Generally, you can anticipate the weather in Cayo Guillermo for the month of May is 24 with usual highs being around 31 degrees and a low of 21. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 24 |
| High Temperature | 31 |
| Low Temperature | 21 |
| Sunshine Per Day | 9 |
Useful Links: Cayo Guillermo Weather: Average Weather & Yearly Climate