Caernarfon weather live forecast

Tomorrow's maximum temperature in Caernarfon is expected to be 13°C.

  • Friday
    18th Apr
    Cloudy with some rain (10-20 mm of rainfall expected)
  • Saturday
    19th Apr
    Mostly cloudy with rain (5-10 mm of rainfall expected)
  • Sunday
    20th Apr
    Broken clouds
  • Monday
    21st Apr
    Mostly cloudy with light rain (2-5 mm of rainfall expected)
  • Tuesday
    22nd Apr
    Broken clouds

5-day weather forecast updated at 04:03 on Friday 18th April 2025 GMT

More about Caernarfon

Caernarfon by month

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

Recommended for Wales

Pure Leisure: Purchase gift vouchers

  • Purchase holiday gift vouchers for family & friends
  • Valid for 12 months from date of purchase
  • Minimum voucher value of £20. T&Cs apply
Go to Pure Leisure deal >>

View all Pure Leisure offers

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 18th April 2025

Expect cloudy with some rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 86% chance of some rain and a moderate breeze of 27 kph from the south-east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 9°C minimum temperature9
    °C minimum temperature
  • Cloudy with some rain
    cloudy with some rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 86% chance of some rain86
    % chance of some rain
  • 10-20 mm of rainfall expected<20
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the South-East27
    kph wind from SE

Back to top

Caernarfon weather for Saturday 19th April 2025

Expect mostly cloudy with rain in Caernarfon, Wales with a maximum temperature of 13°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 70% chance of some rain and a moderate breeze of 23 kph from the east.

  • 13°C maximum temperature13
    °C maximum temperature
  • 10°C minimum temperature10
    °C minimum temperature
  • Mostly cloudy with rain
    mostly cloudy with rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 70% chance of some rain70
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • 13°C wind chill13
    °C wind chill
  • Moderate breeze of 23 kph from the East23
    kph wind from E

Back to top

Caernarfon weather for Sunday 20th April 2025

Expect broken clouds in Caernarfon, Wales with a maximum temperature of 15°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

  • 15°C maximum temperature15
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 15°C wind chill15
    °C wind chill
  • Light breeze of 12 kph from the South-East12
    kph wind from SE

Back to top

Caernarfon weather for Monday 21st April 2025

Expect mostly cloudy with light rain in Caernarfon, Wales with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 18 kph from the south-west.

  • 12°C maximum temperature12
    °C maximum temperature
  • 8°C minimum temperature8
    °C minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 54% chance of some rain54
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 12°C wind chill12
    °C wind chill
  • Gentle breeze of 18 kph from the South-West18
    kph wind from SW

Back to top

Caernarfon weather for Tuesday 22nd April 2025

Expect broken clouds in Caernarfon, Wales with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

  • 12°C maximum temperature12
    °C maximum temperature
  • 7°C minimum temperature7
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 3 hours of bright sunshine3
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 15 kph from the South15
    kph wind from S

Back to top

Forest Holidays: Latest deals & discounts on UK breaks

  • Search for forest cabins in England, Scotland & Wales
  • Check availability & book early for best prices
  • Save with latest online deals & discount codes
Go to Forest Holidays deal >>

View all Forest Holidays offers

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Wales

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^