Cayo Guillermo in december: average Weather, Temperature and Climate
Weather in Cayo Guillermo in december 2026
The weather in Cayo Guillermo in december comes from statistical datas on the last years. You can view the weather statistics for the whole month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
perfect weather UV index: 7
Weather at 6am
77°F
Moderate rain at times
36% of time
31%
21%
11%
Weather at 12pm
79°F
Clear/Sunny
37% of time
29%
24%
8%
Weather at 6pm
79°F
Clear/Sunny
38% of time
29%
22%
9%
Weather at 3am
77°F
36%
25%
25%
14%
Evolution of daily average temperature and precipitation in Cayo Guillermo in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cayo Guillermo in december.
The climate of Cayo Guillermo in december is perfect
the weather in Cayo Guillermo in december is relatively dry (with 2.9in of precipitation over 4 days). The weather is better from the previous month since in november it receives an average of 6.7in of precipitation over 8 days.
The climate comfortable there this month. Temperatures are up to 79°F. The minimum is 77°F. Thus, the mean temperature average on this month of december in Cayo Guillermo is 79°F. These temperatures are far removed from those records observed in Cayo Guillermo in the month of december with a maximum record of 85°F in 2009 and a minimum record of 59°F in 2020.
In december in Cayo Guillermo, the days on average last 10:46. The sun rises at 06:47 and sets at 17:33.
With good weather conditions, this month is advisable to go in that area.
Seasonal average climate and temperature of Cayo Guillermo in december
Check below seasonal norms These datas are generated from the weather statements of the last years of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 79°F | ||||
| Highest temperature | 79°F | ||||
| Lowest temperature | 77°F | ||||
| Highest record temperature | 85°F (2009) | ||||
| Lowest record temperature | 59°F (2020) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 79°F | ||||
| Lowest sea temperature | 77°F | ||||
| Highest sea temperature | 81°F | ||||
| Wind | |||||
| Wind speed | 28km/h | ||||
| Wind temperature | 77°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 2.9in | ||||
| Number of days with rainfall | 4 day(s) (13%) | ||||
| Record daily rainfall | 1.6in (2012) | ||||
| Other climate data | |||||
| Humidity | 79% | ||||
| Visibility | 9.78km | ||||
| Cloud cover | 39% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 8 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:47 | ||||
| Time of sunset | 17:33 | ||||
| Length of day | 10:46 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | perfect | ||||
How was the weather last december?
Here is the day by day recorded weather in Cayo Guillermo in december 2025:
74°F to 85°F
76°F to 85°F
74°F to 83°F
72°F to 79°F
72°F to 86°F
76°F to 85°F
74°F to 83°F
68°F to 88°F
67°F to 85°F
74°F to 86°F
72°F to 81°F
74°F to 85°F
74°F to 83°F
76°F to 85°F
72°F to 81°F
74°F to 79°F
72°F to 81°F
74°F to 85°F
72°F to 86°F
74°F to 81°F
74°F to 83°F
74°F to 79°F
74°F to 83°F
74°F to 79°F
70°F to 76°F
70°F to 77°F
68°F to 77°F
68°F to 76°F
70°F to 77°F
68°F to 76°F
65°F to 77°F
Map: other cities in Cuba in december
Cities near Cayo Guillermo:
| Cayo Coco in december | perfect weather |
| Cayo Santa Maria in december | perfect weather |
| Parque nacional Caguanes in december | perfect weather |
| Morón in december | perfect weather |
| Cayo Romano in december | perfect weather |
| Caibarién (La Villa Blanca) in december | perfect weather |
| Cayo Cruz in december | perfect weather |
| Sancti Spiritus in december | perfect weather |
| Santa Clara in december | good weather |
| Playa Santa María in december | perfect weather |
| Tunas de Zaza in december | perfect weather |
| Isabela de Sagua in december | perfect weather |
Click over cities on the map for information about the weather in december.
Cayo Guillermo
perfect weather
good
tolerable
bad
very bad
Weather data for Cayo Guillermo in december:
Weather data for Cayo Guillermo for december are derived from an average of the weather forecast since 2009 in Cayo Guillermo. There is a margin of error and these forecasts are to be considered as general information only. The weather in Cayo Guillermo can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Cayo Guillermo.