Hike the South West Coast Path
The South West Coast Path means breathtaking nature, kind people and delicious food everywhere you go. It is an unforgettable experience and you need to add it to your bucket list.
June in Cardiff sees daytime temperatures around 18°C (64°F) and lows of 12°C (54°F) at night. With around 82 mm (3.2 in) of rainfall expected, it's worth packing a rain jacket.
For Cardiff itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Pick a month to see the average temperature, rainfall and sunshine in Cardiff - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Cardiff typically stay consistent throughout June, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Cardiff spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Cardiff from 1976 through 2026.
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in June →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pleasant temperatures in June mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 13°C (55°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Cardiff climate overview or explore weather in the United Kingdom.
Where to go in June - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Hike the South West Coast Path
The South West Coast Path means breathtaking nature, kind people and delicious food everywhere you go. It is an unforgettable experience and you need to add it to your bucket list.
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