Formentera, Spain: vitamin D, best months and travel guide
Tiny island of white sand and very clear water. Best for: couples, beach purists, cyclists.
The best months for vitamin D in Formentera are June to October, when a full dose takes about 7 minutes at midday. Too cool from November to May.
Formentera month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Too cold | 2.3 h | 2.9 | 18 min | 16°C | 6/30 |
| February | Too cold | 4.2 h | 3.8 | 14 min | 16°C | 4/30 |
| March | Too cold | 6.1 h | 5.2 | 10 min | 17°C | 6/30 |
| April | Too cold | 7.3 h | 6.1 | 9 min | 18°C | 4/30 |
| May | Too cold | 9.0 h | 7.5 | 7 min | 21°C | 1/30 |
| June | Excellent | 9.5 h | 7.8 | 7 min | 24°C | 2/30 |
| July | Excellent | 9.5 h | 7.8 | 7 min | 27°C | 0/30 |
| August | Excellent | 8.7 h | 7.2 | 7 min | 29°C | 2/30 |
| September | Good | 7.1 h | 6.1 | 9 min | 26°C | 6/30 |
| October | Good | 5.4 h | 4.6 | 12 min | 23°C | 5/30 |
| November | Too cold | 3.6 h | 3.4 | 16 min | 20°C | 7/30 |
| December | Too cold | 1.5 h | 2.6 | 21 min | 16°C | 3/30 |
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 Formentera
Tiny island of white sand and very clear water. Long sandy beaches, lively resorts, late dinners and a siesta culture. July and August are hot and crowded; spring and autumn are calmer and good value. The Atlantic coast and the north are cooler and wetter.
In Formentera afternoon highs average from 16°C in January to 29°C in August. The wettest month is November (about 7 rainy days out of 30) and the driest is July (0). Midday UV peaks at 7.8 in June.
Questions about Formentera
When is the best time to visit Formentera for vitamin D?
The best months for vitamin D in Formentera are June to October, when a full dose takes about 7 minutes at midday.
What is the weather like in Formentera?
Afternoon highs average from 16°C in January to 29°C in August. The wettest month is November, with about 7 rainy days out of 30.
Which months should I avoid in Formentera?
For a beach stay, avoid the months when it is too cool from November to May.