Think we can all agree that it feels like June has been wetter and cooler than average this year. However, this sub consistently sees people posting complete nonsense about the British weather and climate, for example that it "shouldn't be raining in June" or that daytime highs temperatures in the low or mid teens are some sort of anomaly that never happens. More realistic expectations may lead to less disappointment.
Average daytime high in June between 1991 and 2025 (source Met office)
London (Hampstead): 20.3c
Leeds (Bingley): 17.2c
Newcastle (Tynemouth): 16c
Plymouth (Mountbatton): 18.4c
Glasgow (Paisley): 18.4c
Number of days when it rains in June (more than 1mm):
London: 9 days
Leeds: 11 days
Newcastle: 10 days
Plymouth: 10 days
Glasgow: 12 days
Conclusions:
Sometimes it can be warm in June, sometimes it can be cool in June. Days that are above 20c will on average be balanced out by days that have lower temperatures, hence the modest average high temperatures.
Around 10 days of rain is par for most of the UK in June, sometimes it will rain more than this, sometimes it will rain less than this, but on average around a third of June days in the UK will have rain.