On many product labels and in particular the application instructions or product information, you will see the words ‘Under normal conditions’ or something similar.
This refers to your local atmospheric conditions such as temperature and humidity.
Higher or lower than average temperature or humidity may change the products performance as far as for example, drying time is concerned.
At all times though, it is worth ensuring that when applied, the product is as expected after the advised drying time. If not, then leave it for a longer time and always ensure the product is as expected before continuing a process.