Weather Forecast for Caernarfon
Gwynedd, United Kingdom
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Current Weather - Caernarfon: 19°C
Current Weather - Caernarfon: 19°C
Gwynedd, United Kingdom
Patchy rain nearby
Feels like 19°C
Wind
9 km/h NW
Humidity
89%
Pressure
1019 mb
UV Index
2
Visibility
10 km
Patchy rain nearby
Friday, August 14, 2026
High
20°C
Low
12°C
Rain Chance
39%
Hourly Forecast
19°C
19°C
18°C
17°C
18°C
17°C
15°C
13°C
12°C
Day Statistics
Maximum Wind
14 km/h
Humidity
87%
Precipitation
0 mm
UV Index
2
Visibility
9 km
Rain Chance
39%
Snow Chance
0%
Sun & Moon
Sunrise
05:56 AM
Sunset
08:47 PM
Moonrise
07:54 AM
Moonset
09:13 PM
Moon Phase
Waxing Crescent
Moon Illumination
5%
Air Quality
PM2.5
3
μg/m³
PM10
6
μg/m³
NO₂
1.8
μg/m³
O₃
46.2
μg/m³
SO₂
0.2
μg/m³
CO
114.3
μg/m³
Sunny
Saturday, August 15, 2026
High
18°C
Low
9°C
Rain Chance
17%
Hourly Forecast
12°C
12°C
12°C
13°C
12°C
13°C
13°C
14°C
15°C
16°C
17°C
17°C
18°C
18°C
18°C
18°C
18°C
17°C
17°C
16°C
14°C
10°C
10°C
9°C
Day Statistics
Maximum Wind
21 km/h
Humidity
73%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
17%
Snow Chance
0%
Sun & Moon
Sunrise
05:58 AM
Sunset
08:45 PM
Moonrise
09:26 AM
Moonset
09:24 PM
Moon Phase
Waxing Crescent
Moon Illumination
11%
Air Quality
PM2.5
3.4
μg/m³
PM10
7.1
μg/m³
NO₂
1.5
μg/m³
O₃
51.5
μg/m³
SO₂
0.2
μg/m³
CO
117.8
μg/m³
Partly Cloudy
Sunday, August 16, 2026
High
19°C
Low
9°C
Rain Chance
10%
Hourly Forecast
9°C
9°C
9°C
9°C
10°C
10°C
11°C
11°C
14°C
15°C
16°C
18°C
19°C
19°C
17°C
18°C
17°C
17°C
17°C
17°C
15°C
14°C
12°C
11°C
Day Statistics
Maximum Wind
10 km/h
Humidity
72%
Precipitation
0 mm
UV Index
2
Visibility
10 km
Rain Chance
10%
Snow Chance
0%
Sun & Moon
Sunrise
05:59 AM
Sunset
08:42 PM
Moonrise
10:54 AM
Moonset
09:36 PM
Moon Phase
Waxing Crescent
Moon Illumination
18%
Air Quality
PM2.5
4.5
μg/m³
PM10
7.5
μg/m³
NO₂
2.1
μg/m³
O₃
57.2
μg/m³
SO₂
0.3
μg/m³
CO
124.3
μg/m³
Partly Cloudy
Monday, August 17, 2026
High
20°C
Low
11°C
Rain Chance
53%
Hourly Forecast
11°C
11°C
12°C
12°C
12°C
13°C
13°C
14°C
16°C
17°C
18°C
19°C
20°C
20°C
20°C
20°C
20°C
18°C
18°C
17°C
17°C
16°C
16°C
16°C
Day Statistics
Maximum Wind
24 km/h
Humidity
73%
Precipitation
1 mm
UV Index
3
Visibility
9 km
Rain Chance
53%
Snow Chance
0%
Sun & Moon
Sunrise
06:01 AM
Sunset
08:40 PM
Moonrise
12:21 PM
Moonset
09:49 PM
Moon Phase
Waxing Crescent
Moon Illumination
27%
Air Quality
PM2.5
7.8
μg/m³
PM10
11.6
μg/m³
NO₂
2.1
μg/m³
O₃
66
μg/m³
SO₂
1
μg/m³
CO
92
μg/m³
Light drizzle
Tuesday, August 18, 2026
High
20°C
Low
14°C
Rain Chance
93%
Hourly Forecast
16°C
16°C
14°C
14°C
17°C
15°C
16°C
17°C
16°C
16°C
18°C
17°C
17°C
19°C
20°C
20°C
20°C
19°C
18°C
18°C
17°C
17°C
16°C
16°C
Day Statistics
Maximum Wind
25 km/h
Humidity
93%
Precipitation
12 mm
UV Index
4
Visibility
6 km
Rain Chance
93%
Snow Chance
0%
Sun & Moon
Sunrise
06:03 AM
Sunset
08:38 PM
Moonrise
01:47 PM
Moonset
10:05 PM
Moon Phase
First Quarter
Moon Illumination
37%
Air Quality
PM2.5
4.7
μg/m³
PM10
7.2
μg/m³
NO₂
2.1
μg/m³
O₃
58.1
μg/m³
SO₂
0.7
μg/m³
CO
137.7
μg/m³
Patchy rain nearby
Wednesday, August 19, 2026
High
18°C
Low
11°C
Rain Chance
76%
Hourly Forecast
15°C
15°C
15°C
15°C
15°C
14°C
14°C
13°C
14°C
14°C
15°C
16°C
16°C
17°C
18°C
18°C
18°C
18°C
18°C
17°C
15°C
14°C
12°C
11°C
Day Statistics
Maximum Wind
20 km/h
Humidity
85%
Precipitation
3 mm
UV Index
4
Visibility
7 km
Rain Chance
76%
Snow Chance
0%
Sun & Moon
Sunrise
06:04 AM
Sunset
08:36 PM
Moonrise
03:10 PM
Moonset
10:26 PM
Moon Phase
First Quarter
Moon Illumination
48%
Patchy rain nearby
Thursday, August 20, 2026
High
17°C
Low
10°C
Rain Chance
22%
Hourly Forecast
11°C
10°C
10°C
10°C
10°C
10°C
10°C
10°C
11°C
13°C
15°C
16°C
16°C
16°C
17°C
17°C
17°C
17°C
17°C
16°C
14°C
12°C
10°C
10°C
Day Statistics
Maximum Wind
13 km/h
Humidity
78%
Precipitation
0 mm
UV Index
5
Visibility
10 km
Rain Chance
22%
Snow Chance
0%
Sun & Moon
Sunrise
06:06 AM
Sunset
08:34 PM
Moonrise
04:27 PM
Moonset
10:57 PM
Moon Phase
First Quarter
Moon Illumination
58%
Solar Radiation Data
Shortwave Radiation
92.46
Diffuse Radiation
57.9
DNI
0
GTI
0
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