Caernarfon weather live forecast

Today's maximum temperature in Caernarfon is expected to be 14°C. Select a day from the live weather forecast for Caernarfon, Wales, UK for more weather parameters.

Tuesday
28th Apr
14

7

10

2
Wednesday
29th Apr
18

6

14

5
Thursday
30th Apr
21

9

10

5
Friday
1st May
14

10

3

4
Saturday
2nd May
13

9

5

4

5-day weather forecast updated at 04:03 on Tuesday 28th April 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 Tuesday 28th April 2026

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 14°C, maximum UV of 2 (Low) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 25 kph from the north-east.

14
°C maximum temperature
7
°C minimum temperature
scattered clouds
10
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
14
°C wind chill
25
kph wind from NE

Caernarfon weather for Wednesday 29th April 2026

Expect clear skies in Caernarfon, Wales with a maximum temperature of 18°C, maximum UV of 5 (Moderate) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 33 kph from the east.

18
°C maximum temperature
6
°C minimum temperature
clear skies
14
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
18
°C wind chill
33
kph wind from E

Caernarfon weather for Thursday 30th April 2026

Expect sunshine and showers in Caernarfon, Wales with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 12% chance of some rain and a moderate breeze of 28 kph from the south-east.

21
°C maximum temperature
9
°C minimum temperature
sunshine and showers
10
hours of sunshine
5
UV index (Moderate)
12
% chance of some rain
<2
mm of rainfall expected
21
°C wind chill
28
kph wind from SE

Caernarfon weather for Friday 1st May 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 14°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 23% chance of some rain and a moderate breeze of 24 kph from the south-west.

14
°C maximum temperature
10
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
4
UV index (Moderate)
23
% chance of some rain
<2
mm of rainfall expected
14
°C wind chill
24
kph wind from SW

Caernarfon weather for Saturday 2nd May 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 33% chance of some rain and a gentle breeze of 19 kph from the south-west.