Caernarfon weather live forecast

Today's maximum temperature in Caernarfon is expected to be 45°F. Select a day from the live weather forecast for Caernarfon, Wales, UK for more weather parameters.

Saturday
14th Feb
45

36

3

1
Sunday
15th Feb
48

39

3

1
Monday
16th Feb
48

43

1

1
Tuesday
17th Feb
46

37

2

1
Wednesday
18th Feb
46

39

1

1

5-day weather forecast updated at 04:03 on Friday 13th February 2026 GMT

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The 5-day weather forecast for Wales (Caernarfon) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Caernarfon weather forecast by day

Below are the detailed weather forecasts for Caernarfon for the next 5 days.

Caernarfon weather for Saturday 14th February 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 45°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 92% chance of some rain and a strong breeze of 25 mph from the south.

45
°F maximum temperature
36
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
92
% chance of some rain
<5
mm of rainfall expected
34
°F wind chill
25
mph wind from S

Caernarfon weather for Sunday 15th February 2026

Expect mostly cloudy with rain in Caernarfon, Wales with a maximum temperature of 48°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 75% chance of some rain and a strong breeze of 27 mph from the south-west.

48
°F maximum temperature
39
°F minimum temperature
mostly cloudy with rain
3
hours of sunshine
1
UV index (Low)
75
% chance of some rain
<20
mm of rainfall expected
41
°F wind chill
27
mph wind from SW

Caernarfon weather for Monday 16th February 2026

Expect mostly cloudy with rain in Caernarfon, Wales with a maximum temperature of 48°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 10-20 mm of rainfall expected with 81% chance of some rain and a fresh breeze of 19 mph from the west.

48
°F maximum temperature
43
°F minimum temperature
mostly cloudy with rain
1
hour of sunshine
1
UV index (Low)
81
% chance of some rain
<20
mm of rainfall expected
41
°F wind chill
19
mph wind from W

Caernarfon weather for Tuesday 17th February 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 46°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 14 mph from the south-east.

46
°F maximum temperature
37
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
51
% chance of some rain
<2
mm of rainfall expected
41
°F wind chill
14
mph wind from SE

Caernarfon weather for Wednesday 18th February 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 46°F, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 73% chance of some rain and a moderate breeze of 16 mph from the south.