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Cardiff

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Cardiff Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Cardiff year round climate

  • Spring (March–May): Average 8–13°C, mild and rainy with occasional sunshine. Common activities: Walking along Cardiff Bay, visiting Cardiff Castle. Suggested clothing: Light jacket, comfortable shoes, umbrella.
  • Summer (June–August): Average 15–17°C, warm and humid with occasional rain. Common activities: Boating on Cardiff Bay, exploring Cardiff city centre shops and restaurants, visiting St Fagans National Museum of History. Suggested clothing: Light and breathable clothing, rain gear.
  • Autumn (September–November): Average 9–13°C, cool and humid with increased rainfall. Common activities: Visiting museums and art galleries, enjoying Cardiff's café culture. Suggested clothing: Warm jacket, waterproof jacket, comfortable shoes.
  • Winter (December–February): Average 5–8°C, cold and humid with high rainfall. Common activities: Visiting indoor museums, enjoying Cardiff's Christmas celebrations. Suggested clothing: Warm coat, scarf, hat, gloves, waterproof jacket and waterproof shoes.

Cardiff climatological average

Annual average temperature: approx. 11.6°C / Annual rainfall: approx. 1182 mm / Summer humidity: 65%–75% / Rainiest month: December

Cardiff monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
5.9°C
94.7
February
7.6°C
102.5
March
8°C
121.2
April
9.5°C
80.6
May
13.2°C
72.5
June
15.6°C
37.4
July
16.9°C
89.2
August
17.5°C
64.3
September
15.5°C
89.5
October
13.1°C
124.8
November
9.4°C
149.2
December
7.2°C
156.4

Cardiff weather for the next seven days

12/18
Thursday
Heavy rain
10.1°C/7.3°C
12/19
Friday
Patchy rain nearby
9.1°C/6.1°C
12/20
Saturday
Patchy rain nearby
9.2°C/6.3°C
12/21
Sunday
Moderate rain
8.6°C/5.6°C
12/22
Monday
Moderate rain
7.5°C/4.6°C
12/23
Tuesday
Patchy rain nearby
5.4°C/4.3°C
12/24
Wednesday
Patchy rain nearby
5.9°C/3.8°C

Cardiff Frequently Asked Questions and Useful Information for Travel

Why is Cardiff so famous?

Cardiff is renowned for its stylish waterfront area, Cardiff Bay, which was once the busiest coal port in the world. It's also famously known as a filming location for the BBC's Doctor Who series, set against the backdrop of the Welsh Assembly building.

Which part of the UK is Cardiff in?

Cardiff is located in the southeast of Wales, within the United Kingdom. It serves as the capital city and county town of the historic county of Glamorgan.

What language is spoken in Cardiff?

As the capital city of Wales, Cardiff officially uses both Welsh and English as its languages.

Is Cardiff a good place for affordable travel?

Cardiff has been recognized as one of the most affordable university cities in the UK, making it an attractive destination for budget-conscious travelers planning for 2025.

What are some must-see attractions in Cardiff?

Visitors to Cardiff in 2025 should explore the revitalized Cardiff Bay area with its numerous restaurants and bars. Don't miss the iconic Cardiff Castle, a medieval fortress that offers a glimpse into the city's rich history.