Should I switch to a lighter moisturizer and use more sunscreen in humid weather?

Yes. Swap your thick winter cream for a gel or water-based moisturizer, and use SPF 30+ every day — even if it’s cloudy. Heavy creams just clog pores in humidity, while a gel moisturizer with hyaluronic acid or glycerin hydrates without grease. Sunscreen is non-negotiable because you’re sweating more; look for “oil-free” or “matte finish” if you’re prone to breakouts.