Day and night temperature/RH difference

hey there, you're right to pay attention to the relationship between temperature and humidity, actually those two things are the only things that determine growth rate. The good news is that you have nothing to worry about. You can still improve your environmental conditions actually , though. to reach optimal you need optimal VPD, vapor pressure deficit, which regulates the opening of the stomatas as well as a bunch of other stuff. at this stage the optimal humidity for you is 70% , so you actually did well that night. hope this helps ! 🚀

Your grow will be great 🙏🏻😎👍

Sounds like you need to drop the humidity in the whole room if you can. A dehumidifier is likely the only real solution, but you might improve things a bit if you can increase circulation throughout the rest of your place in the meantime.

Thanks for great quick replies!! @souljasam - Yes, I do run them 24/7, I left an open window during night here, so maybe it increased my humidity levels, I'll pop one of those humydry packets to start lowering this, I can't afford a humidifier right now, maybe next month. @Tastecraft - Thanks for the input! I run my exhaust 24/7, so humidity of the room is almost as the same as inside the tent, very little variation. So I think I need to invest on controlling the humidity of most of my place, or start running the exhaust on timer and controlling only tent's humidity. What do you think? @The_420 - Thanks for the reply! I think my temps are spot on, so I think my focus now should be fixing RH. I have exhaust 24/7, so normally my place's RH is the same as inside tent. I don't know what happened yesterday to find this 76% RH, maybe an open window and some climate variation here. I'm using those humydry packets to try to control the RH here, at least until I buy a dehumidifier. I have no windows on my grow room, so it's pretty tricky to control humidity and air circulation.

Those fluctuations are perfectly normal but there the battle begins..I had the same problem on my first grow I’m growing in my basement so the Rh is always higher then in other rooms so i placed a dehumidifier in basement at Rh 40% all the time when in bloom so when the lights go off my exhaust sucks in dry air In a few weeks a second tent will be added to my setup for veg so I’m probably gonna buy a new smaller dehumidifier witch I can place in my bloom tent because the veg tent likes the high Rh of my basement I hope this was of some use to u ✌️Happy growing and stay safe 🌱

Hey buddy :-) the ideal value is 20-26 degrees celcius and 65-70% humidity in the vegan phase during the day. at night at 18-23 degrees celcius. If you have too much humidity in the bloom afterwards, there may be problems with mold. The cheap variant is then 1 or 2 extra fans with in the tent that the moist air does not stop. the more expensive but better is to make the exhaust air extremely large and to regulate it down with a step transformer. Keep it up you do it perfectly 👌👍😎

Bonjour L'idéal la nuit c'est entre 17°C et 20°C L'idéal pendant la lumière allumé entre 24 °C et 27°C Au delà de 28°C c'est trop chaud pour tes plantes et cela ralentit leurs croissance ou floraison. L'humidité serait mieu vers 60% Il ne faut pas qu'il y ai un trop gros écart entre la température du jour et de la nuit, sinon tu risque de les stresser. si tu as trop d'humidité tu peux prendre un déshumidificateur c'est très efficace. L'idéal est d' arrosé 2 h avant que les lumière ne s’éteigne car cela évite de brûler les feuilles. J'espère avoir bien répondu a vos questions et vous avoir apportez tout les conseils nécessaire. n'hésite ps a venir me parler si tu a besoin . Plein de courage et prends soins d'elle, elle te le revaudra 😊

Your lights on/off temps are totally fine. The lights on humidity is maybe a little high but not too bad. The lights off humidity is an issue. Do you run your exhaust fan 24/7? If not you should. If you do it sounds like you need to use a dehumidifier to drop your overall humidity levels.