When it comes to growing cannabis indoors, different temperatures come into play for each stage of the cannabis plant. The ideal temperatures for the vegetative stage is between 20-25 degrees Celsius, with moderate humidity while also providing slightly cooler temperatures during dark periods. Cool night periods are known to encourage growth, but never let temperatures drop below 15 degrees Celsius.
Once the plant matures, it should be able to withstand cooler temperatures during the day and a bit less humidity. During the flowering stags of the grow cycle, a daytime temperature that sits anywhere between 18-26 degrees Celsius is ideal. While night temperatures can sit anywhere in the range of 20-24 degrees Celsius.
We recommend purchasing a thermometer to keep an eye on temperatures and humidity levels in the garden. The temperatures can be altered by providing more air flow and changing the settings of the fans and filters. Let us know if you have any questions and happy growing!