Caernarfon weather live forecast

Today's maximum temperature in Caernarfon is expected to be 8°C. Select a day from the live weather forecast for Caernarfon, Wales, UK for more weather parameters.

Friday
6th Mar
8

4

4

2
Saturday
7th Mar
10

4

4

2
Sunday
8th Mar
14

8

2

1
Monday
9th Mar
13

9

4

1
Tuesday
10th Mar
11

9

0

1

5-day weather forecast updated at 04:03 on Friday 6th March 2026 GMT

More about Caernarfon

Caernarfon by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

Spabreaks.com promo code: 8% off bookings & vouchers

Exclusive

Save 8% on spa breaks, spa days & gift vouchers
Check out latest offers on over 550 spas across the UK
A guaranteed experience to suit your budget & occasion

Show discount code

******SB8

Redeem Spabreaks.com discount code >>

Expires at 23:59 on Thursday 31st Dec 2026 · View all Spabreaks.com offers

Spa break finder

Destination

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 6th March 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 8°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 8% chance of some rain and a moderate breeze of 27 kph from the north.

8
°C maximum temperature
4
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
2
UV index (Low)
8
% chance of some rain
<5
mm of rainfall expected
4
°C wind chill
27
kph wind from N

Caernarfon weather for Saturday 7th March 2026

Expect broken clouds in Caernarfon, Wales with a maximum temperature of 10°C, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-east.

10
°C maximum temperature
4
°C minimum temperature
broken clouds
4
hours of sunshine
2
UV index (Low)
0
mm of rainfall expected
0
no heat & humidity
9
kph wind from SE

Caernarfon weather for Sunday 8th March 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 14°C, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 16 kph from the south.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
41
% chance of some rain
<5
mm of rainfall expected
14
°C wind chill
16
kph wind from S

Caernarfon weather for Monday 9th March 2026

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 1 (Low) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a gentle breeze of 16 kph from the south.

13
°C maximum temperature
9
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
1
UV index (Low)
34
% chance of some rain
<2
mm of rainfall expected
13
°C wind chill
16
kph wind from S

Caernarfon weather for Tuesday 10th March 2026

Expect cloudy with some rain in Caernarfon, Wales with a maximum temperature of 11°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 51% chance of some rain and a fresh breeze of 32 kph from the south.