Weather in Cardiff in August
Cardiff, United Kingdom averages a high of 19.5°C (67.1°F) and low of 13.4°C (56.1°F) in August, with 12 rain days and 10.1 hours of daily sunshine. Travel score: 71.6/100 (Good). The best time to visit Cardiff is July.
High
20°C67°F
Low
13°C56°F
🌧️
12
rain days
☀️
10.1
hrs/day sunshine
💧
79%
humidity
72— Good
August in Cardiff is mild and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in Cardiff?
How much does it rain in Cardiff in August?
Cardiff receives an average of 85.3mm of rainfall across 12 rainy days in August. The annual total is 1041.5mm.
What should I pack for Cardiff in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 20°C
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
Traveling to United Kingdom in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31