Need help.. my humidity is up to 75_80% at night

I need help with my humidity at night reaching up to 70 75 sometimes 80%humidity I have 2 dehumidifiers and they seem not to keep it down but they do collect water. my exhaust and intake fan is off at night only for 6 hours. at night I shut my exhaust fan at night save PG&E should I keep it on through the night even though it's 50 Fahrenheit outside air at night? One more week and I'll be flowering I don't know what to do to bring down my humidity? Should I keep my exhaust fan through the night even though it's cold 52 Fahrenheit in the night. Plus my inside fans are on all day and night. What should I do? I can really use your advice please thank you.

Keep your fans on 27 / 7 .
I don't turn mine off until harvest time .
Keep them fans going as to prevent any mold wanting to start .

dadio161 said:

Keep your fans on 27 / 7 .
I don't turn mine off until harvest time .

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I keep my inside fans on all day in grow room through the whole day 24 hours. Do you mean my exhaust fan and my intake fan?

Leave the exhaust fan on 24/7. Put an oil filled heater in there to keep the temps up and you probably won't need the dehumidifiers.

xtsho said:

Leave the exhaust fan on 24/7. Put an oil filled heater in there to keep the temps up and you probably won't need the dehumidifiers.

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Don't have room for a heater in my grow tent all full of plants. You think I should have the exhaust fan all night even though it gets 45- 50 degrees Fahrenheit at night? they won't freeze or cause any problems to my plants do you think?

King4994 said:

Don't have room for a heater in my grow tent all full of plants. You think I should have the exhaust fan all night even though it gets 45- 50 degrees Fahrenheit at night? they won't freeze or cause any problems to my plants do you think?

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No I don't think you should be pulling 45 -50 degree air into your tent. Is there anyway you can pull warmer air in? The airflow will significantly help with the humidity.

The reason I mentioned an oil filled heater is because they don't have an exposed element and are safe. I have one in my tent right now as the temps are too cold with lights off and I'm bringing in fresh air. Tent is in the garage. Temp stays at 65 - 68 F in the tent during lights out which is perfect.

xtsho said:

No I don't think you should be pulling 45 -50 degree air into your tent. Is there anyway you can pull warmer air in? The airflow will significantly help with the humidity.

The reason I mentioned an oil filled heater is because they don't have an exposed element and are safe. I have one in my tent right now as the temps are too cold with lights off and I'm bringing in fresh air. Tent is in the garage. Temp stays at 65 - 68 F in the tent during lights out which is perfect.

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Doesn't the air from the heat exhaust from The tent though? Out from the tent?