Heat speeds up evaporation
In hot weather the opening can appear quickly and projection may feel stronger at first, especially with sweet or dense fragrances.
Humidity can make scent feel fuller
High humidity can make some fragrances feel more noticeable in the air, while heavier scents may become more crowded for some wearers.
Cold slows development
In cooler conditions a fragrance may unfold more slowly, and it can take longer to reach its middle and base stages.
Adjust spray count to the environment
In heat or enclosed spaces, start with less. In cold or open air, add gradually only if the fragrance is genuinely too quiet.
Test in conditions similar to real use
If you are buying for summer or winter, try the fragrance in weather closer to how you will actually wear it rather than judging only inside an air-conditioned store.
Related guides
Weather does not change the formula itself, but it changes evaporation and diffusion, so performance can feel different across seasons.