Willemstad, Curaçao: vitamin D, best months and travel guide
UNESCO harbour town of pastel gables and a floating bridge. Best for: culture travellers, couples.
The best months for vitamin D in Willemstad are February to October, December, when a full dose takes about 6 minutes at midday. Rainy or stormy in January and in November.
Willemstad month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Bad weather | 7.6 h | 7.5 | 7 min | 30°C | 18/30 |
| February | Excellent | 7.9 h | 8.1 | 7 min | 30°C | 11/30 |
| March | Excellent | 8.4 h | 9.0 | 6 min | 31°C | 3/30 |
| April | Excellent | 8.7 h | 9.1 | 6 min | 32°C | 7/30 |
| May | Excellent | 8.6 h | 8.5 | 6 min | 32°C | 9/30 |
| June | Excellent | 8.7 h | 8.5 | 6 min | 32°C | 8/30 |
| July | Excellent | 8.7 h | 8.5 | 6 min | 32°C | 9/30 |
| August | Excellent | 8.6 h | 8.8 | 6 min | 33°C | 5/30 |
| September | Excellent | 8.4 h | 8.7 | 6 min | 33°C | 5/30 |
| October | Excellent | 8.0 h | 8.2 | 7 min | 33°C | 6/30 |
| November | Bad weather | 7.3 h | 7.1 | 8 min | 31°C | 21/30 |
| December | Excellent | 7.1 h | 6.7 | 8 min | 30°C | 15/30 |
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 Willemstad
UNESCO harbour town of pastel gables and a floating bridge. Dry, windy and warm all year, and outside the hurricane belt. Beaches are small and often sit in coves, so arrive early.
In Willemstad afternoon highs average from 30°C in January to 33°C in September. The wettest month is November (about 21 rainy days out of 30) and the driest is March (3). Midday UV peaks at 9.1 in April, which is very strong, so protect your skin.
The capital and largest city of Curaçao. The city center and the waterfront is inscribed on the UNESCO World Heritage List. (Wikivoyage, CC BY-SA 4.0)
More about Curaçao · Curaçao in March · Best places in March
Questions about Willemstad
When is the best time to visit Willemstad for vitamin D?
The best months for vitamin D in Willemstad are February to October, December, when a full dose takes about 6 minutes at midday.
What is the weather like in Willemstad?
Afternoon highs average from 30°C in January to 33°C in September. The wettest month is November, with about 21 rainy days out of 30.
Which months should I avoid in Willemstad?
For a beach stay, avoid the months when it is rainy or stormy in January and in November.