Weather and perfume
Does humidity affect perfume
Humid conditions can coincide with a different wearing experience, but humidity alone does not give a reliable prediction of perfume strength or duration. Heat, activity, airflow and the exact product also matter.
A HUME Fragrance buying guide

Avoid one-factor explanations
A humid commute differs from a still indoor room in several ways. One day's result cannot isolate water vapour as the cause.
Separate the observations
Record changing character, close-range scent and surrounding presence independently. They need not change together.
Compare ordinary repeats
Use the same product and record your routine across suitable days. Describe the context without claiming a controlled scientific test.
Try this before you buy
Log humidity as one condition alongside heat, activity and time indoors during a repeat wear.