Cancun weather

We've looked at the most up-to-date weather data for Cancun, covering the last 12 years up to 2021, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Cancun weather in January.

How warm is it in Cancun during January?

January is typically the coolest month in Cancun, although we use the term cool in a relative sense! Expect heat, with the temperature hitting about 26℃ during the day, falling away to a balmy 22℃ at night.The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.

Does it rain in Cancun during January?

On average, there will be 20 rainy days during the month, amounting to 66.6mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. You're not likely to see a thunderstorm during your trip.

How warm is the sea in Cancun during January?

The water around Cancun reaches a very pleasant 27℃ during January. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable. The hot air temperature will mean that you will feel comfortably warm when coming out of the water.