Hi M!x, my hair is different from yours so I'm still not sure what to suggest, but if you post in the 3b and 3c sections, I think you will get good responses.
Usually, for the summer, the advice is to use less rich and less creamy products than you would use in winter. One idea that might be useful is for you to contact Kathy Mack on this board. She will ship you all kinds of samples for very little money so that way you can try out stuff. Do a search for her name and send her a private message PM and she will help you out. She has a list on her page of all the products she has for sampling. If you have trouble locating her, send me a pm and I'll guide you through.
I love Curl Junkie Coffee Coco Cream Lite because it is less producty and sticky than a lot of other products I've tried, but my hair is mostly 3a so I'm not sure whether that would be a good product for you. Also, check out the product review section - there's tons of useful info there.
Wish I could be more helpful. Good luck and I hope you get good responses.
2/c and some 3A. Modified CG.
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Conditioners: Curl Junkie Beauticurls Strengthening Conditioner,
Deep condish: Curl Junkie Curl Rehab
Stylers: Experimenting with cones & sulfates while the dews are high. Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift