I’m not so sure that would be effective. In general, the strategy for lowering basement humidity is to seal it up, insulate if practical (Closed cell foam), and use mechanical dehumidification.
If you are inclined to bring in outside air, you might consider doing so only when the surface temperature of the walls and floor is greater than the dew point of the outside air, which is rare in the non heating season. The air temperature of a typical basement is above the surface temperature of the lower walls and floor, and so the relative humidity, which is a function of temperature, will not be an effective proxy for the potential of condensation of the ventilation air.
If there is bulk water infiltration, any ventilation will probably be futile.