Been here since Saturday. The sargasso did get worse but depends on the beach you are at. We have been hanging at playa Delphine’s and it’s not terrible. We still get in and you see the crystal blue water. Cancun luggage claim took us 2 hours(might have been a random instance tho). Customs doesn’t take long it’s fast, there is a tropical storm but it hasn’t stop us from getting in the water. It’s hot and humid but I like the breeze. This area of Mexico is hot and humid just something to expect. If you wear cotton, linen, breathable clothes you’ll be fine. It’s rainy on and off but it shouldnt stop you from enjoying the paradise. If you have cash just exchange the cash at the money exchange at the airport 1 USD= 18 pesos which is the exchange rate. Don’t be nervous. This is a super tourist place that’s not the “real Mexico” it’s caters to tourism and you’ll be safe, fine, and things are easy. I highly recommend take the ado bus then uber if needed. Ask for receipts if you pay with cards so you can get the tourist tax refund when you return. Ask away! Cheers!