Hot-weather choices
Eau de toilette for hot weather
An eau de toilette can be a hot-weather option if you like the exact fragrance, but EDT does not guarantee freshness, low projection or frequent-refresh suitability. Evaluate the scent in the conditions you actually encounter.
A HUME Fragrance buying guide

Read the composition
A citrus or marine direction may interest you, but the full structure matters. Do not assume every EDT is a lighter version of the same EDP recipe.
Avoid automatic extra application
Follow the product's directions and check presence before adding more. Heat is not a universal instruction to increase the amount or reapply on a timer.
Keep storage separate
Choose a suitable place for the bottle away from heat and direct light. A fragrance used in summer still needs careful storage between wears.
Try this before you buy
Record your warm-weather trial before changing application simply because the product is called EDT.