Average temperatures, rainfall and packing tips for Cardiff, United Kingdom in August
🌡️ Avg high
20°C
🌙 Avg low
13°C
🌧️ Rainfall
~79 mm
📊 Warmth rank
#2 of 12
August in Cardiff at a glance
August in Cardiff is typically mild, with average daytime highs around 20°C and nights near 13°C. It is one of the warmer months of Cardiff's year.
Expect some rain: around 79 mm falls in Cardiff during August on average.
What to pack for Cardiff in August
Medium layers: long sleeves and a sweater
A light-to-medium jacket
A compact umbrella for occasional showers
Cardiff - year at a glance
HighLow · August highlighted
Is August a good time to visit Cardiff?
🧳 August is one of the most comfortable months to visit Cardiff - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.
In August, Cardiff averages a daytime high of about 20°C and a night-time low of around 13°C, based on recent historical data.
Does it rain in Cardiff in August?
Expect some rain: around 79 mm falls in Cardiff during August on average.
Is August a good time to visit Cardiff?
August is one of the most comfortable months to visit Cardiff - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.