The dry season in Tioman extends from March to October. The East Coast Monsoon is between November and February when the frequent rains are punctuated by intermittent sunshine. This is the cooler season. Temperatures year-round range from 21°C to 35°C (70°F to 90°F). Water temperatures are always a pleasant 25°C to 28°C.
Local weather forecast: http://www.kjc.gov.my (select 'Tioman' marine region dropdown)

Malay is the native tongue but English is widely spoken on the island.

HEALTH

It is not necessary to take malaria tablets or vaccination for yellow fever, but if you are in doubt, please consult your doctor or family physician.

Tioman is +8 hours ahead of GMT and +16 hours ahead of U.S. Pacific Standard Time.