Hot-weather choices
Extrait de parfum for hot weather
Extrait de parfum is not categorically banned from hot-weather wear, but the exact composition and your setting matter. A concentration-style label cannot establish how comfortable or noticeable the product will feel in heat.
A HUME Fragrance buying guide

Consider the whole interpretation
Read the note balance rather than judging only the extrait label. Warm, woody and fresh impressions are independent of a simple concentration ranking.
Make the first trial restrained
Follow the applicator's directions and test where fragrance is appropriate. Compare your outdoor and indoor comfort rather than seeking maximum projection.
Avoid improvised temperature fixes
Follow the maker's storage directions instead of heating, freezing or otherwise altering the product to change its performance. Keep wear testing separate from product handling.
Try this before you buy
Write the setting, application and later comfort before deciding if the exact extrait fits your summer routine.