There is a range of variables that may significantly impact greenhouse humidity and temperature, for instance, broad external temperature swings from day to night, or the flow of outside air to the greenhouse atmosphere.
Taking into consideration the value of temperature and relative humidity on plant life, it is clear that the requirements in a greenhouse can not be left unattended, and have to be carefully controlled. With environmental control manager greenhouses could be controlled in accordance with their place and the surrounding atmospheric conditions.
In humid environments, active and passive venting are popular ways of controlling humidity and temperature, since the atmosphere is already moist, and just enabling convection to move hot air out and up and warmer air in will efficiently regulate temperature.
The temperatures and relative humidity in a greenhouse are just two variables that have a massive effect on plant development, and a greenhouse with badly managed atmospheric conditions won't ever function at its entire potential.
Fortunately, there are a lot of management methods that may be implemented to maintain both the humidity and temperature in a greenhouse at optimum or near-optimal degrees, encouraging healthy growth and reduced costs.
Relative humidity clarifies the quantity of water vapor stored in the atmosphere compared to how much will be necessary for saturation — if the water will then float into liquid form.