Phú Quốc, Vietnam: vitamin D, best months and travel guide
Largest Vietnamese island with sandy beaches and night markets. Best for: families, couples.
The best months for vitamin D in Phú Quốc are December to March, when a full dose takes about 6 minutes at midday. Rainy or stormy from April to November.
Phú Quốc month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Excellent | 7.2 h | 7.3 | 7 min | 30°C | 9/30 |
| February | Excellent | 8.0 h | 8.4 | 6 min | 31°C | 12/30 |
| March | Excellent | 8.4 h | 9.0 | 6 min | 32°C | 11/30 |
| April | Bad weather | 8.6 h | 8.9 | 6 min | 33°C | 21/30 |
| May | Bad weather | 8.2 h | 8.3 | 6 min | 32°C | 26/30 |
| June | Bad weather | 7.3 h | 7.4 | 7 min | 30°C | 29/30 |
| July | Bad weather | 6.0 h | 6.7 | 8 min | 28°C | 30/30 |
| August | Bad weather | 8.2 h | 8.7 | 6 min | 29°C | 29/30 |
| September | Bad weather | 6.3 h | 7.0 | 8 min | 29°C | 29/30 |
| October | Bad weather | 7.6 h | 8.0 | 7 min | 29°C | 29/30 |
| November | Bad weather | 7.5 h | 7.5 | 7 min | 30°C | 19/30 |
| December | Excellent | 7.0 h | 6.8 | 8 min | 30°C | 12/30 |
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 Phú Quốc
Largest Vietnamese island with sandy beaches and night markets. Different climates in the north, centre and south. The central coast (Da Nang, Hoi An) is best from February to May; the south is dry from December to April; typhoons can hit the centre from September to November.
In Phú Quốc afternoon highs average from 28°C in July to 33°C in April. The wettest month is July (about 30 rainy days out of 30) and the driest is January (9). Midday UV peaks at 9.0 in March, which is very strong, so protect your skin.
More about Vietnam · Vietnam in March · Best places in March
Questions about Phú Quốc
When is the best time to visit Phú Quốc for vitamin D?
The best months for vitamin D in Phú Quốc are December to March, when a full dose takes about 6 minutes at midday.
What is the weather like in Phú Quốc?
Afternoon highs average from 28°C in July to 33°C in April. The wettest month is July, with about 30 rainy days out of 30.
Which months should I avoid in Phú Quốc?
For a beach stay, avoid the months when it is rainy or stormy from April to November.