Manuel Antonio, Costa Rica: vitamin D, best months and travel guide
National park beaches with sloths and monkeys. Best for: families, nature lovers, couples.
The best months for vitamin D in Manuel Antonio are December to April, when a full dose takes about 6 minutes at midday. Rainy or stormy from May to November.
Manuel Antonio month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Excellent | 7.8 h | 7.8 | 7 min | 30°C | 3/30 |
| February | Excellent | 8.3 h | 8.7 | 6 min | 31°C | 5/30 |
| March | Excellent | 8.3 h | 8.8 | 6 min | 31°C | 10/30 |
| April | Excellent | 8.4 h | 8.9 | 6 min | 31°C | 14/30 |
| May | Bad weather | 8.2 h | 8.3 | 6 min | 30°C | 22/30 |
| June | Bad weather | 7.4 h | 7.6 | 7 min | 29°C | 27/30 |
| July | Bad weather | 7.5 h | 7.8 | 7 min | 28°C | 22/30 |
| August | Bad weather | 7.5 h | 7.8 | 7 min | 28°C | 23/30 |
| September | Bad weather | 7.6 h | 8.0 | 7 min | 28°C | 24/30 |
| October | Bad weather | 6.9 h | 7.5 | 7 min | 28°C | 27/30 |
| November | Bad weather | 5.7 h | 6.2 | 9 min | 27°C | 24/30 |
| December | Excellent | 7.2 h | 7.2 | 7 min | 28°C | 13/30 |
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 Manuel Antonio
National park beaches with sloths and monkeys. A dry season from December to April, a green season from May to November with afternoon rain, and humid heat on the coasts. Roads can be slow, and it is not a budget destination.
In Manuel Antonio afternoon highs average from 27°C in November to 31°C in February. The wettest month is June (about 27 rainy days out of 30) and the driest is January (3). Midday UV peaks at 8.9 in April, which is very strong, so protect your skin.
More about Costa Rica · Costa Rica in February · Best places in February
Questions about Manuel Antonio
When is the best time to visit Manuel Antonio for vitamin D?
The best months for vitamin D in Manuel Antonio are December to April, when a full dose takes about 6 minutes at midday.
What is the weather like in Manuel Antonio?
Afternoon highs average from 27°C in November to 31°C in February. The wettest month is June, with about 27 rainy days out of 30.
Which months should I avoid in Manuel Antonio?
For a beach stay, avoid the months when it is rainy or stormy from May to November.