When is the best time to go to Cayo Guillermo?

When is the best time to go to Cayo Guillermo? Here's some information to help you in your decision:

  • The best months for good weather in Cayo Guillermo are January, February, March, April, November and December
  • On average, the warmest months are May, June, July, August, September and October
  • The rainiest months are September and October
  • The best months for swimming are April, May, June, July, August, September, October, November and December

Annual weather in Cayo Guillermo

For full information about the climate and weather in Cayo Guillermo a specific month, click on the corresponding line below:

January 76°F/77°F
February 76°F/77°F
March 76°F/77°F
April 77°F/81°F
May 81°F/83°F
June 83°F/85°F
July 83°F/86°F
August 85°F/86°F
September 85°F/86°F
October 83°F/85°F
November 79°F/81°F
December 77°F/79°F

Weather and climate in Cayo Guillermo

Cayo Guillermo enjoys a tropical savanna climate (with dry winter) in accordance with the Köppen-Geiger classification. The yearly average maximum temperature in Cayo Guillermo is 83°F (ranging from 77°F in january to 86°F in august). Annual rainfall is 75.3in, with a minimum of 1.9in in march and a maximum of 12.5in in october.
  • Between january and june the climate is good. The temperature rises to 85°F and it rains about 7.2in each month.
  • Between the months of july and september the climate is just OK. The temperature rises to 86°F and, in september, 15 days of rain are expected.
  • Between the months of october and december the climate is favorable. By early evening, the temperature averages 79°F and it rains about 3in each month.

Cayo Guillermo :

Charts: temperature and rainfall in Cayo Guillermo

In the charts below, you can see the following seasonal norms for the city of Cayo Guillermo: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature


Peak visitor numbers and tourist seasons in Cayo Guillermo

Find out when Cayo Guillermo has its high tourist season (the period when the influx of tourists is highest) and off-peak tourist season using our data and figures.

Tourist seasons in Cayo Guillermo

  • Very low season in Cayo Guillermo
    The months with the lowest number of tourists are: May, June, September and October.
  • Low season in Cayo Guillermo
    The months with low numbers of tourists are: July and November.
  • High season in Cayo Guillermo
    The number of visitors to Cayo Guillermo is high in: April and August.
  • Peek season in Cayo Guillermo
    The largest number of tourists visiting Cayo Guillermo is during: January, February, March and December.

Figure: Visitor index for Cayo Guillermo month by month

Best time for low prices in Cayo Guillermo

Average prices of hotels in Cayo Guillermo month by month

Generally, October is the month with the lowest hotel prices in Cayo Guillermo. So this is a great time to save on your holiday! In contrast, March is statistically the most expensive month of the year for hotels.

Find the best price for your hotel room

Other cities and places near Cayo Guillermo

Chargement en cours
Legend: Cayo Guillermo other locations

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