San Andrés, Colombia: vitamin D, best months and travel guide
Caribbean island with a sea of seven colours. Best for: families, couples.
The best months for vitamin D in San Andrés are January to May, when a full dose takes about 6 minutes at midday. Rainy or stormy from June to December.
San Andrés month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Excellent | 7.6 h | 7.5 | 7 min | 28°C | 14/30 |
| February | Excellent | 8.0 h | 8.4 | 6 min | 27°C | 7/30 |
| March | Excellent | 8.4 h | 9.0 | 6 min | 28°C | 4/30 |
| April | Excellent | 8.7 h | 9.1 | 6 min | 28°C | 10/30 |
| May | Excellent | 7.8 h | 8.2 | 7 min | 29°C | 16/30 |
| June | Bad weather | 7.9 h | 7.9 | 7 min | 29°C | 24/30 |
| July | Bad weather | 7.6 h | 7.6 | 7 min | 29°C | 26/30 |
| August | Bad weather | 8.7 h | 8.9 | 6 min | 29°C | 22/30 |
| September | Bad weather | 7.5 h | 8.0 | 7 min | 29°C | 25/30 |
| October | Bad weather | 6.7 h | 7.2 | 7 min | 29°C | 24/30 |
| November | Bad weather | 7.2 h | 7.1 | 8 min | 29°C | 29/30 |
| December | Bad weather | 6.5 h | 6.2 | 9 min | 28°C | 26/30 |
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 San Andrés
Caribbean island with a sea of seven colours. The Caribbean coast is hot and driest from December to April, with a wetter season from May to November. Take normal city care. The people are warm and music fills the streets.
In San Andrés afternoon highs average from 27°C in February to 29°C in September. The wettest month is November (about 29 rainy days out of 30) and the driest is March (4). Midday UV peaks at 9.1 in April, which is very strong, so protect your skin.
More about Colombia · Colombia in March · Best places in March
Questions about San Andrés
When is the best time to visit San Andrés for vitamin D?
The best months for vitamin D in San Andrés are January to May, when a full dose takes about 6 minutes at midday.
What is the weather like in San Andrés?
Afternoon highs average from 27°C in February to 29°C in September. The wettest month is November, with about 29 rainy days out of 30.
Which months should I avoid in San Andrés?
For a beach stay, avoid the months when it is rainy or stormy from June to December.