Humidity at night

During lights on, the humidity is a good 55% both in the tent and in the room, but when the lights go out and I close the tent for the night it reads upwards of 80% in the tent. This number goes down as the pots dry out between watering but still remains on the high side even when it's close to watering time again. Exhaust fan runs 24/7 and I run a dehumidifier in the basement just feet away from the tent and keep it around 55%. Because I work during the day this will shut off when full and the RH in the room will go up to around 70 (but tent remains around 55 because of the light on). Once I get home in the evening I empty the tank and turn it back on.

Now because I open the tent during the day and have an oscillating fan blowing in during lights on, and a hurricane fan inside during lights out, is it OK to not worry about the humidity during lights out? Only a week and a half into flowering, so as we get closer to winter and the buds are forming I'll be using the wood stove which will help with the humidity issue.

Thanks everyone!

I would suggest set up night in day time during switch to flower.
More powerful dehumidifiers.

That kind of mimics the natural cycle of humidity outside. Around me in the midwest it would be a lot worse with 80% being at least 12 hours a day and higher the rest of the time.

I was getting condensation on the inside of the tent with 90% when it cooled to room temp of ~75F so I just run the 4" ex fan all the time.

When I had three 5 gal pots in my 3x3, I would leave the top portion of my tent door unzipped at night to combat high humidity (75+%) coming from my pots. My tents are in a separate room that remains dark with the door closed. Exhaust fan and three interior circulation fans inside remained on 24-7 at this time.

Part of that is the 'relative' in Relative Humidity...humidity is relative to the temperature (and the amount of moisture it can hold).

Do you have or is it possible to use an intake fan as well as your exhaust fan? That could help normalize things by more efficiently bringing in your drier air from the 'lungroom'.

Thanks everyone, I appreciate the feedback!