Tioman Island, Malaysia: vitamin D, best months and travel guide
Jungle-covered island with quiet beaches. Best for: divers, hikers, families.
The best months for vitamin D in Tioman Island are July, when a full dose takes about 7 minutes at midday. Rainy or stormy from August to June.
Tioman Island month by month
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|
| January | Bad weather | 7.1 h | 7.3 | 7 min | 29°C | 27/30 |
| February | Bad weather | 8.3 h | 8.8 | 6 min | 32°C | 27/30 |
| March | Bad weather | 8.5 h | 9.0 | 6 min | 33°C | 25/30 |
| April | Bad weather | 8.3 h | 8.7 | 6 min | 31°C | 30/30 |
| May | Bad weather | 7.7 h | 7.6 | 7 min | 31°C | 26/30 |
| June | Bad weather | 7.2 h | 7.2 | 7 min | 30°C | 23/30 |
| July | Excellent | 7.7 h | 7.7 | 7 min | 31°C | 15/30 |
| August | Bad weather | 7.8 h | 8.0 | 7 min | 30°C | 23/30 |
| September | Bad weather | 7.7 h | 8.0 | 7 min | 30°C | 23/30 |
| October | Bad weather | 7.5 h | 8.1 | 7 min | 31°C | 18/30 |
| November | Bad weather | 7.1 h | 7.3 | 7 min | 30°C | 26/30 |
| December | Bad weather | 6.2 h | 6.5 | 8 min | 30°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 Tioman Island
Jungle-covered island with quiet beaches. Hot and humid all year with afternoon storms. The east coast islands (Perhentian, Redang, Tioman) close in the monsoon from November to February, while the west coast (Langkawi, Penang) is wetter around September and October.
In Tioman Island afternoon highs average from 29°C in January to 33°C in March. The wettest month is April (about 30 rainy days out of 30) and the driest is July (15). Midday UV peaks at 9.0 in March, which is very strong, so protect your skin.
More about Malaysia · Malaysia in July · Best places in July
Questions about Tioman Island
When is the best time to visit Tioman Island for vitamin D?
The best months for vitamin D in Tioman Island are July, when a full dose takes about 7 minutes at midday.
What is the weather like in Tioman Island?
Afternoon highs average from 29°C in January to 33°C in March. The wettest month is April, with about 30 rainy days out of 30.
Which months should I avoid in Tioman Island?
For a beach stay, avoid the months when it is rainy or stormy from August to June.