Antsiranana, Madagascar: vitamin D, best months and travel guide
Northern port near a huge bay with a sugar-loaf rock. Best for: kitesurfers, adventurous travellers.
The best months for vitamin D in Antsiranana are May to November, when a full dose takes about 6 minutes at midday. Rainy or stormy from December to April.
Antsiranana month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Bad weather | 7.2 h | 7.8 | 7 min | 30°C | 26/30 |
| February | Bad weather | 8.6 h | 9.2 | 6 min | 31°C | 25/30 |
| March | Bad weather | 7.0 h | 7.6 | 7 min | 30°C | 22/30 |
| April | Bad weather | 7.6 h | 7.8 | 7 min | 31°C | 19/30 |
| May | Excellent | 7.2 h | 7.0 | 8 min | 31°C | 5/30 |
| June | Good | 7.1 h | 6.6 | 8 min | 31°C | 1/30 |
| July | Excellent | 7.3 h | 6.9 | 8 min | 30°C | 0/30 |
| August | Excellent | 8.0 h | 7.9 | 7 min | 30°C | 0/30 |
| September | Excellent | 8.4 h | 8.8 | 6 min | 30°C | 1/30 |
| October | Excellent | 8.8 h | 9.4 | 6 min | 32°C | 3/30 |
| November | Excellent | 8.9 h | 9.3 | 6 min | 33°C | 8/30 |
| December | Bad weather | 8.5 h | 8.9 | 6 min | 31°C | 25/30 |
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 Antsiranana
Northern port near a huge bay with a sugar-loaf rock. A dry season from May to October, hot humid summers with cyclones on the east coast, and long, rough road journeys. Services are basic outside tourist islands.
In Antsiranana afternoon highs average from 30°C in August to 33°C in November. The wettest month is January (about 26 rainy days out of 30) and the driest is August (0). Midday UV peaks at 9.4 in October, which is very strong, so protect your skin.
More about Madagascar · Madagascar in October · Best places in October
Questions about Antsiranana
When is the best time to visit Antsiranana for vitamin D?
The best months for vitamin D in Antsiranana are May to November, when a full dose takes about 6 minutes at midday.
What is the weather like in Antsiranana?
Afternoon highs average from 30°C in August to 33°C in November. The wettest month is January, with about 26 rainy days out of 30.
Which months should I avoid in Antsiranana?
For a beach stay, avoid the months when it is rainy or stormy from December to April.