Mild
Average highs are around 20°C, so days are mild rather than hot.
July verdict
Cardiff, Wales, United Kingdom in July
Weather score45Mixed
Mixed for holiday weather
Average highs are around 20°C, so days are mild rather than hot. Sunshine averages 6.3h per day, enough for a balanced month. Rainfall averages 67mm, which is relatively low for holiday planning.
July weather
Monthly averages
Temp
20°C
Rain
67mm
Sun
6.3h
Sea
17°C
Weather score
45
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 67mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 17°C, so the water can feel cool.
Map
Weather map
Compare Cardiff, Wales, United Kingdom with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July20°C average high
July is one of Cardiff's warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July67mm average rain
July sits on the drier side of Cardiff's year, which helps with sightseeing and transfers.
Driest monthsFebruary to August
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July6.3 hours average sun
July is one of Cardiff's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
July17°C average sea
July is one of Cardiff's warmest sea months, when swimming comfort is usually strongest.
Warmest seaJuly to September
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
Weather score
July45 weather score
July is one of Cardiff's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
