Live Weather & Forecast
Weather in Caernarfon
Wales, United Kingdom · Real-time conditions & 3-day outlook
8°C
Feels like 7°C
47°F / Feels 45°F
Partly Cloudy
Caernarfon, Wales
🌙 Nighttime
Updated: 2026-04-13 20:15
Humidity
76%
Wind
8.3 km/h S
Wind Gust
16.6 km/h
Pressure
1012 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
3.1°C
Wind Degree
182°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
149.9 μg/m³
NO₂
1.9 μg/m³
O₃
87 μg/m³
SO₂
1.1 μg/m³
PM 2.5
3.3 μg/m³
PM 10
5.7 μg/m³
Today's Hourly Forecast
24-hour breakdown for Caernarfon, Wales
12 AM
3°
Patchy rain nearby
1 AM
3°
Patchy rain nearby
2 AM
3°
Patchy rain nearby
3 AM
3°
Patchy rain nearby
4 AM
3°
Clear
5 AM
2°
Clear
6 AM
2°
Patchy rain nearby
7 AM
3°
Patchy rain nearby
8 AM
5°
Sunny
9 AM
7°
Partly Cloudy
10 AM
8°
Sunny
11 AM
9°
Patchy rain nearby
12 PM
10°
Patchy rain nearby
1 PM
10°
Patchy rain nearby
2 PM
10°
Patchy rain nearby
3 PM
10°
Patchy rain nearby
4 PM
10°
Patchy rain nearby
5 PM
10°
Sunny
6 PM
9°
Sunny
7 PM
8°
Sunny
8 PM
8°
Partly Cloudy
9 PM
5°
Overcast
10 PM
4°
Cloudy
11 PM
4°
Clear
3-Day Forecast
Daily overview for Caernarfon, Wales
Today
Patchy rain nearby
10°
/
2°
🌧️ 89% chance of rain
💧 Avg. humidity: 77%
💨 Max wind: 20.2 km/h
🌧️ Total precip: 0.36 mm
☀️ UV Index: 0.8
🌅 Sunrise: 06:23 AM
🌇 Sunset: 08:13 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
11°
/
3°
🌧️ 87% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 1.43 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:20 AM
🌇 Sunset: 08:15 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Moderate rain
12°
/
9°
🌧️ 86% chance of rain
💧 Avg. humidity: 92%
💨 Max wind: 34.9 km/h
🌧️ Total precip: 9.25 mm
☀️ UV Index: 0.4
🌅 Sunrise: 06:18 AM
🌇 Sunset: 08:17 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Caernarfon
Plan your trip to Caernarfon, United Kingdom around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Caernarfon?
Current conditions in Caernarfon: Partly Cloudy, temperature 8°C, humidity 76%.
What is the best time to visit Caernarfon?
The best time to visit Caernarfon is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Caernarfon?
Caernarfon is located at approximately 53.1° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Caernarfon?
The wettest period in Caernarfon is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Caernarfon?
For visits to Caernarfon during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Caernarfon in?
Caernarfon is located in United Kingdom, in the state of Wales.
What are the public holidays in Caernarfon in 2026?
View the 2026 public holidays for Caernarfon on our Holidays page.
What are the GPS coordinates used for the weather forecast in Caernarfon?
The weather forecast for Caernarfon uses coordinates 53.1394, -4.277.