Cayo Santa María, Cuba: vitamin D, best months and travel guide
Causeway-linked cay with a clear lagoon and quiet beaches. Best for: couples, families.
The best months for vitamin D in Cayo Santa María are November to June, when a full dose takes about 6 minutes at midday. Too hot from July to September and rainy or stormy in October.
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Cayo Santa María month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Good | 6.2 h | 5.7 | 9 min | 27°C | 0/30 |
| February | Excellent | 7.0 h | 6.8 | 8 min | 26°C | 0/30 |
| March | Excellent | 8.0 h | 8.1 | 7 min | 28°C | 0/30 |
| April | Excellent | 8.7 h | 8.8 | 6 min | 28°C | 0/30 |
| May | Excellent | 9.2 h | 8.9 | 6 min | 30°C | 0/30 |
| June | Excellent | 8.6 h | 8.2 | 7 min | 31°C | 0/30 |
| July | Too hot | 9.2 h | 8.8 | 6 min | 32°C | 0/30 |
| August | Too hot | 8.3 h | 8.3 | 6 min | 32°C | 0/30 |
| September | Too hot | 8.2 h | 8.1 | 7 min | 32°C | 0/30 |
| October | Bad weather | 7.4 h | 7.1 | 8 min | 31°C | 0/30 |
| November | Good | 6.5 h | 5.9 | 9 min | 28°C | 0/30 |
| December | Good | 5.8 h | 5.3 | 10 min | 26°C | 0/30 |
Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, for skin type III. Rainy days are days with at least 1 mm out of 30.
What to expect in Cayo Santa María
Causeway-linked cay with a clear lagoon and quiet beaches. A dry season from November to April and a hot, wet season with hurricane risk from June to November. Services and supplies are limited, so bring what you need and cash. The internet is slow.
In Cayo Santa María afternoon highs average from 26°C in February to 32°C in August. The wettest month is January (about 0 rainy days out of 30) and the driest is December (0). Midday UV peaks at 8.9 in May, which is very strong, so protect your skin.
Questions about Cayo Santa María
When is the best time to visit Cayo Santa María for vitamin D?
The best months for vitamin D in Cayo Santa María are November to June, when a full dose takes about 6 minutes at midday.
What is the weather like in Cayo Santa María?
Afternoon highs average from 26°C in February to 32°C in August. The wettest month is January, with about 0 rainy days out of 30.
Which months should I avoid in Cayo Santa María?
For a beach stay, avoid the months when it is too hot from July to September and rainy or stormy in October.