Soundlab A-3 summer biasing ?

Hi, here in Italy the summer is coming. Humidity is increasing every day and temp. as well.
Fine, isn't ?
In your experience and I am talking to persons as Alanporter, Duke, etc etc, how I should behave ?
It seems that with the higher humidity the bias need to be increased; is this right ?
Wouldn't be more risky to follow and increase it due to higher humidity possible discharge ?
In other words shall i leave the bias as dry time ?
Thanks