Weather Forecast for Caernarfon
Gwynedd, United Kingdom
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Current Weather - Caernarfon: 11°C
Current Weather - Caernarfon: 11°C
Gwynedd, United Kingdom
Light drizzle
Feels like 8°C
Wind
36 km/h SSE
Humidity
62%
Pressure
972 mb
UV Index
0
Visibility
10 km
Moderate rain
Tuesday, January 27, 2026
High
9°C
Low
4°C
Rain Chance
100%
Hourly Forecast
7°C
7°C
7°C
7°C
7°C
7°C
6°C
6°C
6°C
5°C
Day Statistics
Maximum Wind
58 km/h
Humidity
83%
Precipitation
10 mm
UV Index
0
Visibility
8 km
Rain Chance
100%
Snow Chance
0%
Sun & Moon
Sunrise
08:09 AM
Sunset
04:51 PM
Moonrise
10:49 AM
Moonset
03:04 AM
Moon Phase
Waxing Gibbous
Moon Illumination
59%
Air Quality
PM2.5
3.2
μg/m³
PM10
5.2
μg/m³
NO₂
3.2
μg/m³
O₃
69.4
μg/m³
SO₂
1.1
μg/m³
CO
144.7
μg/m³
Sunny
Wednesday, January 28, 2026
High
8°C
Low
2°C
Rain Chance
0%
Hourly Forecast
5°C
4°C
3°C
3°C
3°C
2°C
2°C
2°C
2°C
2°C
4°C
7°C
8°C
8°C
8°C
8°C
6°C
3°C
3°C
2°C
2°C
2°C
2°C
2°C
Day Statistics
Maximum Wind
16 km/h
Humidity
81%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
08:07 AM
Sunset
04:53 PM
Moonrise
11:22 AM
Moonset
04:36 AM
Moon Phase
Waxing Gibbous
Moon Illumination
70%
Air Quality
PM2.5
4.2
μg/m³
PM10
10
μg/m³
NO₂
2.5
μg/m³
O₃
75.7
μg/m³
SO₂
1.1
μg/m³
CO
144.2
μg/m³
Partly Cloudy
Thursday, January 29, 2026
High
7°C
Low
1°C
Rain Chance
0%
Hourly Forecast
2°C
2°C
2°C
2°C
2°C
1°C
1°C
1°C
1°C
2°C
5°C
6°C
7°C
7°C
7°C
6°C
6°C
5°C
5°C
5°C
4°C
4°C
4°C
4°C
Day Statistics
Maximum Wind
27 km/h
Humidity
81%
Precipitation
0 mm
UV Index
0
Visibility
10 km
Rain Chance
0%
Snow Chance
0%
Sun & Moon
Sunrise
08:06 AM
Sunset
04:55 PM
Moonrise
12:11 PM
Moonset
05:58 AM
Moon Phase
Waxing Gibbous
Moon Illumination
80%
Air Quality
PM2.5
8.3
μg/m³
PM10
10.8
μg/m³
NO₂
7.7
μg/m³
O₃
48.7
μg/m³
SO₂
1.5
μg/m³
CO
179.3
μg/m³
Patchy rain nearby
Friday, January 30, 2026
High
7°C
Low
2°C
Rain Chance
86%
Hourly Forecast
4°C
4°C
4°C
4°C
4°C
4°C
3°C
3°C
2°C
3°C
6°C
6°C
6°C
7°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
Day Statistics
Maximum Wind
41 km/h
Humidity
86%
Precipitation
1 mm
UV Index
0
Visibility
9 km
Rain Chance
86%
Snow Chance
0%
Sun & Moon
Sunrise
08:04 AM
Sunset
04:57 PM
Moonrise
01:23 PM
Moonset
07:02 AM
Moon Phase
Waxing Gibbous
Moon Illumination
89%
Air Quality
PM2.5
4.8
μg/m³
PM10
4.9
μg/m³
NO₂
11.7
μg/m³
O₃
42
μg/m³
SO₂
3.3
μg/m³
CO
186.6
μg/m³
Patchy rain nearby
Saturday, January 31, 2026
High
8°C
Low
5°C
Rain Chance
89%
Hourly Forecast
6°C
6°C
6°C
5°C
6°C
6°C
5°C
6°C
6°C
5°C
7°C
8°C
6°C
8°C
8°C
8°C
7°C
6°C
5°C
5°C
6°C
7°C
6°C
6°C
Day Statistics
Maximum Wind
17 km/h
Humidity
89%
Precipitation
2 mm
UV Index
2
Visibility
10 km
Rain Chance
89%
Snow Chance
0%
Sun & Moon
Sunrise
08:03 AM
Sunset
04:59 PM
Moonrise
02:50 PM
Moonset
07:44 AM
Moon Phase
Waxing Gibbous
Moon Illumination
95%
Air Quality
PM2.5
4.1
μg/m³
PM10
4.2
μg/m³
NO₂
10.6
μg/m³
O₃
32.6
μg/m³
SO₂
4.3
μg/m³
CO
281.5
μg/m³
Patchy rain nearby
Sunday, February 01, 2026
High
8°C
Low
4°C
Rain Chance
85%
Hourly Forecast
5°C
5°C
6°C
6°C
6°C
6°C
6°C
6°C
6°C
7°C
7°C
8°C
8°C
8°C
8°C
8°C
7°C
6°C
5°C
5°C
5°C
4°C
4°C
4°C
Day Statistics
Maximum Wind
24 km/h
Humidity
87%
Precipitation
3 mm
UV Index
2
Visibility
8 km
Rain Chance
85%
Snow Chance
0%
Sun & Moon
Sunrise
08:01 AM
Sunset
05:01 PM
Moonrise
04:23 PM
Moonset
08:11 AM
Moon Phase
Full Moon
Moon Illumination
99%
Patchy rain nearby
Monday, February 02, 2026
High
6°C
Low
2°C
Rain Chance
77%
Hourly Forecast
4°C
4°C
4°C
4°C
3°C
3°C
2°C
3°C
3°C
3°C
4°C
5°C
6°C
6°C
5°C
5°C
5°C
5°C
5°C
5°C
6°C
6°C
6°C
5°C
Day Statistics
Maximum Wind
31 km/h
Humidity
89%
Precipitation
3 mm
UV Index
1
Visibility
9 km
Rain Chance
77%
Snow Chance
0%
Sun & Moon
Sunrise
07:59 AM
Sunset
05:03 PM
Moonrise
05:55 PM
Moonset
08:29 AM
Moon Phase
Waning Gibbous
Moon Illumination
100%
Solar Radiation Data
Shortwave Radiation
93.65
Diffuse Radiation
47.78
DNI
208.85
GTI
0
Weather Alerts
Patchy ice is likely to form on untreated surfaces by Wednesday morning and may lead to some disruption.
Clearing skies Tuesday night will allow temperatures to fall below freezing soon after midnight and on Wednesday morning. After the recent wet weather, icy patches are likely to develop on some untreated surfaces. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Keep yourself and your family safe when it is icy. Plan to leave the house at least five minutes earlier than normal. Not needing to rush, reduces your risk of accidents, slips, and falls. If you need to make a journey on foot, try to use pavements along main roads which are likely to be less slippery. Similarly, if cycling, try and stick to main roads which are more likely to have been treated. Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary. Be prepared for weather warnings to change: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.
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