Here usually during heat waves is dry with dew points below 10°C and decent minimun temperatures around or below 20°C if not cloudy or windy, but this year we come from a 200+ mm May that ended with submerged fields and a lot of locally produced moist from evaporation in the first half of june then in the last two weeks with the high pressure costantly over western Europe we had winds blowing from NE that took humidity from the Adriatic sea and the Padanian hell (in Pianura Padana is terrible the summer due to humidity and also night heat forced by urbanization and heat islands) so in the end since the beginning of the month only three days the dew point was below 15°C and in a lot of cases was around 20°C with the exceptional peak of 24°C two days ago.
Situations with high humidity and dew points over 20°C are instead very common when there is perturbed weather and rain because nowadays cool breaks have become very rare during the summer with the warming trend of recent decades, during 2014 summer when there was rain almost every day was terrible in that regard, i don't like heat in general but i prefer to have 40°C with 10% of humidity rather than 28°C with 80% and rain.
Anyway the next days should be better, yesterday evening the wind stopped and we lost a dozen of degrees in dew point (now is 11°C) and this morning the minimun temperature was below 20°C (yesterday was 25,4°C, one of the highest since i record weather data at my home), the next "problematic" day should be the 3rd of july when there is risk of rain with 850 hPa temperatures still around 20°C so pontentially a sauna day.
Situations with high humidity and dew points over 20°C are instead very common when there is perturbed weather and rain because nowadays cool breaks have become very rare during the summer with the warming trend of recent decades, during 2014 summer when there was rain almost every day was terrible in that regard, i don't like heat in general but i prefer to have 40°C with 10% of humidity rather than 28°C with 80% and rain.
Anyway the next days should be better, yesterday evening the wind stopped and we lost a dozen of degrees in dew point (now is 11°C) and this morning the minimun temperature was below 20°C (yesterday was 25,4°C, one of the highest since i record weather data at my home), the next "problematic" day should be the 3rd of july when there is risk of rain with 850 hPa temperatures still around 20°C so pontentially a sauna day.