum Wind
19 km/h
Humidity
84%
Precipitation
1 mm
UV Index
2
Visibility
7 km
Rain Chance
55%
Snow Chance
0%
Sun & Moon
Sunrise
06:44 AM
Sunset
07:43 PM
Moonrise
06:50 AM
Moonset
07:31 PM
Moon Phase
New Moon
Moon Illumination
0%
Air Quality
PM2.5
5.1
μg/m³
PM10
11.7
μg/m³
NO₂
1.9
μg/m³
O₃
65.3
μg/m³
SO₂
0.2
μg/m³
CO
186.7
μg/m³
Patchy rain nearby
Saturday, September 12, 2026
High
17°C
Low
11°C
Rain Chance
84%
Hourly Forecast
11°C
12°C
13°C
14°C
15°C
15°C
15°C
15°C
15°C
16°C
16°C
16°C
16°C
17°C
17°C
17°C
17°C
17°C
17°C
17°C
16°C
16°C
16°C
16°C
Day Statistics
Maximum Wind
34 km/h
Humidity
93%
Precipitation
3 mm
UV Index
1
Visibility
10 km
Rain Chance
84%
Snow Chance
0%
Sun & Moon
Sunrise
06:46 AM
Sunset
07:40 PM
Moonrise
08:21 AM
Moonset
07:42 PM
Moon Phase
New Moon
Moon Illumination
3%
Air Quality
PM2.5
4
μg/m³
PM10
9.3
μg/m³
NO₂
0.7
μg/m³
O₃
66.5
μg/m³
SO₂
0.1
μg/m³
CO
156.2
μg/m³
Overcast
Sunday, September 13, 2026
High
19°C
Low
13°C
Rain Chance
72%
Hourly Forecast
16°C
16°C
15°C
15°C
14°C
13°C
13°C
13°C
14°C
14°C
14°C
15°C
17°C
18°C
19°C
18°C
18°C
17°C
16°C
15°C
13°C
13°C
13°C
13°C
Day Statistics
Maximum Wind
12 km/h
Humidity
88%
Precipitation
1 mm
UV Index
3
Visibility
8 km
Rain Chance
72%
Snow Chance
0%
Sun & Moon
Sunrise
06:47 AM
Sunset
07:38 PM
Moonrise
09:50 AM
Moonset
07:54 PM
Moon Phase
Waxing Crescent
Moon Illumination
8%
Air Quality
PM2.5
2.4
μg/m³
PM10
4.7
μg/m³
NO₂
1.4
μg/m³
O₃
51.1
μg/m³
SO₂
0.1
μg/m³
CO
134.5
μg/m³
Partly Cloudy
Monday, September 14, 2026
High
20°C
Low
13°C
Rain Chance
35%
Hourly Forecast
13°C
13°C
13°C
13°C
14°C
14°C
14°C
15°C
15°C
16°C
17°C
17°C
17°C
18°C
19°C
20°C
19°C
19°C
18°C
18°C
18°C
18°C
17°C
17°C
Day Statistics
Maximum Wind
29 km/h
Humidity
93%
Precipitation
0 mm
UV Index
2
Visibility
9 km
Rain Chance
35%
Snow Chance
0%
Sun & Moon
Sunrise
06:49 AM
Sunset
07:35 PM
Moonrise
11:19 AM
Moonset
08:09 PM
Moon Phase
Waxing Crescent
Moon Illumination
14%
Air Quality
PM2.5
4.2
μg/m³
PM10
6.7
μg/m³
NO₂
2
μg/m³
O₃
47.9
μg/m³
SO₂
0.4
μg/m³
CO
101.1
μg/m³
Patchy rain nearby
Tuesday, September 15, 2026
High
18°C
Low
11°C
Rain Chance
83%
Hourly Forecast
18°C
18°C
16°C
16°C
17°C
17°C
17°C
16°C
16°C
16°C
16°C
15°C
15°C
17°C
17°C
17°C
17°C
16°C
15°C
14°C
13°C
12°C
11°C
11°C
Day Statistics
Maximum Wind
27 km/h
Humidity
87%
Precipitation
5 mm
UV Index
4
Visibility
10 km
Rain Chance
83%
Snow Chance
0%
Sun & Moon
Sunrise
06:51 AM
Sunset
07:33 PM
Moonrise
12:46 PM
Moonset
08:29 PM
Moon Phase
Waxing Crescent
Moon Illumination
23%
Air Quality
PM2.5
5.2
μg/m³
PM10
8.3
μg/m³
NO₂
2.1
μg/m³
O₃
64.1
μg/m³
SO₂
0.6
μg/m³
CO
171.9
μg/m³
Patchy rain nearby
Wednesday, September 16, 2026
High
15°C
Low
10°C
Rain Chance
39%
Hourly Forecast
11°C
10°C
11°C
11°C
11°C
11°C
12°C
13°C
13°C
13°C
13°C
13°C
13°C
14°C
14°C
14°C
15°C
14°C
14°C
13°C
13°C
12°C
12°C
11°C
Day Statistics
Maximum Wind
17 km/h
Humidity
82%
Precipitation
0 mm
UV Index
3
Visibility
9 km
Rain Chance
39%
Snow Chance
0%
Sun & Moon
Sunrise
06:52 AM
Sunset
07:30 PM
Moonrise
02:09 PM
Moonset
08:56 PM
Moon Phase
First Quarter
Moon Illumination
32%
Patchy rain nearby
Thursday, September 17, 2026
High
15°C
Low
9°C
Rain Chance
58%
Hourly Forecast
11°C
11°C
11°C
11°C
11°C
10°C
10°C
9°C
10°C
11°C
12°C
13°C
14°C
14°C
14°C
15°C
15°C
14°C
13°C
12°C
12°C
11°C
11°C
11°C
Day Statistics
Maximum Wind
16 km/h
Humidity
81%
Precipitation
1 mm
UV Index
3
Visibility
10 km
Rain Chance
58%
Snow Chance
0%
Sun & Moon
Sunrise
06:54 AM
Sunset
07:28 PM
Moonrise
03:21 PM
Moonset
09:35 PM
Moon Phase
First Quarter
Moon Illumination
42%
Solar Radiation Data
Shortwave Radiation
409.26
Diffuse Radiation
201.93
DNI
0
GTI
0
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