Cayo Guillermo in september: average Weather, Temperature and Climate
Weather in Cayo Guillermo in september 2025
The weather in Cayo Guillermo in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
tolerable weather UV index: 7
Weather at 6am
85°F
Moderate rain at times
40% of time
24%
19%
13%
Weather at 12pm
86°F
Clear/Sunny
43% of time
26%
22%
9%
Weather at 6pm
85°F
Clear/Sunny
28% of time
23%
23%
22%
Weather at 3am
85°F
37%
26%
20%
10%
Evolution of daily average temperature and precipitation in Cayo Guillermo in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Cayo Guillermo in september.
The climate of Cayo Guillermo in september is tolerable
the weather in Cayo Guillermo in september is wet (with 10.7in of rainfall over 15 days). The situation is deteriorating compared to the previous month since in august there is an average of 9.1in of rainfall over 13 days.
The climate is very hot in that area this month. The high seasonal norm is 86°F. The seasonal minimum is 85°F. Thus, the mean temperature average on this month of september in Cayo Guillermo is 85°F. Note that seasonal normals are in contrast with those observed in Cayo Guillermo in september with a maximum record of 88°F in 2009 and a minimum record of 70°F in 2020. You can hope to have 86°F or more across the month.
On average, in Cayo Guillermo, the days of september last 12:16. Sunrise is at 06:01 and sunset is at 18:17.
With proper weather, this month is okay (but not good) to go in Cayo Guillermo in Cuba.
September: another location in Cuba?
If you want to go to Cuba in september, there are destinations with better weather than Cayo Guillermo:
In september, Holguín, Baracoa, Caibarién (La Villa Blanca), Guardalavaca, Nibujón and Playa Imias have good weather.
Seasonal average climate and temperature of Cayo Guillermo in september
Check below seasonal norms These datas are compiled from the weather statements of the last years of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 86°F | ||||
| Lowest temperature | 85°F | ||||
| Highest record temperature | 88°F (2009) | ||||
| Lowest record temperature | 70°F (2020) | ||||
| Number of days at +86°F | 13 day(s) (43%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 87°F | ||||
| Lowest sea temperature | 85°F | ||||
| Highest sea temperature | 88°F | ||||
| Wind | |||||
| Wind speed | 23km/h | ||||
| Wind temperature | 85°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 10.7in | ||||
| Number of days with rainfall | 15 day(s) (49%) | ||||
| Record daily rainfall | 12.6in (2017) | ||||
| Other climate data | |||||
| Humidity | 78% | ||||
| Visibility | 9.29km | ||||
| Cloud cover | 35% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:01 | ||||
| Time of sunset | 18:17 | ||||
| Length of day | 12:16 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | tolerable | ||||
How was the weather last september?
Here is the day by day recorded weather in Cayo Guillermo in september 2024:
83°F to 86°F
83°F to 85°F
85°F to 86°F
85°F to 85°F
85°F to 85°F
85°F to 85°F
83°F to 85°F
85°F to 86°F
85°F to 86°F
85°F to 85°F
85°F to 85°F
83°F to 86°F
85°F to 86°F
85°F to 86°F
83°F to 86°F
85°F to 86°F
83°F to 90°F
85°F to 88°F
83°F to 88°F
83°F to 88°F
81°F to 90°F
81°F to 90°F
83°F to 88°F
85°F to 88°F
83°F to 86°F
81°F to 88°F
83°F to 92°F
85°F to 88°F
85°F to 88°F
83°F to 90°F
Map: other cities in Cuba in september
Cities near Cayo Guillermo:
| Cayo Coco in september | tolerable weather |
| Cayo Santa Maria in september | tolerable weather |
| Parque nacional Caguanes in september | tolerable weather |
| Morón in september | tolerable weather |
| Cayo Romano in september | tolerable weather |
| Caibarién (La Villa Blanca) in september | good weather |
| Cayo Cruz in september | tolerable weather |
| Sancti Spiritus in september | tolerable weather |
| Santa Clara in september | tolerable weather |
| Playa Santa María in september | tolerable weather |
| Tunas de Zaza in september | tolerable weather |
| Isabela de Sagua in september | tolerable weather |
Click over cities on the map for information about the weather in september.
Cayo Guillermo
perfect weather
good
tolerable
bad
very bad
Weather data for Cayo Guillermo in september:
Weather data for Cayo Guillermo for september 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.