Night humidity at 80%!:o

So for about a year now my highest humidity reading has been 80-85% and I've never seen it actually say it...so I figured my hygrometer is bust so a year later I buy a new 1....pow there it was again on highest recorded.

The next morning I'm up early waiting for my lights to turn on and boom I'm checking it out 82% and my plants looked like they've just come out the shower soaked!!

So I'm gonna suck all night which I don't normally do until about 3 weeks from chop when smell increases my question is how low can my night temps get? With everything off I hit 15c at night,and when my sucker is on I hit 6-10c...would this be okie?I was thinking about leaving it as I have had many crops with no rot and obviously night humidity hitting 80-90% but I've been thinking I've had ph/water problems for 2 years with my leafs rusting/curling I'm pretty sure the humidity has now caused this,so night temps at 6-10c or humidity at 80-90% ?

I'm hoping they don't get a shock tonight too...from 90% down to 30-40%

6-10C for any prolonged period is too fucking cold.

Plant processes will pretty much stop at those temps.

Is a Dehumidifier out of the question?

A fan heater?

Change your intake source?


J

Im surprised you dont have mold by now. Get a dehumidifier already

A dehumidifier can both decrease humidity and increase temp at the same time.

Run all fans 24hrs

I have had similar. problems. the only way I solved them was to overhaul my grow. I switched out doors, lowered my ceiling a foot, improved my ventilation greatly. how many plants do you have in this space and how big is the space? with those temps and that much humidity something doesn't add up.

jondamon said:

6-10C for any prolonged period is too fucking cold.

Plant processes will pretty much stop at those temps.



Is a Dehumidifier out of the question?



A fan heater?

Change your intake source?


J

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I'm in a cupboard in my bedroom intake stops when my lights go out or it would be about 2 c lol its 7 just with my filter left on,I don't know how loud a dehumidifier would be..

NorthernHize said:

I have had similar. problems. the only way I solved them was to overhaul my grow. I switched out doors, lowered my ceiling a foot, improved my ventilation greatly. how many plants do you have in this space and how big is the space? with those temps and that much humidity something doesn't add up.

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I have 2 plants both in 20 litre dwc buckets,room size 80×100×150 cm,I wanna know wats causing it too,my plants looked fresh our the shower I'm gonna try leave my filter on for a extra 2 hours after the lights go out,my only thoughts is its the trapped heat in the room with no circulation

Is your intake air from outdoors? With low temps outdoors if you can you should intake from indoors and exhaust outdoors, don't go crazy fast as it will only cost you on your heating once you exceed minimum speed required to maintain temp/rh.

You can also get a cycle timer, setup fans to run for 15 seconds every 5 minutes and put a space heater with set at 65f (18-19c) in there. Will flush air often enough without clearing the whole room and dropping temp all the way.

I'd have mold for sure at 80% in flower. The fatter the buds, the more likely to be hit by it.

So I ran my filter on all night,and I still hit 75% but my temps didn't go too low 12.7 c...my question is now can I switch my light period by 12 hours? I'm 9 days into flower I need my lights on through the night.

This is the damage to my plant it has to be through humidity everything else is on point

Cobnobuler said:

I'd have mold for sure at 80% in flower. The fatter the buds, the more likely to be hit by it.

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I normally do small bushy plants and pull around 7-8 oz well for the past year that is

I would just give them 24 hours of dark instead of 12 hours of dark once and it would be done. Don't give extra light, give extra dark for the switch.

temps didn't go too low 12.7 c 54.86 Fahrenheit: seems cold

Terry385 said:

temps didn't go too low 12.7 c 54.86 Fahrenheit: seems cold

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Last time I ran filter overnight I hit around 6c so it's okie to that lol

my light off temp. hit a low of 59 f my leaves look bad rite after, Pic was taken 3 weeks in flower

Why are temps so low in your bedroom?

Also you need more powerful exhaust to rid the cabinet of humidity. Leaves breathing out makes moisture.

What is the humidity in your bedroom?

Terry385 said:

my light off temp. hit a low of 59 f my leaves look bad rite after, Pic was taken 3 weeks in flower
View attachment 3358420

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Sativa? Either way must be a very sensitive strain for 59f to be too cold. Nights in Late September through early November get pretty cold, colder than 59f in many/most areas, at least on occasion.

Flaming Pie said:

Why are temps so low in your bedroom?

Also you need more powerful exhaust to rid the cabinet of humidity. Leaves breathing out makes moisture.

What is the humidity in your bedroom?

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I'm gonna check my bedroom humidity tomorrow was just thinking that,my exhaust is a 6" rhino fan lol I probably couldn't get any bigger in such a small place or it would hoover up my plants lol

brodietheconeking said:

I'm gonna check my bedroom humidity tomorrow was just thinking that,my exhaust is a 6" rhino fan lol I probably couldn't get any bigger in such a small place or it would hoover up my plants lol

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Are you just getting back flow in your duct when the fan is off?

I don't know why my plants where so wet that time right as my lights turned on could they be sweating causing the humidity to rise or could the moisture in the air be falling on the leaves....They where drenched