Hua Hin, Thailand: vitamin D, best months and travel guide
Royal-favoured beach town with a long sandy shore. Best for: families, retirees, golfers.
The best months for vitamin D in Hua Hin are November to February, when a full dose takes about 6 minutes at midday. Too hot from March to May and in August and rainy or stormy from June to July and from September to October.
Hua Hin month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Excellent | 7.5 h | 7.3 | 7 min | 31°C | 4/30 |
| February | Excellent | 8.1 h | 8.4 | 6 min | 33°C | 4/30 |
| March | Too hot | 8.4 h | 9.0 | 6 min | 35°C | 6/30 |
| April | Too hot | 8.8 h | 9.3 | 6 min | 36°C | 1/30 |
| May | Too hot | 7.5 h | 7.9 | 7 min | 34°C | 19/30 |
| June | Bad weather | 5.8 h | 6.6 | 8 min | 33°C | 21/30 |
| July | Bad weather | 3.9 h | 5.0 | 11 min | 31°C | 28/30 |
| August | Too hot | 6.8 h | 7.6 | 7 min | 33°C | 25/30 |
| September | Bad weather | 6.1 h | 7.4 | 7 min | 33°C | 20/30 |
| October | Bad weather | 6.9 h | 7.2 | 7 min | 31°C | 23/30 |
| November | Excellent | 7.0 h | 7.0 | 8 min | 30°C | 12/30 |
| December | Excellent | 7.2 h | 7.0 | 8 min | 29°C | 4/30 |
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 Hua Hin
Royal-favoured beach town with a long sandy shore. A hot dry season from November to February on both coasts, and monsoon rain from May to October on the Andaman side (Phuket, Krabi). The Gulf side (Samui) is driest in the first months of the year. March to May is very hot.
In Hua Hin afternoon highs average from 29°C in December to 36°C in April. The wettest month is July (about 28 rainy days out of 30) and the driest is April (1). Midday UV peaks at 9.3 in April, which is very strong, so protect your skin.
More about Thailand · Thailand in February · Best places in February
Questions about Hua Hin
When is the best time to visit Hua Hin for vitamin D?
The best months for vitamin D in Hua Hin are November to February, when a full dose takes about 6 minutes at midday.
What is the weather like in Hua Hin?
Afternoon highs average from 29°C in December to 36°C in April. The wettest month is July, with about 28 rainy days out of 30.
Which months should I avoid in Hua Hin?
For a beach stay, avoid the months when it is too hot from March to May and in August and rainy or stormy from June to July and from September to October.