Gwynedd, United Kingdom
Gwynedd, United Kingdom
Sunny
Feels like 17°C
Wind
7 km/h ENE
Humidity
68%
Pressure
1027 mb
UV Index
0
Visibility
10 km
Sunday, June 21, 2026
High
18°C
Low
10°C
Rain Chance
9%
13°C
13°C
Maximum Wind
14 km/h
Humidity
77%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
9%
Snow Chance
0%
Sunrise
04:48 AM
Sunset
09:47 PM
Moonrise
12:47 PM
Moonset
12:49 AM
Moon Phase
First Quarter
Moon Illumination
48%
PM2.5
2.9
μg/m³
PM10
4.5
μg/m³
NO₂
2.5
μg/m³
O₃
65.2
μg/m³
SO₂
0.2
μg/m³
CO
100.5
μg/m³
Monday, June 22, 2026
High
23°C
Low
13°C
Rain Chance
57%
13°C
14°C
14°C
14°C
14°C
14°C
15°C
17°C
19°C
20°C
21°C
22°C
22°C
22°C
22°C
22°C
23°C
23°C
22°C
21°C
19°C
18°C
18°C
18°C
Maximum Wind
7 km/h
Humidity
82%
Precipitation
1 mm
UV Index
7
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sunrise
04:49 AM
Sunset
09:47 PM
Moonrise
02:10 PM
Moonset
12:59 AM
Moon Phase
First Quarter
Moon Illumination
59%
PM2.5
4.9
μg/m³
PM10
7.5
μg/m³
NO₂
4.6
μg/m³
O₃
62.9
μg/m³
SO₂
0.3
μg/m³
CO
113.4
μg/m³
Tuesday, June 23, 2026
High
23°C
Low
16°C
Rain Chance
79%
17°C
17°C
16°C
16°C
16°C
16°C
17°C
18°C
20°C
21°C
21°C
22°C
22°C
23°C
23°C
23°C
22°C
21°C
20°C
19°C
19°C
18°C
17°C
16°C
Maximum Wind
10 km/h
Humidity
89%
Precipitation
5 mm
UV Index
7
Visibility
9 km
Rain Chance
79%
Snow Chance
0%
Sunrise
04:49 AM
Sunset
09:48 PM
Moonrise
03:33 PM
Moonset
01:10 AM
Moon Phase
Waxing Gibbous
Moon Illumination
69%
PM2.5
8.6
μg/m³
PM10
14.3
μg/m³
NO₂
4.1
μg/m³
O₃
75.3
μg/m³
SO₂
0.3
μg/m³
CO
128.2
μg/m³
Wednesday, June 24, 2026
High
22°C
Low
15°C
Rain Chance
14%
16°C
16°C
16°C
15°C
15°C
15°C
15°C
16°C
18°C
20°C
21°C
21°C
21°C
22°C
22°C
22°C
22°C
21°C
21°C
20°C
19°C
19°C
19°C
19°C
Maximum Wind
12 km/h
Humidity
85%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
14%
Snow Chance
0%
Sunrise
04:49 AM
Sunset
09:48 PM
Moonrise
04:55 PM
Moonset
01:21 AM
Moon Phase
Waxing Gibbous
Moon Illumination
79%
PM2.5
7.8
μg/m³
PM10
11.3
μg/m³
NO₂
3.3
μg/m³
O₃
65.4
μg/m³
SO₂
0.7
μg/m³
CO
112.6
μg/m³
Thursday, June 25, 2026
High
29°C
Low
19°C
Rain Chance
7%
19°C
20°C
20°C
20°C
20°C
19°C
20°C
21°C
22°C
24°C
25°C
26°C
27°C
27°C
28°C
29°C
29°C
28°C
28°C
28°C
27°C
25°C
25°C
25°C
Maximum Wind
27 km/h
Humidity
74%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
7%
Snow Chance
0%
Sunrise
04:50 AM
Sunset
09:48 PM
Moonrise
06:16 PM
Moonset
01:35 AM
Moon Phase
Waxing Gibbous
Moon Illumination
87%
PM2.5
4.7
μg/m³
PM10
7.9
μg/m³
NO₂
5.3
μg/m³
O₃
50.9
μg/m³
SO₂
1
μg/m³
CO
122.1
μg/m³
Friday, June 26, 2026
High
20°C
Low
16°C
Rain Chance
25%
22°C
20°C
19°C
17°C
17°C
16°C
16°C
17°C
17°C
18°C
18°C
18°C
19°C
20°C
20°C
20°C
19°C
19°C
19°C
19°C
18°C
17°C
17°C
16°C
Maximum Wind
26 km/h
Humidity
84%
Precipitation
0 mm
UV Index
7
Visibility
10 km
Rain Chance
25%
Snow Chance
0%
Sunrise
04:50 AM
Sunset
09:48 PM
Moonrise
07:34 PM
Moonset
01:54 AM
Moon Phase
Waxing Gibbous
Moon Illumination
93%
Saturday, June 27, 2026
High
18°C
Low
13°C
Rain Chance
55%
16°C
16°C
16°C
16°C
15°C
15°C
15°C
15°C
15°C
15°C
15°C
16°C
16°C
17°C
17°C
18°C
18°C
18°C
17°C
17°C
15°C
14°C
13°C
13°C
Maximum Wind
22 km/h
Humidity
88%
Precipitation
0 mm
UV Index
4
Visibility
10 km
Rain Chance
55%
Snow Chance
0%
Sunrise
04:51 AM
Sunset
09:47 PM
Moonrise
08:45 PM
Moonset
02:21 AM
Moon Phase
Full Moon
Moon Illumination
97%
Shortwave Radiation
139.86
Diffuse Radiation
59.79
DNI
1.9
GTI
116.4
Information on update: Area expanded across east Wales and much of the Midlands. Some updates to the 'further details' too. Following very warm weather on Sunday, very high temperatures, accompanied by high humidity, are expected on Monday and especially Tuesday and will likely bring widespread impacts to people and infrastructure. In addition to high daytime maxima, temperatures overnight will remain very warm, especially in larger urban areas. Temperatures are likely to reach the low to mid-30s Celsius in places on Monday and into the mid-30s Celsius more widely on Tuesday. Some places, particularly in urban areas, may see temperatures remain above 20 Celsius overnight. The very high temperatures are likely to continue across parts of central and southern Britain further on into next week, albeit with some uncertainty in the extent and magnitude of this heat. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings
Keep yourself safe by following these simple steps to reduce the likelihood of the heat making you feel unwell; drink plenty of fluids, keep out of the sun and avoid any exercise between 11am-3pm when the sun is strongest and close curtains in rooms that face the sun. If you are going out take water with you, stay in the shade, wear sunscreen and a wide brimmed hat. 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. If using public transport, there are many simple things you can do to keep yourself safe; carry water with you, take a small hand-held battery powered fan, if you feel unwell get off at next stop for some fresh air, dress in light fabrics in light colours to help stay cooler, keep an eye on fellow passengers for signs they may be struggling. Help to protect vulnerable people that you know including older people, those with underlying conditions and those who live alone; they may need support to keep cool and stay hydrated. If you are worried about your health, or that of somebody you know, ring NHS 111. Keep yourself safe whilst enjoying the water in this weather by following these simple steps: enter the water gradually, avoiding jumping or diving straight in, to reduce your risk of cold-water shock, go to a lifeguarded beach or a supervised swimming area, and, if you, or anyone else, get into difficulty in the water, float on your back. People cope better with power cuts when they have prepared for them in advance. It’s easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items. Stay up to date with the weather forecast for your area and follow any advice from emergency services and local authorities
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