Perfect Tempature and Humidity for Grow Room

K

KUShSOurSMOKEr

Well-Known Member
OK so i was just wondering what is the ideal temperature and humidity for plants to grow to their max potential indoor?

Temperature : ?

Humidity : ?


also if it needs to drop or rise please note...

i know towards the end u want the humidity to drop..
 
snicol

snicol

Active Member
Lots of variables involved here, I mean every grow is different and optimal needs are different. For my WW and AK47 grow my veg room is 80 degrees with 55% humidity, and under my clone dome I keep the humidity at 95%. For my flower room I run 77 degrees lights on, 64 for the dark period, with a humidity of 57%, and the only reason I go that high on humidity is that I run CO2 and those numbers all seem to be working perfect. But as I said each grow has its own needs, so lots of factors, hope that helps a tiny bit.
 
bostoner

bostoner

Active Member
Jorge cervantes says perfect is 75 F. humidity 80 - 95 clones. 60 - 70 veg. 40 - 60 flower. With that said plants are forgiving to an extent, give or take 10 degrees. Under 65 or over 85 will slow growth but not stop all growth. In the dark the lowest you should go is around 65. If you cant get it perfect you plants will be fine. They adjust to there surroundings and grow great. As long as the temp is a constant. They don't like to fluctuate from day to day. This will cause them stress.
 
K

KUShSOurSMOKEr

Well-Known Member
thanks so much for this guys

my temps are running at DAY = 75 F! :) . 65 humidity and , NIGHT 65 F -60 F ..70-80 humidity?

just want to make sure this high night tempatures im getting slow my bud growth down? but it is getting frosty as fuck day by day and im seeing results daily.
 
K

KUShSOurSMOKEr

Well-Known Member
thanks alot man ya im jus thinkin how i could drop the humidity down when the lights are off right now its like 70-80 i want it to be like 60 humidity i want fast bud growth
 
bostoner

bostoner

Active Member
That high of humidity at night isn't going to slow your plants down but it will become more susceptible to mold with higher RH. Just make sure the air around them is moving well and there shouldn't be a problem.
 
K

KUShSOurSMOKEr

Well-Known Member
Fuck I can't get my humidity down with my nights temps with 90 maxMy temps are fine with 63 off and 75 on humidity about 65 with lights on..Any ideas I tried turning the fan down a lil no help..
 
crispypb840

crispypb840

Active Member
my temps go a little high sometimes (85f) and I don't see a problem. I just seem to have to water more. Think about when there in the wild the temps get 100+ in full sun so I wouldn't be too worried. Just make sure your exchanging the air fast enough or humidity will dry out. I think one bad thing about high temps in bloom is the trich's degrade a little quicker.
 
RockinDaGanja

RockinDaGanja

Well-Known Member
What should Your humidity be at night when your lights are off? I'm noticing a huge raise in humidity during my dark period. Its ok for now because my pants are still vegging. But it could pose a problem in flower. Should i turn my fans up at night. I have a new grow rooms And its responding A lot different to my equipment.
 
RM3

RM3

Well-Known Member
No such thing as one perfect number but if you combine em and calculate the heat index you can get the zone by tweakin what ever is easiest deal with. You are lookin for a heat index that is 4 points above ambient as example if your temp was 72 and your RH was 33% your heat index would be 76.5 in that zone plants thrive :)

you can calculate it here ,
http://www.easysurf.cc/cnver16.htm

if mold is a concern you can calculate that here ,
http://www.dpcalc.org/
 
RockinDaGanja

RockinDaGanja

Well-Known Member
A
RM3 said:
No such thing as one perfect number can getbut if you combine em and calculate the heat index you can get the zone by tweakin what ever is easiest deal with. You are lookin for a heat index that is 4 points above ambient as example if your temp was 72 and your RH was 33% your heat index would be 76.5 in that zone plants thrive :)

you can calculate it here ,
http://www.easysurf.cc/cnver16.htm

if mold is a concern you can calculate that here ,
http://www.dpcalc.org/
Click to expand...
Awsome... yea mold is my main concern because the region i live in. Usually this time of year though It doesn't jump up and down so much. Just need to tweek a few things in new space. Thaks for that link rm!
 
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