Tips for wearing hijab and modest clothes in this crazy heat?

Assalamu alaikum! I'm a Korean sister on the verge of converting, alhamdulillah. For a few months now I've been covering and praying, but with this scorching heatwave (it's like 40°C and super humid!), I'm really struggling to choose outfits. How do you all manage hijab and modest dressing when it feels like an oven outside? Any practical advice would be so appreciated. Jazakum Allahu khairan!