Caernarfon weather live forecast

Today's maximum temperature in Caernarfon is expected to be 27°C. Select a day from the live weather forecast for Caernarfon, Wales, UK for more weather parameters.

Friday
10th Jul
27

15

15

6
Saturday
11th Jul
28

19

15

6
Sunday
12th Jul
29

18

13

7
Monday
13th Jul
27

16

13

6
Tuesday
14th Jul
27

16

7

6

5-day weather forecast updated at 04:03 on Friday 10th July 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 Friday 10th July 2026

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-east.

27
°C maximum temperature
15
°C minimum temperature
scattered clouds
15
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
14
kph wind from NE

Caernarfon weather for Saturday 11th July 2026

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 6 (High) and 15 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the north-east.

28
°C maximum temperature
19
°C minimum temperature
scattered clouds
15
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
18
kph wind from NE

Caernarfon weather for Sunday 12th July 2026

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the east.

29
°C maximum temperature
18
°C minimum temperature
scattered clouds
13
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
22
kph wind from E

Caernarfon weather for Monday 13th July 2026

Expect scattered clouds in Caernarfon, Wales with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the east.

27
°C maximum temperature
16
°C minimum temperature
scattered clouds
13
hours of sunshine
6
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
24
kph wind from E

Caernarfon weather for Tuesday 14th July 2026

Expect broken clouds in Caernarfon, Wales with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the east.