So you have proper air conditioning and were fine in the summer, but now that it’s cooled down outside you’re getting humidity spikes in your indoor grow room?…We’ve gotten to the bottom of this.
During the warmer months your air conditioner is turning on more often to cool the air, but this is only half of it’s function. If it only cooled the air it would probably be called an air cooler, part of the conditioning that it does to the air is dehumidification. While it cools the air it also removes excess moisture, helping keep your humidity down. Plants transpire and release a lot of humidity when the lights go out, but during warmer months the ambient outside air is warm enough to still get your A/C to cycle on and handle the humidity.
Now that it has cooled off outside though, it is easier for your A/C to keep the temperature down in your room, and is therefore cycling on less, especially with the lights off when humidity is at its highest. This will domino into higher humidity in your room. To solve this think of maybe adding a light during cooler months to add some heat, getting your A/C cycling on, and getting you an additional light worth of yield! Also, there is always dehumidifiers which will bring the humidity down, but also create heat and use a good amount of electricity in addition to an A/C. The double dehumidification from the A/C and dehumidifier combined can sometimes be too much…not my favorite option but sometimes the only one.
Keep it green and keep it growing………