Top 5 things for tourists to know about Tulum in September

About 65% of the time, I can find seawater nearly sargassum-free, especially at low tide after a rain.
Sargassum is a seaweed invading Caribbean beaches.
The exchange rate is favorable for foreigners, in addition to haggled bargains.
I haggled a bike price down from the listed sale price.
It’s “low season” so there aren’t too many tourists.
It’s so hot and humid, I sweat just thinking – without moving any external muscles.
I’ve accepted that I will sweat all day.
Cenotes are more popular due to the sargassum and heat.
Cenotes are cool, natural, fresh water swimming holes that dot the jungle around Tulum.