Good news, the cenotes offer all year-round great conditions to go out and explore. The visibility is excellent, you can see as far as the light will reach. The water temperature is stable 25 to 27 degrees (75 – 80 Fahrenheit). Perfect for exploring since there is also not much flow. Although the weather doesn’t affect the cenotes as they do elsewhere, below you’ll find all details to plan your trip to all your preferences.
The Yucatan Peninsula has two seasons, a dry and wet season. During the dry season algae will start blooming in some cenotes. Dry season start in November when the weather cools down to 23 degrees, with a bit of wind coming from the North. November is still “low” season and therefore offers better deals for accommodation and less crowded. December to April is high season. It brings some more wind and is generally dry. May is the end of the dry season and the weather cools down again.
The wet season starts in June. Typical in the rainy season is the yellow-brown (tea-like) color that can sometimes be seen, caused by tannic acid. Currently there is more chance on rainfall, with some wind. July and August are typically hot, with more locals going to the cenotes to cool down. This blue-greenish algae bloom can reduce the visibility at the surface, but as soon as you descent it is crystal clear again. September and October is low season, with a bit cooler weather around 24 degrees and chance on rain. Generally, there is less crowd at the cenotes and better options for availability. October is the end of the wet season.
In the Graphs below (Source: NOAA) you’ll see the temperatures and rainfall on land.